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December 31, 2018.  Issue #4,728 (no Jan 1 issue)

Friday morning I scooted out to 52F for a gas run up the Gainesville and back. Smooth flight, $3.50 gas and viz straight out of the brochure.  Great flight - logged .6 - been too long. RV performed flawlessly.  The plan was lunch at Mr. Frosty (built in '54) in Denton with some of the usual suspects.


Chris Pratt (RV-8) and I were texting and firming up plans - shaping up to be a good lunch. When I landed back at 52F I had a voice mail from Susie saying we had 1” of water in the master bedroom closet.  New plan...

Drove home fast, turned off the water to the house and all hands on deck moving clothes and drawers out into other rooms. Started kicking cutting out wet sheetrock. Rob (RV-8) and Randy (RV-8) showed up around lunch time to rub it in help find the leak.  It took us a bit, but the leak was found and plans were made for the fix. It turned out to be caused during the initial install over three decades earlier. The 'plumber' made a partial cut on a pipe, then decided to leave the pipe a little longer and instead made the actual cut further down. This partial cut, maybe because of metal stresses, maybe from molecules from the steel cutting blade being pressed into the copper (dissimilar metals), corroded, weakened, leaked and finally sprung a big honkin' jet sometime during the night last Thursday.  Took ~35 years.  Pics in the link below...

Water off all day. Line repair made. Fans drying things out. Sheetrock plan being formulated.  All about back to normal, and we’re only out about $20 so far in plumbing supplies.  Looks like a clothes bomb went off.  Mr. Frosty next week maybe.

More pics starting here

My dad passed on this day in 1999, and New Years Eve understandably has never been the same.  I'm usually a little down this time of year because of it, but on a drive up to Whataburger Sunday morning I caught myself smiling, because I know he would have really enjoyed complaining about this water leak.  He would have wanted to tear that plumber a new one the size of Texas.

The closet is almost dry as of press time.  Time to clean up the cut lines, start measuring and go to Lowes for supplies.  I'm going to put a removable panel where I can get back there easier next time if I ever need to.

While moving stuff out of the closet, Susie came across a family document that we thought was lost.  When Tate was a small boy he saw a frog that had been run over in the street in front of our house.  He asked Susie if he could write a note to the other frogs.  He put the note below on the ground out near the street.  Finding that note for our family was like finding the Magna Carta.  Our 'Huffman Prairie Moment' of the Great Water Leak of '18.  For the last 15 years or so whenever someone would see a frog, at least one family member could be counted on to blurt out, "Dear Frogs and Toads...".  Finding this made the year.


Happy New Year to our RV friends and thank you for supporting our little family business here - we're trying our hardest.   You help our lives be filled with laughs, motivation, compassion and true, honest friendship.  Increasingly rare things in today's world.

I got to fly a little a few days ago.  I get to earn a living doing something I'm passionate about.  I had some laughs with family and friends during a tough time of the year.  We got to see our daughter over the holidays.

In a weird way I'm a little grateful for the water leak.  There are worse problems to have.  It capped off the year with unplanned variety.  Isn't that the strangest thing to say?

Neighbors will let you use their shower.  Friends have your back.  Life, especially RV life, is pretty good.

Happy New Year from our family to yours and God Bless all of you.


RV Cheerleader


The last awful joke of '18:
Q: What do you call a fake noodle?
A: An impasta.


  This site is how our family eats and we sure would like to keep doing that.  26,352 forum accounts.  Tens of thousands of 'lurkers' (when there are 300 people online, it's usually ~50 registered and ~250 unregistered guests enjoying the site).  As of 12/16/18 there have been  1,867 donators so far (< 3% of the readers my best guess).  It's donation month here, so if you could, please give this a read.  To those who help us stay in business with a yearly donation, thank you!
  Like I said earlier, we like to eat food (not rocks).  This site is how our family makes that happen, with your help.  Please consider a donation if you haven't and are 'a regular'. v/r,dr


Revised RV-8 Sub-Cowl ...tuft testing update

I tufted our RV-8 and flew with the modified sub cowl a few days ago. The point of the sub cowl is to reduce the exit opening to raise CHT and oil temperature, which it has. (Our XP360 was running a bit too cool). The below video indicates the exit flow is not perfect but better than the first attempt.

Here is a video of the first attempt. Note the large lip on the trailing edge of the opening which caused flow separation.
JP White
RV-8 Phase 1 Complete!


Please read if converting from Fixed pitch to Constant Speed prop ...AX-O

In the process of changing from a fixed pitched prop to a constant speed prop, I have ran into one major issue. Hoping to have a thread that folks can view and use to make a decision before heading down this road.

If you are a moderator, please consider making this a sticky. It will save someone thousands of dollars and many weeks of troubleshooting and backtracking.

STOP!!!! before you even think about doing this conversion, some very costly advice i had to learn on my own (even though the info is out on VAF on various threads if you look around).

All engine cases are not crated equal. Make sure you know what type of case you have and how it has been configured. Just because you have a hallow crank does not mean you can convert to constant speed by adding a governor and associated line, gasket, pad, etc.

Some engine cases have a port/hole on the left engine case half. (Example picture, not my engine)  ...


RV-9 Performance PIREP ...Bill R.

My O-360 powered -9 taildragger spinning a fixed pitch Catto prop will cruise right at 175 knots at 8,000 feet density altitude at 75% power.

On Christmas day I spent some time exploring the lower end of the performance spectrum.

Short field:
Within 900' from the end of a runway on a no wind 60°F day, not my touchdown point, I was able to land and take off again. That was land, stop, raise the flaps, adjust the trim and take off in less than 900 feet. Since I floated past the end of the runway, I absolutely believe Van's numbers.

Optimal cruise:
On that same flight I thought I would see what my optimal extended range speed would be.

It turns out that 40% power gives me 135 knots running while burning 4.8 GPH LoP.
This works out to 28 GPH gives me a range of over 1000 NM.

What numbers are the rest of you seeing?


Show Us Your RV-4 ...tlump51 entry


Prop Help Requested ...Dewey Clawson

I recently purchased a 2012 RV10, 390 hrs, TTSMOH, TT airframe. IO540, Blended Airfoil Hartzell CS, MT prop controller.

I flew it home from TX, 7hrs, and Tue flew about an hour. Wed I took a puppy to just S of Albany, NY (2 hrs) and another guy took her on to her furever home in Maine. I took off on the return leg and was level at 8,000 IFR, just on top of the clag, about 63% power, 22inches, 2100rpm, or so and about to lean and the rpm ran away. 2700rom.

Yanked the throttle back, could not change the rpm with the prop lever. Prop had gone to flat pitch. Next thing I looked at was oil press. All OK. Started immediate turn back toward lower ground (was over the Catskills) and better wx and said the magic word....EMERGENCY. Landed at Kingston-Ulster airport, NY.

Found the only mechanic on the field. He was in the middle of 2 week vacation but came in to help me. We talked to Penn Yan and to NE Propeller Service. They gave us some ideas to look at.

1. Linkage was connected and worked OK ran eng and prop was not controllable.
2. Moved the prop by hand and each blade moved OK. rotate blades. OK
3. Stick a paper clip in the zirk fittings on the prop. Only grease in there.. OK
4. Removed the oil filter and inspected it for metal shavings. Looked OK. Front main bearing hasn't spun and blocked the oil passage.
5. Removed prop governor and drove 3 hours to New England Prop Service. They tested the governor and it checks OK.
Drove home 10 hours.
Out of ideas.



New RV Owner Chimes In


Complete RV8 Panel for Sale ...friend of mine.  Cleanest shop I've ever seen

It is time for an upgrade and I would like to sell my current panel as a complete unit. This will include all of the harnesses, probes, etc. that are currently installed. When I remove the panel I will label all of the wiring so it will easier to reinstall in your project. The Tru Trak Vision AP and pitch servo was purchased at OSH 2018 and installed in August. Everything is in good working order and is a great option for someone looking at an inexpensive and complete panel for your project.

This will include everything you see in the center panel as well as the EI Oil Pressure and Temp that is located in the right side panel. I also have a new-in-the-box Garmin 660 and AirGizmo mount that I was going to install where the 496 is currently before I decided do to a more extensive upgrade.

I have taken 50% of the cost of the equipment to come up with an asking price of $7,200 or $7,800 with the Aera 660 and Airgizmo mount.

The panel is located at Propwash Airport (16X) and I can deliver it to you via Cessna 180 if within a reasonable distance. I never need an excuse to fly!!!

Please call or email me directly if you are interested and I will provide a list of the equipment and more pictures.


Milestone: Back At It!


RV-14 Beringer Brake Install Pics as Requested ...Erimo

Here is my installation in few pics.   Connections at the gear leg/wheel didn't seem to me the main issue. Connection at the fuse belly/ gear leg , more.  Hoses have to fit with the leg fairings !!!


Support ...Paul (Flyleds)

We have updated the manual since you received your kit. It now includes the picture you're looking for! We had this as a separate page with our first batch of RV-9 kits but we must have missed this with yours.



December 28-30, 2018. Issue #4,727
  The mothership will be closed Monday (31st) and Tuesday (1st).  There will be a VAF edition here on the 31st, but not on the 1st.  I'll see you Monday!
  Wishing you and yours a happy, safe and RV-filled weekend!

Wallpaper Calendar for January '19

Solar Halo, birds searching for morning lift and RV-8 on climbout.  dr


Prop De-lamination RV-6 Update / Solved ...Brooks

Alright boys and girls,

Flew the pacesetter without a spinner today (no backplate). Honestly, I think it's almost the same speed with the little "test pilot" wind triangle I did. Regardless, climbs amazingly and ran smooth enough by just leaving my existing dynamic balancing washers where they were.

Not bad.

See the pictures:


GRT configuration ...Jeremy 7A

I'm in the middle of an avionics upgrade and can't seem to find the info I'm looking for to configure my GRT Sport EX/Horizon EX.

I used to have a Garmin 300xl, Sl30 and the internal GPS for the GRT. The nav choices under the softkeys were listed as GPS1, GPS2 and Nav. The 300xl was GPS 1.

I now have an Avidyne IFD440, SL30 and GRT internal GPS. I've checked and the appropriate serial counters are counting, the system seems to be aware of the sl30 but the only annunciated Nav choices are "440-1" and GPS2.

I know there are a number of ways of configuring it and I would like to hear from folks what their preferred setups are for IFR work and how I do it. I'm sure I'm missing something simple here but I would love to at least see "440-1" and "SL30" or "Nav" as a second choice. I really want to know what Nav sources I'm following!

I've got an email and phone call in to GRT but it's the holidays and I thought I would tap the brain trust...
All Best
Jeremy Constant
RV7A "Stella Luna"


Tip RE Removing Fuel Caps


Brake Bleeder Kit ...N319BC

I think I’ve found the Holy Grail in Brake bleeder kits all for less than $10.  While at Lowes I stumbled across this 2 Liter (0.5 gallon) Pressure sprayer for $5.88 in the home and garden section. While there, I went and bought 10 feet of 3/8 OD tubing (1/4” ID) ~ $3.00

Connect the 3/8” tubing (about 2 feet) to the sprayer and the other end to about 2 feet of ¼” “static” line tubing. Wire tie them together to prevent any leaks. Connect the static line ¼” tube to the zerk brake fitting (AKA bleeder valve) and you have bleeder kit that works with virtually NO spillage. Just a couple of drops when removing the tube from the brake (zerk fitting). I filled up the Left Main on my 10 in less than 5 minutes.

I cannot find a listing at the Lowes website but here is the manufactures info.  ...


Trimming External Step Kit ...mflemming

Using the belt sander with a 220 grit belt gave me a lot of control. The tube grinds away very easily.



December 27, 2018. Issue #4,726
  Windy and wet here in N.Texas Wednesday.  Whenever it clears up I'd like to fly up to Gainesville and get some gas.  Thursday is forecast nearly direct xwind at 14kts.  I don't know if I need gas that bad ;^).  I do know I need to get on the treadmill.
  Hope your modified work week isn't so clobbered and you're getting some RV time.

Salvage Project... new kit or rebuild? ...BruceMe

I have a RV4 half-built wing/emp I found for very reasonable nearby. Then I found a salvage also cheap... The wing is obvious, just finish it. The fuselage is teetering on the edge of rebuild/re-kit.

I purchased it cause it probably has enough fitting and bits and bobs to make it worth the ask.

I'd take this down to bulkheads. Straighten them all out then re-skin, maybe $2500 in aluminum. Or for $5,0000 I can buy a fuselage kit from Vans and start from scratch. I'm not sure which to do. Which way would you go and why?


Listen to this Stein Guy...he knows what he’s talking about

Q: (Turner B.) I have wiring harness from stein with all the wires for the EGT/CHT probes (brown wire). My Garmin engine sensor kit has all the probes which are terminated with staggered ring terminals with small screws.

I need to make connections between the brown wires and these probes - what are the acceptable/common methods for doing this? I've been using butt splices sealed with shrink tube for connecting other miscellaneous wires (in some cases of course devices have their own terminal plugs i.e. PMAG).

A: (Stein)
Ring Terminals are fine and used by many (we keep them in stock and obviously sell them too). Some folks also have/and do use spades, butt splices, knife splices and other methods.  It is nice to be able to remove them and swap if need be as previously mentioned, so we prefer "non-permanent" options like the small ring terminals.


And Speaking of Stein....

...have you seen the video library on his site?  You should.


New Builder Assist Entry

...Bill Davis in Florida.  In the B.A.P. page.


Otis Holt Chimes In on the Mechanical Fuel Pump Vapor-lock Issue Thread

The bypass valve aspect of the regulator should serve as a check valve against this. You might consider replacing the regulator with a simpler fixed bypass valve nominally set to 25-30psi. The metering valve should tolerate a range of pressures. Airflow performance systems rely entirely on a high-quality bypass valves and don’t require regulators. The hexagonal brass colored bodies shown in this photo of the dual pump system I’m installing are bypass valves that feed back into the return lines.(I’m eliminating the engine drive pump, thus redundant electric pumps).  ...


Wheel Fairing Question: Waxing screws ...Ken Stockman

I am at the point of putting on the wheel fairings where the plans tell you to used floxed epoxy around the areas where the fairings attach with screws. One is supposed to coat the screws with candle wax so they don't set up in the epoxy.

Question: Do I try to get as thin of a coat of wax on the screws as possible? Not sure what the best approach is. Or is there an alternative to wax?

Also the metal brackets are supposed to be covered with plastic tape. I assume that electrical tape is the best approach here.



Chasing the issue - low fuel pressure on takeoff  ...John C

The low fuel pressure on takeoff appears to be a design issue related to cavitation at the engine driven fuel pump. Controlling the pressure at the engine driven fuel pump appears to be the most direct fix.

The problem is not consistent. At times, the pressure at takeoff does not drop below 4-4.5 psi. At other times, the pressure can drop into the low 2s or even near 1 psi.

Often, I can lower the nose and pull back to 4000 rpm, see a pressure recovery, power up and continue the climb.

The two solutions offered prior were to use a blend of 100LL or just accept the low pressure if there is no engine falter. To me, neither is acceptable. I prefer, and the engine was designed for mo-gas.

Hopefully, the slightly higher rated Facet pump will boost the pressure at the engine driven pump to prevent the pump cavitation, if that is the issue.

The problem may only appear on the RV-12, at least according to two of the Rotax dealers and information from user’s groups or operators of other designs. Thus, it would appear to be a design issue related to the RV-12.


There are several contributors to the lessening of the pressure at the engine driven pump.
Static pressure with the Facet pump: 3 psi
Pressure with engine and Facet pump running: 5.5 psi
Pull the c/b: 5.2 psi
At higher rpms such as runup: 3.5-4.5 psi, sometimes drops to 3 psi, rarely to 2 psi.
At takeoff, the pressure often drops to 1-2 psi.

Van's, Rotax and others suggested instrumentation or installation issues as the source of the indicated or actual low pressure problem.

1. Bad engine driven fuel pump: changed engine driven fuel pump, same problem. Result, both engine driven fuel pumps are ok.

2. Unusual blockages restricting flow: Using the Facet pump only, the static pressure was 3.0 psi. The pressure transducer is on the right forward side of the firewall, near the top. Flow was 33 gph at the engine driven fuel pump; 20 gph at the fuel pressure transducer; and 1.4 gph at the end of the fuel return line (you should also see 1.5 gph flow on the Skyview.). I did not check the flow to each carburetor as they only need 2.5 gph to each. Result, no unusual blockages.

3. Bad fuel pressure sensor: Static pressure about 3 psi and drops to 1-2 psi on takeoff. A new sensor was added and the results were the same. Dynon pressure was compared to a mechanical gauge on the ground, at takeoff and in flight (see later post for mechanical installation). The mechanical gauge was consistently about 0.1-0.2 psi less than the Dynon sensor. Result: Dynon sensor is accurate to demonstrate that the large pressure drop was real.

The system design also contributes to the pressure loss. It appears that the typical overall system loss is about 1.5 to 2.0 psi attributed to increasing fuel flow when and the rpm is increased from idle to 4000-5000 rpm (see above).

4. Contributing to the overall loss:
Long fuel line runs: 140 inches of 3/8 tube. The Facet pump in the middle confuses the issue for me.
Numerous components/fittings: 4 components and 10 fittings
Six 90-degree bends (plus two 45-degree bends)

5. Column pressure due to column height from tank to engine driven pump: (this is included in the overall system loss)
from full tank: 8 inches or 0.2 psi
from empty tank: 21 inches or 0.5 psi

Takeoff dynamics further contribute to the pressure loss.

6. Increasing column height due to pitching up is added to the overall system loss.
10 degrees pitch at 72 inches: 12.5-inch column increase or 0.3 psi

7. longitudinal acceleration adds to the overall system loss:

0.2 Gs longitudinal acceleration calculated from change in ground speed. With a 90-inch horizontal column, the 0.2 G longitudinal acceleration = 18-inch column increase or 0.45 psi pressure loss during acceleraton and/or initial climb.

The total loss is about 2.5-3.0 psi at takeoff. The portion of pressure loss due to the takeoff appears to be about 0.7-0.8 psi and may be the reason that the problem typically appears during the takeoff and initial climb phase of flight. The pressure drop at takeoff lessens the pressure at the engine driven fuel pump. Perhaps that is the primary trigger for cavitation at the engine driven fuel pump.

The higher rated Facet pump may fully offset the takeoff effects.


Charity Cap Sighting ...Dvalcik

Future pilot - driving his “Gampa”.  VAF hat and Flight Jacket

(about the cap)



December 26, 2018. Issue #4,725

Moondog Christmas morning 0800.
Waiting for everyone to wake up...


Milestone: First Engine Run (video) ...j-red RV-8

Last Thursday I gathered my posse of fire-extinguisher wielding airport buddies and cranked her over for the first time.... nothing. Cranked again... nothing. Fuel? Check. Spark? Ahh, no spark. CPI seems to be on, magnets are showing as synching when the prop is turning but still no spark. Ross says to check and see if the coil pack is getting 12 volts. It isn’t. Gotta have something to do with the setup in the vertical power vp-x box, but my laptop is at home and now the two days of hard rain they’ve been predicting has started with a drizzle. Pushed the plane back in the hanger and kept working away at the left wingtip. ...


Chimed in with a Winning Calendar Ticket ...lucaperazzolli in N. Italy

"...I've got a Golden Ticket under my Christmas Tree, thanks Vans !  I need to plan a factory visit."


New Guy Chimes in ...Vancouver, BC (Ken Birss)

Looking for an RV7/7A!

Hello! Looking to get into the Vans world and figured this would be the place to put out some feelers as to what is on the market apart from the standard trade a plane/ barnstormers etc..

Looking for a 7 or 7A. IO-360 preferably with c/s prop, slider or tip up, IFR capable would be great, day/night lighting, dual controls...

If anyone knows of anyone interested in selling, send them my way! I’m up in Canada, so closer the better but would be willing to make a trip if it’s unreal.


Christmas Day Status Report ...jcarne RV7A

I love the holidays, so much more time to airplane!   First on the list, rivet the ADHARS mount that I fabricated.


IAC Known Sequences for 2019 ...ronschreck RV-8

When you are through with the eggnog and ready to get back in the cockpit you might like to try out the IAC KNOWN SEQUENCES for 2019. Final approval by the IAC Executive Committee is expected soon after the holidays but these sequences are the latest proposals by the Known Sequence Committee and I expect they will be approved without changes.

Below is the Sportsman Known. The only change from the original proposal was to change figure 8 from a reverse wedge to a forward wedge.  ...


Canopy Issue After Paint (Ugh) ...bkervaski

Yikes! (the pic makes it look a lot worse than it actually is)

This happened at the paint shop already during reassembly, the painter fixed it perfect. Happened again this morning. Been about 15 flights in between.

The best I can tell the is that I left the canopy up on it's pins, which keeps it at an angle, on Saturday. Came out today to fly, lifted the canopy, and "pop", this happened. I think what has happened is that it was in a position where the front thin aluminum was touching *every so slightly* and it got a little tacky (temperature change?) and held it in place just long enough for the lip to catch the seal. The more it raised, the more it started bending and digging in.

Already talked with the painter, he can fix it again. Evoke is great, took my call on Christmas Eve, love Jonathan and his team.  ...


Posted by the Mothership

Twas the night before Christmas, and out on Van’s ramp,
Not an airplane was stirring, not even a Champ.
The RVs were fastened to tiedowns with care,
In hopes that come morning, they’d all still be there.
The fuel trucks were nestled, all snug in their spots,
With gusts from two-forty at 39 knots.
I slumped at the fuel desk, now finally caught up,
And settled down comfortably, resting my butt.
When the radio lit up with noise and with chatter,
I turned up the volume to see what was the matter.
A voice clearly heard over static and snow,
Called for clearance to land at the airport below.
He barked his transmission so lively and quick,
I'd have sworn that the call sign he used was "St. Nick."
I called to the tower to turn up the lights,
The better to welcome this magical flight.
He called his position, no room for denial,
"RV Nick One, turnin' left onto final."
And what to my wondering eyes should appear,
But a VanGrunsven-built sleigh, with eight Lycoming Reindeer!
With vectors to final, down the glideslope he came,
As he passed all fixes, he called them by name:
"Now Dasher! Now Dancer! Now Prancer and Vixen!
On Comet! On Cupid!" What pills was he takin'?
While the controllers were sittin' and scratchin' their heads,
They phoned to my office, and I heard it with dread,
The message they left was both urgent and dour:
"When That RV pulls in, have him please call the tower."
He landed like silk, with the sled runners sparking,
Then I heard "Turn left at Alpha," and "Taxi to Van’s parking."
He slowed to a taxi, turned off of three-oh
And stopped on the ramp with a "Ho, ho-ho-ho..."
He stepped out of the sleigh, but before he could talk,
I ran out to meet him with our best set of chocks.
His red helmet and goggles were covered with frost
And his beard was all blackened from Reindeer exhaust.
His breath smelled like peppermint, gone slightly stale,
And he puffed on a pipe, but he didn't inhale.
His cheeks were all rosy and jiggled like jelly,
His boots were as black as a cropduster's belly.
He was chubby and plump, in his suit of bright red,
And he asked me to "fill it, with hundred low-lead."
He came dashing in from the snow-covered pump,
I knew he was anxious for drainin' the sump.
I spoke not a word, but went straight to my work,
And I filled up the sleigh, but I spilled like a jerk.
He came out of the restroom, and sighed in relief,
Then he picked up a phone for a Flight Service brief.
And I thought as he silently scribed in his log,
These reindeer could land in one-eighth-mile fog.
He completed his pre-flight, from the front to the rear,
Then he put on his headset, and I heard him yell, "Clear!"
And laying a finger on his push-to-talk,
He called up the tower for clearance and squawk.
"Take taxiway Alpha, the southbound direction,
Turn right three-two-zero at pilot's discretion."
As he sped down the runway, climbing like a beast,
"What kind of airplane is THAT? And traffic’s inbound from the east."
And I heard him proclaim, as he climbed into the dark night,
"Merry Christmas to all! RV has the traffic in sight!"

(with apologies to the original author and the many that have since modified!).  Van’s Aircraft wishes you and yours the Merriest of Christmases and Happy Holidays! We hope you have some time to build and fly this week, a great way to finish out 2018!



December 24-25, 2018. Issue #4,724

Susie, Audrey, Tate and I would like to wish you and yours a very Merry Christmas.  We are so fortunate to have as many online friends here as we do to share this RV building and flying adventure with.  We are truly, truly blessed to have so many wonderful people in our lives.  Merry Christmas! 

Note: I'll take Christmas (Tuesday) off, then it's business as usual Wed, Thu and Fri.


Status Report: Many Pics ...AX-O RV-4

Catching up on posts. I have been sick so have not been able to fly yet. The plane is ready. Paper work and pilot to follow.

I called Kathy at EarthX and ordered a 48 inch Quick Connect and Charging cable like this one Click

I also got a Jump Pack like this one Click since we used one at OSH this year to start a plane during the airshow.

The plan was to run the cable from the battery to a place in the cockpit that I could easily plug into if I need to. fairly easy process. Used the avionics knot to clean everything up and velcro at the end of the cable for securing/quick release.

The battery pack is very light, has an LED, USB charging plug and electronic built in protection for reverse polarity, etc. Surprisingly the 48 inch cable weighted about the same as the battery pack. It is a bigger gauge cable than what I had before since you can plug into this one for starting. Hope I never have to use it but is there if I need it.


RV-7A Status Report ...jcarne

After some dimpling and riveting it was time to for the ever stressful bending of the aileron skins. Seemed to go off without a hitch, they came out great. I still have some tweaking to do to make sure a straight edge will sit flat but I will wait until they are done for that. ...


Prop delamination, RV-6 stuck on cross country, HELP!

Felix (custom) wood prop that is meticulously inspected got me from Denver to Doylstown, PA. Upon inspecting the prop today a few days before heading home, I realised there are several points of what appear to be delamination that may have occurred from the humidity and temperature changes after arriving.

I look at the prop carefully, so the changes must have occurred after or during the 8 hours of flying from Denver.

I'm looking for folks with a prop I can buy to get back home.

It's a o-320 making ~165hp on what is currently a 198mph cruise RV-6.

Again, currently stuck at Doylestown Pennsylvania and looking for a safe way to ferry the plane back to Denver.

Thanks all!


Fun with Numbers ...fbrewer

G loading on RV6...

Reading the discussion about g limits on the RV (let's use an RV6 as the baseline).

Condition 1

Let's say the plane is loaded to its aerobatic weight of 1390.

The airplane has a 180 lbs pilot and 16 gallons of fuel (all in the left tank)

Condition 2

Now the plane is loaded again to its aerobatic weight of 1390.

The airplane has a 100 lbs pilot and 29.3 gallons of fuel (all in the left tank).

Even though the airplane is loaded to the same weight, does condition 2 (100 lbs pilot) put less bending moment on the wing spar than condition 1 (1800 lbs pilot)?


200kt GS Club Entry ...SJordan

200kt GS Club Entry ...BillL RV-7


Status Update: Mothership


RV-14 NEWS and Stocking Stuffers  ...Aircraft Extras

We are NOW accepting orders for our new RV-14 E-Z Out Center Console. This was developed with the help of three different RV-14 builders last month. Thanks to their help, we are able to offer this new product! We intend to start shipping sometime in late January. Please visit our E-Z Out Center Console page to place your order.

Don't forget to purchase our great "No Weld Handles", "Relay Boards", and "Tire Valve Extensions" for your Christmas stockings!

For more details on these two items and more GREAT PRODUCTS, please visit www.aircraftextras.com .


Mr. X Pic

...Salt Lake City.

(click to enlarge)



December 21, 2018. Issue #4,723

Today's awful joke:...Dec is also bad joke month. ;^)
Q: Want to hear a joke about a piece of paper?
A: Trust me you don't… it’s tearable.

[ed. Wishing you and yours a happy, safe and RV-filled weekend!  Note: There will be a Monday Christmas Eve edition.  I'll take Christmas (Tuesday) off, then it's business as usual Wed, Thu and Fri.  v/r,dr]

Milestone: Elevators Done! ...Brantel RV-10

And here they are. All done with the exception of the fairings. These things were the most time consuming so far. Some real brain teasers and tight spaces to work in. New to me construction techniques and the fact that it has two trim tabs made these much more challenging than the RV-7 elevators. Glad to finally get them done and move on to the anticipated TAIL CONE!  ...


DIY Tactile Flap Switch

...seen at Monk's.  Going into an RV-8.  Scrap aluminum repurposed - two minutes on a belt sander and a hole threaded.  Monk and I joked later that a more impressive version would be a Fowler flap that split into two surfaces, but, you know....that would cost a thousand dollars.  Not the five cents this one did <g>.

(click 'em to enlarge to crazy big size)


Motivational Quote ...Jerry Morris

Again, I have to stand back and realize just how fortunate we are that Dick VanGrunsven designed this wonderful group of airplanes.

I departed Chino California yesterday at 6:40 pacific time, pointed the nose east. One leg to Dona Ana NM., just west of El Paso, next leg to Conroe, Tx. just north of Houston, and one long leg to Saint Simons Island Ga. and I’m home 12 hours later. Literally, coast to coast.  1,890 nautical miles.

So if you get a little frustrated, remember this post. RV’s truly are a little magic carpet that literally open up the whole country to us.

Now, get back to work.
Jerry "Widget" Morris
RV 8, N8JL, 2700+ hours


Proof of Enjoyment and a Mod I Liked

...another RV-8 getting some love at Monk's.  I'm drawn to pictures like these for some reason.  Look at the little clear window in the baggage area behind the pax seat for visibly checking the ELT (removed for battery change).  Plexi sheet and some pop rivets.  Genius.

(click 'em to enlarge to crazy big size)


Classic Aero update on RV-14 Side Panels ...VAF advertiser

Hello RV-14 builders,

Just a quick note for anyone wondering about the status of our RV-14 side panels. We are close to having them ready. I expected to have pictures up on the website by now, but we are still making some final changes.

With the end of year holidays right around the corner, I wanted to let everyone know what was up since we will be closed next week to spend some time with our families. I'm sorry for the delay, but we are close though. This is probably the most work we've put into developing a new product. I hope everyone like them.

Merry Christmas, and Happy New Year!
Luke Doughton
Classic Aero Designs


Mr. X Pic



ADSB save - or near enough for me ...Greg Niehues

ADSB save - or near enough for me

This morning I was flying my 9A into KMDD headed to work, talking to Midland approach. They pointed out traffic at my 1 o'clock opposite direction 5 miles and handed me to advisory frequency. I saw the traffic on ADSB but not visually, he was on a parallel course about 1 mile to my right coming at me, about 900 below as I was descending into KMDD. He was not talking to approach and he was not on KMDD advisory frequency.

I was still descending and getting within 300' of his altitude and had not found him visually yet - when I noticed on the ADSB screen he had taken a 90-degree right hand turn and was heading directly for me, less than a mile, just as the Dynon squawk-box hollered "Traffic!". I gave up the visual search and pulled about 2.5 positive G to quickly add several hundred feet between us. I finally caught sight of him just as he crossed under me, we would have had less than 100 yards separation if I had maintained my original course and descent.

I don't know any way to have avoided this, since the other pilot was not talking on the local frequency nor to approach (he was in Class E airspace, so not required) but having the ability to SEE him electronically certainly gave me the situational awareness to avoid a close encounter and possibly worse. I did not have a tail number on my screen so the other aircraft was not ADSB-equipped.
Greg Niehues


200kt GS Club ...Al

Firewalled leaving CYTB yesterday in my 7 with a climb to 3000' and a 21 kt tailwind. Running ROP on a 180 hp O-360, Marvel 10-3878 with the Mooney mod, Sensenich 85" FP and dual mags. Took a little more than 2700 rpm to get there but she did!



December 20, 2018. Issue #4,722

Today's awful joke:...Dec is also bad joke month. ;^)
Q: Cosmetic surgery used to be such a taboo subject.
A: Now you can talk about Botox and nobody raises an eyebrow

RV-8 pass at 52F.  10/28/16.  f/4.8  1/800th.  dr


Converting a GTX-327 from Parallel to Serial Altitude Encoding


I decided to join the 21st Century and change the altitude encoding inputs to my Garmin GTX-327 transponder from parallel to serial, driven by my Dynon D-6. Sadly, six years ago when I had the harness made up for the GTX-327, I didn't instruct the shop to add the shielded pair(?) for the RS-232 serial encoder input to Pin 19. My first plan was to extract the unused wire going to pin (socket, actually) from Pin 20, and move it over to 19. No matter how hard I tried, I was unable to get the pin extractor in the hole, so I gave up and moved on to Plan B. I begged a socket from the FBO and added a new wire.

The wiring diagrams for both the GTX-327 and Dynon D-6 were unclear, especially regarding the shield grounds. The Garmin just showed a ground symbol for the shield, but didn't specify case ground, power ground, or signal ground. I chose signal ground but, in retrospect, I don't think it made any difference. The Garmin schematic didn't show a "return" or "common" wire for the RS-232, so I guess the ground was it. I still don't know if Gamin intended a shielded pair or a single shielded wire for the RS-232 IN. The Dynon schematic didn't show shielded wire at all, but there actually was a shielded pair coming out of the harness. It contained a "return" line for the RS-232. The wire color in the manual was incorrect, but I figured out which wire was which with my Fluke.

Without going into the boring details, I connected the Encoder Out wire from the Dynon to Pin 19 of the GTX-327, and all the shields and the second RS-232 "return"? wire from the Dynon to Power Ground with ~8" #22 pigtails. I programmed the ALTENC setting on the Dynon to "Format 4" for the GTX-327, and on the transponder, set "RS-232 Input CHNL 1" to "Icarus" per the manual. I was as surprised as anybody when it actually worked. Now I guess I'll need to get another transponder check in order to remain legal.

To work on the GTX-327 connector, it must be removed from the backplate with a long, skinny, screwdriver (two Phillips screws). Then the backshield clamp can be removed and the shroud retracted, exposing the back side of the DB-25 connector. Hint: The backshield clamp can NOT be reinstalled with the connector in place. Ask me how I know.

The two black wires are the "power ground" and "signal ground". You can see they are spliced together so apparently it doesn't make much difference. (Ignore the tygon fuel vent passing through the aluminum without a grommet. I'll put the grommet back tomorrow.)  ...


IFR for RV-4? ...Larry DeCamp

Q: Please tolerate my ignorance. I am equipping an RV4 with G3x and all 2020 compiant hardware. Panel space is limited but I thought it would be wise to layout the Avionics “shelf” and panel so IFR is an easy upgrade for the next owner if desired. Garmin suggests a gtn 625 to compliment the G3x because it is not certified IFR. It feels logical to me that one panel (G3x style) wille eventually be the solution.

Do you have any suggestions to satisfy the IFR function with a G3x panel as a starting point ?

A: (Nived17) Ask away regarding Garmin IFR installs. I'm adding a G5 as a backup in a week (it will be installed where the airvent is in this picture) and then the heated pitot in January

A: (Slice) I've been flying with this setup for the last 18 months or so and very happy with it. I also have a Stratus 2S and iPad mini that I had used before the panel upgrade. So with that I have 3 attitude and 4 nav sources(3 gps, 1 VOR/ILS) with the iPad being totally independent. You could get by with the G3X, a nav/com radio and a Stratus and iPad. It's nice to be able to file /G when needed though not to mention more and more GPS approaches showing up all the time at smaller fields.


Ever wonder how bright FlyLED’s are??? ...j-red 6A/8

Well, you can’t look directly at them, that’s for sure!
Got my delux kit from flyboyaccessories, and put them together over about two evenings after the kids went to bed. At least, I would have if three of the LED’s weren’t missing. The guys from flyboys we’re grewt and got them in the mail right away. A few days later they arrived and I can finally take the box of parts and the soldering tools out of the dining room and put them away (much to my wife’s delight!)

Here goes nothing....


Bulkhead Recess F-601K-1fitment ...Aero_Octaveus

Has anyone had issues with the fitment of the Bulkhead Recess F-601K-1.

When I cleco mine onto the bulkhead, the top most #30 holes each side (and the one lower down #40 holes) do not want to align. The recess width seems to be 1/8" narrow overall. Is it possible that maybe Van's didn't get the bend 100% perfect on this one?

(and then after some sleep....)
So sometimes a person just has to laugh at themselves. A good sleep and a fresh perspective is all that was needed. Can you spot what I did wrong? The key word being firewall "recess", not firewall "protrusion"

Now there are at least two members of that club...


Pic from Mr. X

Wasatch Mountains from FL38

(scaled / full size)



December 19, 2018. Issue #4,721

A Preview of the January '19 Wallpaper Calendar

...taken Tuesday standing beside Kay's RV-8A at 52F.   Kay and I were commenting on the large flock of birds looking for morning lift over the hangars on the east side of the airport...

...and that was when we noticed the nearly perfect 22° solar halo around the Sun.  "I should get a picture of that."  About that time we heard the unmistakable sound of an RV on its takeoff roll.  "I hope he sees those birds!"  He did, skirting a little west of centerline on upwind.

Camera out.  RV-related!  Click click.  Fingers crossed.  Success.  Nature, weather, risk and reward all in the shot.

I can put the calendar text there in the dark shade of Phil's hangar.  Happy little accident as Bob Ross would say. 


Milestone: Gas to Noise Converter Update ...Nihon_Ni in Fredericksburg, VA

It's been a while since I've updated this post. We're pretty far into the electrical work and will bond the canopy in a few days, but today we got an early Christmas present:


Question: strange result with a long pop rivet

I need some advise here:

The pop rivet turned to be absolutely hollow , the ball and the pin who supposed to hold it from inside are completely torn out by the rivet gun (seems like uncontrolable process with this kind of rivets). We aware to the fact that this os defenitely reduces the rivet strenght , but how bad is it? May this be acceptable at this specific place ? Moreover , there in an open hole in that place , how bad is that?

The location it happened is the plastic that leads the cable for the rudder control. Here some pictures.


Trolling for Walleyes ...Dbro172 RV-9A

Could have brought my ice auger


Mothership Scoreboard


Shout Out to Iron...RV-3, RV-6, RV-8 and more

...our buddy Paul is building a jet as some of you know, and because the RV-J doesn't exist yet he keeps his updates on his day job site (www.KitPlanes.com).  What floored me was the email he sent today.  "This thing is the closest to a self-building airplane I’ve ever seen. I’ve been working on it for a touch over a month, the engine is installed, and I am down to avionics and wiring."

A month, folks.  Simply outstanding.  Paul, looking fwd to the first flight report here in about 72 hours <g>.  Seriously, knocking it out of park, man!   Impressive!



December 18, 2018. Issue #4,720

Frozen Sunset ...petehowell RV-9A

Interesting haze layer over the Twin Cities as I snuck out of work to fly for day 3 in a row(miracle in December!) I'll crunch claims data later tonight...

Mississippi running thru STP.............


RV-3B Status Report ...David Paule

With the engine mount still at my machinist friend’s house, I made the bulkheads straight and flat. For the firewall, I used a steel carpenter’s square (later changed to a larger one).


Wing walks - a (better?) idea ...Dick Gossen RV-12

There are two problems with the original wing walks: They're too small for my big feet and, the rivets wear through the black anti-skid material (unevenly and ugly-ly) There's a long thread about this by Bob Noffs in here somewhere, where flush rivets are discussed. Too much work!

So I addressed both issues as thus.
1. Wear-thru. I cut the anti-skid stuff into strips to fill in between the rivet rows. Made nice rounded corners, so they look and work great. It's been that way for three years and 400 or so hours with no visible wear or peeling at the edges. I suspect that's partly because the rivet heads take much of the abuse, while the anti-skid anti-skids!
2. Size. I ordered extra wing walk skins from Vans and trimmed them to butt against the originals, roughly doubling the useable area. Now I dont have to worry about passengers with big shoes...and I can sit my lard-..s comfortably on the walk while I'm working on the panel or just fidlin' with the Garmin, without "oil-canning" the wing skin.

Note in the picture the rivet pattern looks like there are supporting half ribs under the added skins, but there are none, of course, since I made this mod after the wings were complete and flying....and dented badly by an enthusiastic but clumsy passenger.
The unsupported double-skins are super strong and support my 200+ lbs easily.
Note also I trimmed the new skins at the rear so as to avoid drilling into the spar caps!

Just an idea....works for me


RV-9?  What am I thinking? ...Rich (Keller, TX)

Howdy y’all. Hoping to get some sound feedback and advice from the good folks here on VAF about this crazy idea I have about building an airplane. Like many that have come before me, I am embarking on this journey having many personal reservations about my ability to even complete such a project, and am further consumed by anxiety and fear that even if I should finish it, that my final product might tarnish the reputation of the manufacturer, and disgrace all the artists who have painstakingly crafted so many of what I consider to be the most beautiful aircraft ever built.

In speaking with other experts in the field (none of whom have actually built an aircraft on their own) the common advice I receive is that I should just buy a plane that is already built, as it will save me time, money, and possibly my marriage. Though likely to be good advice, it is the process and the challenge of building the plane, and the expectation that I will be so intimately familiar with every thread of its fiber that when it is completed it will be part of me, that really has me so excited to take on such an endeavor.

But my primary motivation for building the plane is to share it with others...

Okay, that’s all a bunch of ****. I really want a plane so I can fly up to Arkansas and Colorado to go fishing. There’s no trout in Texas. I need one that’s fast, sips fuel, and can land off pavement, preferably as close to a fish as possible. And I have to look good doing it. It can’t be big enough to take everyone that wants to go, but big enough to take a kid, or a wife, or a dog, or someone who will buy ALL the beer when we get there. But most importantly, it’s got to have room for a Yeti cooler that I can fill with fish!

After months of careful consideration, and houndreds of hours spent here researching, I have finally decided to build the RV-9. I have exactly 1.9 hours of tailwheel time about 17 years ago, so it seems the only logical choice. After all, why not build a plane that I don’t know how to fly when I don’t know how to build a plane in the first place? Makes sense to me!

My questions are very simple and probably will have no answers of opposing opinions:

1. Should I get my head examined befor ordering the kit?
2. I’m planning on ordering the IO-320 with a Catto 3-blade prop. 2nd choice would be the Sensenich GA prop. I really would prefer to keep it simple and light. Am I limiting myself significantly for flying into high density altitude airports/grass strips by avoiding a CS prop? Of the two I listed, would one have any significant benefit to the other? I cannot afford to leave any fish behind!
3. I don’t really intend on landing anywhere too rough, but love flying on grass strips. I was originally going to build a 9A, but have been horrified by all the stories I’ve been hearing and reading about with respect to coming to rest inverted. Has this problem been rectified? Any viable engineering solutions? I’ve finally come to terms with learning to fly a taildragger however, but any input would be appreciated as I would still consider the 9A.
4. Eventually, I want to teach my kids how to fly my plane. Anyone else have any experience teaching kids in the 9? I can barely get these kids interested in driving a car, so I certainly don’t want to overwhelm them in a taildragger when maybe they could get the spark in a 152.
5. Are there any RV groups in the DFW area? Would be nice to meet some nice folks who have similar interests. I could also use the technical and motivational support and my wife would probably like recommendations for a local mental heath provider!

Let the good times roll.


Home Brew Center Console ...KJBSouth

Being frugal I made one out of wood.  ...


200kt GS Club ...RWoodard

My little RV-3 doesn’t have to work too hard to get to 200kts groundspeed. I’ve seen significantly bigger numbers with bigger winds, but wanted to at least get on the board!

This is on the way home from an impromptu trip from KFNL to KSBS. I was at 13,500 feet just west of Estes Park and slightly north of the summit of Trail Ridge Road.

My TAS was 179kts so there was very little wind.


New Kid on the Block ...Joe Reaves (Longview, TX)

Hello everyone. I am building an RV-14A in my shop behind my house in Longview, Texas. I have completed the empennage and am awaiting delivery of my QB fuselage and wings, hopefully the 2nd week of January. I would like to meet someone in the East Texas area who has experience in RV building and could guide me through some of the sticky areas to keep me from making bad mistakes.
I'm not new to aviation, holding Commercial, Instrument and Multi-Engine ratings and have been flying since I was 16 years old, but I am new to experimental aircraft (specifically RV's) building.

Joe Reaves
Longview, TX

RV14A Empennage complete
Arian Lightning LS-1 - Flying … hangered in Gladewater, TX


Push Pull Cable End Help? ...digidocs

I think I understand how this type of push pull cable end works:

...but I'm not sure I've cracked this one yet. How do you assemble it?

And the real question is, which do you recommend for the end of a parking brake cable?



December 17, 2018. Issue #4,719

TX B.C. Squadron Lunch Fly Out to KSEP BBQ 12/15/18

What I initially thought might be Jay, Carol, Sid and me ended up being quite a bit more.  Seems the 'let's take advantage of this weather window' crowd was thinking in parallel.  RVs showed from Tulsa, Oklahoma City, Houston and Austin in addition to some of the locals from DFW. Had a wonderful time catching up with old friends (and meeting some new ones!). A huge thank you to everyone who made the day so much fun!

The plan (straight line) vs how it panned out
(I got distracted looking at sandbars and wind turbines). ;^)

Unofficial greeters Jay and Carol at the top of the day's pics.
(see my pics)


Beautiful Day for BBQ in Texas ...Chris Pratt RV-8

It was one of those days you hope for because they never seem to happen on the days you have free to fly.

It was CAVU in Texas with cool temps that make the airplane perform its best, no turbulence and a bunch of RVers craving barbeque. So the BC Squadron mounted up and met in Stephenville (KSEP) for some Hard 8. It seems as though the entire population of Stephenville had the same idea -- the line was long, but the chatter was fun and the food well worth the wait.

We had at least 15 RVs show up (12 in the photo below but stragglers soon followed. Perhaps Doug will post a later photo). Parking actually became a challenge.

Yep ...scard 9A

Yep ...chipf 9A


Special Delivery ...petehowell 9A

We were going to mail Mom's presents down to South Bend, but the forecast for Saturday looked great and I could take mom to lunch as well!!! It would be a quick trip due to the short daylight, but very doable......

Fog in the Valleys was worth the trip itself!!! Joliet was hard IFR, so I made the bet it would clear before I got there...... I won.......


RV Hangar Space Available at Hicks (T67).....North Texas

While talking with Jay Pratt over lunch, he mentioned he had space for an RV in his hangar at T67.  $350/mo.  So there you go interwebs - there could be worse places to keep your RV <grin>.  Jay's contact info


It was a good day ...airguy 9A

Took my little guy to go see extended family for an early Christmas gathering, and completely tired him out to the point he slept through the flight home, which just never happens. It was definitely a good day.


Don’t get marooned ...Aviaman

What are the likeliest reasons you will be forced to stay somewhere overnight (not including WX)? IMO the 2 biggest causes are flat tires and dead batteries. Can we carry items that give us self sufficiency, where we can fix things quickly?
My idea is to carry a spare wheel assembly, so that no splitting of the existing wheel is required. That greatly simplifies the fix. A jacking method is still required. Jacking on a windy ramp is problematic, so if you carry jacking items, you may still need to move inside of an FBO hangar for an hour. The jacking equipment might be too bulky to carry, and the assistance of an FBO might be needed.
What about the battery? An external power port allowing jump starting will fix the dead battery problem. On my previous RV-6, I fashioned a welding cable and connected it to the battery in the battery box. It was protected with grommets and terminated with a trailer connector. The cable was a few feet long and kept coiled on the floor with a protective boot to preclude a short. A mating cable was also fashioned to connect to a jump starting battery source. Any other ideas or better way to deal with this, or other, out of town problems ?


Status Report #9 ...romanov RV-14A in Israel


Cold Progress ...Tdeman RV-7

It’s been cold out in the hangar, but I’ve tried to keep the progress moving. I built a visqueen box to try and keep some heat in, and some moisture out, hence the change of backdrop! One benefit is it reflects much more light from the sides.

Finally tackled the seat pans. Things not quite being perfectly straight 90 degrees to each other in this area made it difficult to bend single sheets to fit everything for the lowered seat ribs… So a 3-piece seat pan was built because it was easy to make it register well on all surfaces.


Tracker Screengrabs in GoogleEarth ...Vlad

I was playing with our tracker the day we met Tobin. Good times!


3D Printed Tray ...Don Winters (dtw_rv6)

Q: What do you do when the used GNS420 you bought didn't come with a tray?

A: Print one!  I'll fabricate the metal tube to support the front end and rivet it to this ABS housing. The connectors were over $100 for the pair. All in for plastic and sheet metal - ~$20. Of course, I spent the better part of Saturday modelling the housing in Solidworks.


Status Report ...Jereme Carne RV-7A



December 13, 2018. Issue #4,717

Sandbars at the Red River N. of KGLE 12/12.
Rains and high wind arrive Thursday.  dr


Mr. Robert Anglin ...Rest in Peace

(Bill E.) To all who know or have met Robert Anglin, RV8A and frequent poster on VAF, he passed away yesterday evening while working on his aircraft in his hangar at 8A7. I know Robert was well known in the Houston Texas area, and he had relocated here to NC in retirement a few years ago. He completed his RV8A about 2 years ago, and has been one of those guys that came out to the airport almost every day, rain or shine to fly or work on his RV. He was a man with driven passion for this great hobby and the friendships that go along with it...Robert will be missed by our 8A7 community, and those who knew him. Arrangements have not been disclosed at this time... Praying for his family.

[ed. If and when I hear funeral arrangements I'll pass them along.  To the family and friends of Mr. Anglin please accept Susie and my deepest condolences.  dr]


Update to Nigel's 'T/O Config Effect on T/O Distance' Thread ...Bill RV-7

Dust off this excellent and useful thread

I have to belatedly say thanks to Nigel for this data. I am finally getting some more accurate data for my RV7 POH and want to see what was available.

I have 180 hp with the Hartzell composite - the wide blade one. I tried the lift the tail on a cool day , 34F, and got about 450 ft for lift off. The G3X data was used to calculate the position and speeds. VS defined the lift off point.

450' seems high compared to Vans (275) and my estimated weight was 1480 lbs, so it was not heavy. I could probably make a little more RPM on brakes and certainly use the tail low lift off technique for slightly reduced roll. Maybe higher tire pressure will help too. Cold tires rolling drag coefficient can not be good.

I really appreciate the detail Nigel has provided, it will shorten the test work.

One snag is the accuracy of the WAAS gps data, but way better than the next best and it is really easy.

One last thing, if anyone has governing equations to make a definitive correction of TO roll and climb to different temp, altitude conditions, please post or send an email.


Control column installation and bearing stiffness (RV-14)


Scott - I owe you a beer. Just a light tap on the side loosened it right up! It did take another few hours of playing with shims to get it perfect however I think it is worth it. Just as a side note - I did remove the entire control rod and used a bolt with washers directly on each bearing. With this setup I was able to use my 24" socket extension to tap directly onto the bearing. I did this on both sides and it magically opened up. Hindsight: I wouldn't prime between the bearing brackets, BoeLube before installing the bearing into the bracket, and squeeze slowly on each rivet before the final set.

Building on.........


Update on Wheel Pant Fitting ...Bill Boyd RV-10

Went back to the shop last night and tried on a pant after the reinforcing plies of fiberglass around the preliminary mounting holes had cured 24 hours. Rechecked Plumb Bob and all his buddies. I was astonished to see that only one of the six holes in the pant were anywhere within 3/16" of where they needed to be to line up with the holes in the bracket. I lay there on the floor beside the main wheel and tried to wrap my head around any possible explanation. A shift of the pant to align more of the holes was physically impossible due to the size of the existing cutouts for the tire and leg, as well as the fixation imposed by the bolt in the axle nut extension.

In the end, I re-drilled 5 of the holes using the Christmas lights on a stick trick someone mentioned here for back-lighting. That was a life saver of a trick. I am unable to explain the misaligned holes, being confident of the pains taken to realign everything exactly as it was before, but I would recommend an alternate technique: drilling the holes in the brackets first, then installing and aligning the pants, then back-lighting the holes and marking/drilling the pants based on the light spot as a reference. Aiming for an ink mark through the semitransparent wheel pant into an angled bracket ear introduces some considerable potential for error, at least in my case.

I plan to follow the recommended procedure for final fitment using 6-32 screws and mold release. This will have to wait till after the kids and grandkids come to visit this weekend. Family first!!!

One Other Thing (Bill)
I believe Scott's caution about the screws vs clecos applies only to the common spring-type, which would deform the pant unacceptably.

I realized too late after drilling the #36 holes that, as a SilPruf window installation veteran, I had a good supply of a cleco type that might just avoid this issue - as well as the need to tap all those temporary holes in the brackets. Probably won't be able to use these now that the holes are 4 drill number sizes too large for them - my bad. Might help someone else who has wing-nut clecos in their shop, though.


Brantel Checks In (RV-10)

Still working on it!

I promise that you will see a pic of some finished elevators soon!

With work, holidays, business trips, visiting colleges, sickness and the other priorities, it seems to be taking forever to finish my elevators.

I am building both at once. I am now working on the trim tabs. The rest is done less the fairings. Hopefully you will see another pic of some finished parts soon!

So far the elevators have been the most time consuming and brain teasing part of the build. The way these go together requires some thinking to keep it all going together correctly. Add in the complexity of the riveted trailing edge, foam ribs/pro-seal and trim tabs on both sides makes these much more of a challenge than my RV-7's elevators.

Another thing I have noticed is that Van's has really cut back on the hardware provided with this kit compared to my 7. Seems like they sent enough hardware to build 2 airplanes (rivets, nutplates, pop-rivets) on my 7 but with this 10 I have been very short on a few rivet sizes and have had just enough of the pop rivets. They went from way too much to just enough and in some cases not enough. Somewhere in the middle would have been nice.... Good thing I have spare rivets on hand!

Check out my build blog for the details on my build. Over 8,100 page views so far! Thanks for looking!


Removing really old sheet metal protective film ...Zazoos

So my wings were built in the 90's and the sheet metal was wrapped with some white film. I am struggling with removing some of it. I have tried MEK, Acetone, Brake Clean, Goo Gone, Kerosene, Shopline JT501, and Aircraft Paint Remover. Nothing touches this stuff. I even took a 3m Scotch Brite Pad to remove the white backing to expose the adhesive layer and the solvents still will not remove it.

I can Scotch Brite it all the way but would prefer a chemical method.



RV-7 Tail Repurposed ...Weasel

One-Off Experimental Cub. Fuselage started as Back Country but heavily modified. Wings are on-off metal design by Warren Arter, previous builds included RV-6, RV-8, RV-7a, RV-10, Double Eagle, and Carbon Cub. Fuel in leading edge of wing - 40 gal total, RV-7 tail pieces, All pushrod controls, Carbon Cub cowling, Lycoming 150 HP. I like it if ya cant tell...



December 12, 2018. Issue #4,716
  This site is how our family eats and we would like to keep doing that.  It's donation month here, so if you’re a daily reader, aren’t exempt, haven’t donated yet in 2018 and would like to see this site stay afloat….it’s time to make it hap'n cap'n.  I'm going to post a joke each M-F this month. If you don’t donate, the jokes are going to get more and more cornball - so consider yourself warned ;^).
  I'm not sending out thousands of emails...just this little note here for a few weeks - you get bugged enough in other aspects of your life.  Thank you to those who help keep this site online. (how to donate / am I exempt?)

Today's awful joke:
Q: What do you call a boomerang that won’t come back?
A: A stick 

[ed. Our credit card got hacked last Saturday, so we've been operating off cash since then up to late Tuesday afternoon, when the replacement card showed up.  That and updating all the things that get auto-paid (like these domain names and server rentals) is a process as many of you know.  Insert expletive here...  Ugh.
  I've been needing a gas run up at KGLE but have held off due to no card for the pump.  I know....first world problem.  Still a bit of a pain in the arse.
  I've been wanting to fly up to KGLE because of some WWII POW info I found online Saturday morning.  Just north of the Gainesville airport was Camp Howze, and there is easily seen remains of the camp from a wide base to RWY 17.  Maybe Wednesday Wx permitting...
Map of camp / Googlemap today / More info on the camp. ]

A Letter from a Former POW

Subject: Your Camp Howze story and pix
To Sarah Reveley

"I stumbled onto your pictures and story concerning the German POW camp at Camp Howze. Thanks for bringing back memories.

I was one of those POW’s at the camp from Mar 45 to Spring of 46. There were 3 compounds for the prisoners, all next to each other. Most of us worked on area farms, I had the fortune of working at the Camp Howze laundry plant. In the Spring of 46 we were shipped home, which turned out to be a journey to England where we had to work for another few years as POW’s for the Brits.

In the mid 50’s, I with my family emigrated to the US. I had opportunity to visit Camp Howze (or what was left of it) in the early 70’s during a trip to Dallas. At that time I met with and talked to a farmer who had built his homestead where the camp was located before. He told me that I was the first and only former POW he knew of that ever came back. Thanks again for your story and your pictures." - Wolf Weber, February 15, 2011


Coffee is Served ...Maxrate RV-7

Now that the turkey is all gone and the family is back to their routine I had some time to finish the cup holder cover. It turned out very functional indeed! Next I plan on using some micro fill to get the top and sides smooth and wrap it in the same light weight synthetic leather as the rest of the interior. Then glue in the plastic cup holders from the underside. In all the added weight was only a few ounces and I was able to make use of that dang flap skin that I messed up during the wing build.  ...


Sydney's Airway Victor 1 ...newt

Sunday: Lovely morning. I have a guest from Europe. We've organized a posse, so let's go flying.

Lead: Glenn in VH-VNZ.
#2: Mal in VH-DWC.
#3: Me in VH-SOL.

Our journey starts at Long Reef. Passes Curl Curl, Manly Beach, and North Head.

Then South Head, the cliffs around Bondi Beach, Bronte Beach, and fades to black at Clovelly near Maroubra.

In the background you can see Chatswood, North Sydney, a pair of Manly Ferries making their way across the harbour, The silhouette of downtown Sydney, the Sydney Opera House and the Sydney Harbour Bridge.

Airway Victor 1 is the dotted purple line on the chart below. Easily one of the world's most scenic charted VFR routes.

As usual, every time I do this I have difficulty suppressing astonishment over the fact that something this much fun is legal.


D180 Trim Calibration Issue Solved ...bobg56

Problem solved, it was a wire in the tail cone that was loose at the wire block...it was the excitation wire. Re secured it and tie wrapped the wires securely. The thing that gets me is that I was certain it was the update that did it since it worked fine before, some coincidence, now I'm going to go dance in the street to celebrate, I flew for about 1.5 hours today and everything was ship shape...nice!


Status Report ...Bill Boyd

Say hello to my little friend Bob. Plumb Bob.

Cutting and fitting to reference points in thin air. Don't. let. anything. shift. Drill through fiberglass into landmarks you can barely see - at an angle. This may be the part of the story where I jump off a bridge.

Not sure; those that have gone before say the cowling will also be... "interesting."


Shear clip 09-10 ...HAL Pilot RV-14

Q: Aloha All.  Fig 1 step 1, on 09-10 tells us to dimple the E-1022 Shear clip.

I just can not find where it tells us to dimple the corresponding close out tab holes, and at what point those holes are riveted.

Thanks so much for your help

A: (smash) I dimpled those holes. They get flush riveted so they won't interfere with the trim tab.



December 11, 2018. Issue #4,715

Dad?...........Help? ...petehowell RV-9A

Kate called last night - Finals this week and she misses her Dad, and oh BTW, her towel rack is broken, and the sink won't seal, and lunch would be great!

OK, I'm a sucker, and the weather was finally good in the upper midwest, and you know, I'd get to fly.

Bernie provided wingman duties up till the Iowa border, where he broke off to return to Anoka. The sky was clear and the heartland shimmered with a dusting of snow.  ...


RV-7A Re-Birthing Status Report ...kentlik

Finished the recent stunt project and we are off!  Looks like I left off on the brake lines...But will need to make another flap motor part as well, I do not like this one and I have a new one in the kit I bought.  Finished the recent stunt project and we are off!   Looks like I left off on the brake lines...But will need to make another flap motor part as well, I do not like this one and I have a new one in the kit I bought.


Clogged Injector? ...istrumit

Hello all -

A few minutes from landing on a flight a few weeks ago, I felt a very, very subtle change in engine vibration, so I had a quick look and noticed the CHT on #3 cylinder (IO540) had risen about 15 degrees and was suddenly the hottest cylinder (I was descending at medium power).

I fiddled with mixture and nothing improved (or got worse).

And i watched as the temperature continued to gradually rise by about 5 degrees until I was within range to reduce power and land, at which time it fell back in line with the rest of the cylinders.

At no time did the cylinder actually fail to fire, but it did seem 'unhealthy'.

I pulled the data from my monitor and I found that, just after beginning my descent, #3 started to rise and #4 started to fall, both abnormally (compared to data from other flights).

I inspected the injectors for #3 and #4 and saw nothing obviously wrong. I used cleaner on them anyway.

Test run was good. And I test flew it again today.

Everything seemed normal during test, until I saw that #4 had gotten unusually cool again.

Landed..ran it up....tested the leaning process...all normal.

Took off again...all normal, but I decided to postpone my 1.5 hour trip until I figure this out.

So, currently, I have a normal running engine that seems to have fluctuating temperature previously in 3 and 4, but now, just #4.

I also tightened the intake on all cylinders (to account for induction leaks).

Bottom line...I'm stumped.

The engine runs fine. Starts fine.

But, I want to understand this anomaly.

Ideas ?

Scott Martin
N430WP RV-10 - Purchased


Pic request - Fairings-Etc tail fairing install on RV-7/8 ...Dave Setser

Q: Fellow Fairings-Etc tail fairing customers, would you share pictures of your fairing installation, especially the lower fairings? I'm particularly interested in how you attached the lower fairing to the fuse and whether you installed any fasteners to the underside of the HS.

......Any new info would be much appreciated!




Ask Mel

Q: If loops, rolls, or spins are not documented during phase 1, does that mean they are not authorized in that plane? If so, can they be added later, and how?

A: Any aerobatic maneuvers to be flown must first be tested within phase I. You may place the aircraft back into phase I for a minimum of 5 hours at any time.  This is listed in the operating limitations issued for the aircraft.  Depending on when you op lims were issued, you may have to have them amended. Earlier versions of op lims had the option to be issued to allow or not allow aerobatics. If you op lims state that aerobatics are prohibited, then you must have them amended.


Trailing edge wedge countersinking ...Girraf

Well after a lot of research, I started to countersink my Rudder trailing edge wedge yesterday morning (AEX wedge). I had been struggling with how to reconcile the fact that the hole I drilled through the wedge (and skins) when match drilling was perpendicular to the centerline of the wedge, yet the countersink should be perpendicular to the face of the wedge on each side. If using a pilot cutter in your countersink cage, this will most certaily apply a side load to the little pilot on the countersink cutter. Sure enough, after 10 or so holes, I ended up breaking the pilot off my bit. (#*@&!)

I recalled that on the my practice kit, I countersunk the wedge using a speed deburring tool, which is essentially a countersink cutter with no pilot. Turns out you can create the necessary c'sink with the deburr tool very effectively, if you apply some elbow grease. I then decided to disasseble my c'sink cage and mount the deburring bit in the holder and free hand the process using a drill. If your easy on the trigger and careful (check depth often), you can make great countersinks and my end result was fantastic. I did have to install the wedge into the rudder twice and check for proper nesting of dimples as some needed to go slightly deeper but I was able to finish the job while I wait for a new c'sink cutter to arrive (went with single flute this time).

All this to say, don't be afraid to try something a little different!


Pic from Mr. X

...San Anontio, TX



December 10, 2018. Issue #4,714

Status Update #8 ...romanov in Israel


Two new AviationNation pilots!

Two of our students from the North Vernon project passed their PPL check ride today. Very proud of Thomas and Kyle for their dedication, efforts, and hard work. We will have a few more from that group either this year or early next.

Bob Kelly, Scipio, Indiana
Tech Counselor
Founder, Eagle's Nest Projects
President, AviationNation, Inc
RV-9A N908BL, Flying


1,500th RV-8 Flies….mothership

The 1,500th RV-8 has flown! Congrats to Baron Marshall and family on the first flight of N762BM

Subject: RV-8 N762BM first flight 4 Dec 18
Date sent: Friday, December 07, 2018

Hey folks,

Just wanted to say that after 14 year 6 months and 22 days, as well as, 7 moves....I finally know the RV grin! N762BM (RV-8) "Russian Bare" took to the skies with ease. Her 200hp IO-360-A1A (shoehorned into a James Cowl) powered us through 180kts true @ 5000'. I can't wait to see how she does with the gear and wheel fairings on! All in all a benchmark day with friends and family to cheer us on. I could not have made it through this journey without them....thank you all!! Special thanks to my Bride for all the patience and love shown through some frustrating and fun moments!

Empty weight: 1136
Engine: IO-360-A1A
Prop: Hartzell 72" blended airfoil CS
Special features:
James Cowl and plenum
Dynon Skyview
Seat Heaters...lol

Thanks again to the Van's team,
Baron Marshall


The Skew-T and extreme turbulence ...scottd

If you are not a Skew-T fanatic, you should be. Here's an excellent example of what the Skew-T can do for you. Take a look at this Skew-T analysis from 15Z in southeastern NC.

Notice at about 6,500 ft MSL, the winds are from the southeast at 58 knots and then around 9,300 feet, they are from the southwest at 57 knots. This is an excellent example of directional shear in the wind aloft. The key though is the moist unstable layer that starts just below 8,000 feet that enables the air to mix. All of this coupled together is the reason this pilot reported extreme turbulence at 8,000 feet MSL.  continue


Steve Thorne Vblog Visit to Van's ...'Flightchops'

Part 1 ...24min.  Part 2...18min


Operation Good Cheer ...terrykohler post

Yesterday, nearly 300 aircraft of all types and sizes took to the sky out of Pontiac International Airport to deliver nearly 20,000 Christmas presents to about 7,000 foster children throughout the state of Michigan.

A massive undertaking with hundreds of volunteers wrapping gifts into the early hours, manning numerous loading stations across the tarmac, handling pilot registrations, mission assignments, and pilot instructions.

This year featured a NOTAM 20+ pages long and the designation of the airspace around PTK as DC SFRA (yeah, just like Washington DC). Planes were staged according to capability (instrument, FIKI, non-instrument, can you carry bicycles?) and everyone was assigned a discrete transponder code, even if you chose not to file.

Amazing effort and coordination by so many people working behind the scenes. Flying was the easy part.

Buddy Ted Gauthier flew wing with his RV-6 as we managed to stay VFR at about 1500 AGL going across the state. We were met at Big Rapids airport by another group of kids and volunteers who formed a “bucket brigade” to help offload the planes while hot coffee and food waited for us inside.

Flying back into PTK, our ADSB looked a bit like Oshkosh arrival. Ever have one of those days when you feel blessed to be able to fly? Yup, in so many ways.

Terry, CFI



December 7, 2018. Issue #4,713
  Wishing you and yours a happy, safe and RV-filled weekend.

Trip Canceled to New Adventure ...tcard RV-9A

You may remember Crazy Marti from my trip write up for Lajitas and Big Bend. Well, she struck again. Her family was getting together in Kentucky for Thanksgiving and she asked if I might be up for a road (or is that air) trip. I did want to spend Thanksgiving Day with my hubby, so we made plans for a Friday/Saturday trip - weather permitting, of course. Long story short, the weather did not cooperate outside of Texas so I reluctantly canceled.


Where is the sun? ...Paul K RV-7

It's been a really long time without seeing any sun so when a small hole opens in the clouds with blue sky above.... If you don't live in Michigan, you wouldn't understand!  ...


T-hangar for rent at my home field (52F) ...N.TX

$375. Lights, your power expense, no water.  NW corner.  Contact: Bill Goeken. wk.goeken ‘at’ verizon ‘dot’ net and/or (817)ThreeZeroEight-1916.  Tell him Doug sent you…. 


Announcing Lightning Formation Airshows ...AX-O

VAF Family,
I would like to share some exciting news. A group of pilots that have been flying airshows in our RVs around the U.S. and Canada for the past several years have formed a new team. Our name is Lightning Formation Airshows. Some of the teammates frequent the VAF pages and will share the adventure with you.

As we embark on this new journey, we have teamed up with Lightspeed Aviation. This teaming is a great fit as Lightspeed Aviation and our values/goals are very closely aligned. We both place importance on high ethical standards and creating a culture where folks feel valued, vested, and heard. We also feel very passionate about aviation and promoting its growth.

Follow along and be part of our journey. We are looking forward to the 2019 season!  continue


New RV-3B ...andrejv

Just finished an RV3B - VH-VIJ. I now have 16 hours. IO-320, Christenson inverted oil, Smoking Aeroplanes smoke, Harmon turteldeck, ground adjustable Sensenich prop. Lots of fun to fly, but I still love my 10!  vid flyby


This is what five years of forum new registrations looks like

(9,620 registrations in 2,165 days).

Outlook looks promising for the VAF Brain Trust. Chart here shows new VAF Forum registrations totaled for the last five years - plotted cumulatively by day. Starting 1/1/13 and added to the previous day’s total up through 11/30/18. Averaging 135 per month for the past 59 months.

Linear, uniform growth. Maybe an indicator of the health of the RV hobby - maybe not. I tend to think it is. And thanks for joining in the RV conversation!

New Kid on the Block ...DeeCee 57 in Zurich

"...picked up and repositioned my new toy on Dec 1st... early Xmas present this year."


52F News...my home field

"...On Tuesday, commissioners voted to spend $2.9 million of county funds to enable the town of Northlake to shut down the road and re-route it as part of Northlake’s long-term development plan. The project, which is expected to be completed in a year and a half, will make Cleveland Gibbs Rd a town road instead of a county road, officials said."  read article


Is your 'other plane' a bush plane? ...a poll I started for Jaybird

As an addendum to my 'Would you build an RV-Super Cub?' document that I'm gathering signatures for to see if there is interest, my friend Jay Pratt told me today another of our local RV circle has began construction of a Rans S-21 bush plane (Don C). Jay asked what I thought about a poll regarding people who own a 2nd airplane. Sounds like a good idea. Hoping to see if it's 1% or 5%, or more....

Here is the question:

*IF* you are building or fly an RV AND *IF* you own an additional plane, is that additional plane (or one of the additional planes if you own more) what would be considered a 'bush plane'? A J-3 or a Champ would be an example...as would a C170/C180.

If you're flying an RV and building a bush plane that would be a yes. Same in reverse....flying a bush plane and building an RV.

Yes or no?   Vote here

[ed. Update: After a day of voting and around a hundred votes, the percentage of RV owners that also own a bush plane is much higher than I would have guessed.  v/r,dr]



December 6, 2018. Issue #4,712


22 years ago today this site started out as the 'North Texas Wing' of Van's Air Force.  I hope you're pleased with what it morphed into over the past two decades. 


I Forgot My Airplane's BDay ...crabandy

I totally forgot until FB reminded me of my most liked post from 5 years ago today......When my project became and airplane. It's a crappy pic of a pic but my FAA DAR handing over the goods when he couldn't find a reason not to.  Like I said I didn't know about "her" birthday, it just so happened to be my day off. What should a guy do on his day off even if it is a tad bit chilly? The previous snow in front of the hangar has melted and more snow in the forecast for later in the week so might as well take advantage of the 2000' OVC with flurries and warm up the oil! Besides my copilot hasn't flown for 2 weeks and he's been feeling the need for speed.  ...


Is your 'other plane' a bush plane? ...a poll I started for Jaybird

As an addendum to my 'Would you build an RV-Super Cub?' document that I'm gathering signatures for to see if there is interest, my friend Jay Pratt told me today another of our local RV circle has began construction of a Rans S-21 bush plane (Don C). Jay asked what I thought about a poll regarding people who own a 2nd airplane. Sounds like a good idea. Hoping to see if it's 1% or 5%, or more....

Here is the question:

*IF* you are building or fly an RV AND *IF* you own an additional plane, is that additional plane (or one of the additional planes if you own more) what would be considered a 'bush plane'? A J-3 or a Champ would be an example...as would a C170/C180.

If you're flying an RV and building a bush plane that would be a yes. Same in reverse....flying a bush plane and building an RV.

Yes or no?   Vote here


G3X non touch TO/GA

Q: Need help with dual G3X 370/375 and garmin 430W with 305 autopilot installation of TO/GA button. I have a GSU73 with the ability to use Discrete 1,2,3,or 4. What type switch or button is used and will the 430W couple to fly the missed approach? Thanks in advance

A: (g3xpert)  Page 28-4 of the Rev. AG G3X installation manual shows how to wire a TO/GA button to a GSU 73 and GTN.

Note that the GNS 4XXW/5XXW units don't support an external Go Around button like the GTN 6XX/7XX, but you can still wire the TO/GA button into the GSU 73 to trigger TO and GA modes on the G3X.

You will have to manually activate the missed approach on your GNS 430W just like you do now since it doesn't support the remote button. The 430W will still provide guidance and let you couple to the missed approach just like a GTN after you activate the missed approach on the 430W.


Question- maximum trimmer angle move ...romanov

Hi Guys,

I didn't find any info in the specs so will ask you expirienced fellows: is that trimmer move looks good to you?  Does anybody has an info about the angle the trimmer should go?


A Film - "In the moment"

One of my R/C buddies is in his final year of a Media Studies degree (at Manchester). He got an assignment to produce a film titled "in the moment" and asked if I'd help him out.

Mainly my Pitts in the video, but there's a couple of RV's in there - A '7 that belongs to the airfield owner (200hp and a C/S MT = goes like stink !), and a '6 recently arrived as a long term resident. We have 715m on the one runway (21/03) and a few fairly unusual hazards (A river and, a church and a mansion). But it's a great place to fly from and fairly typical of a "farm strip" here in the UK.

Anyway, here's the result, hope you like it


Welcome Josh Pava ...new guy chimes in

I am considering purchasing an RV-6A for a 420 NM trip, each way, about 3x per month. I’d fly it day VFR only.

Can I get some feedback/opinions as to the suitability of the airplane for this type of trip? I’m 5’10”, 180 LBS, AND 32” inseam. How about comfort for the roughly 3 hours aloft that this trip would take? How much storage space for a suitcase will I find in an RV-6A?

Any RV-6A owners in SoCal that might be willing to talk to me, or take me up for a ride in theirs? Also I’d be up for any leads on aircraft that you may know of that would fit what I’m looking for.

Many thanks!



December 5, 2018. Issue #4,711

Seen Tuesday at 52F.

Let's see, Monkey found what turned out to be a burnt valve in a 7A (failed compression check).  Getting some love up at Sal's most likely as I type this.

(full size)

I helped him update an RV-8's Dynon EFIS and EMS units to the latest software version (to recognize newly installed oil and fuel pressure sensors).....

(full size)

John Platner (newly minted Private Pilot extraordinaire) was getting in some more RV time with CFI Dad Gary in the back.  John solo'd the RV yesterday.  Two videos....the sound on the takeoff is ringtone-worthy.  Stuck the wheel landing like a old RV pro.

Great takeoff...

Great landing...

Back home at noon for an afternoon of work.  Productive day....  Wednesday is the last good flying day for a few days here.  I might try to get off the surface for a bit and practice a commercial maneuver or two if I can.


Mothership Teases

"....There very well may be three tickets that we stuffed in calendars that have considerably more value than the rest...    Possibly something along the lines of another tail/emp kit discount ticket..."


And Posted Today

FMI: Order a $5 calendar (s/h included cont. USA). 
All the cool kids are doing it.


RV-8 Rudder Build Critique?

I continue to finish empennage components. I gotta a few concerns about my workmanship. Take a look and let me know if there are any issues. Thank you.

1) Rudder bend - It's not pretty, but would it cause any issues down the road?
2) The R-809 (fiberglass tip) does not seat with as close a tolerance to the R-713 (counter balance skin) and R-801PP (rudder skin) as I have viewed finished aircraft. Should I be concerned with these or keep building?  more pics


Help build an Eagle's Nest RV-12 ...brad_walton

A friend asked me to post this for him. We need volunteers to help with construction:

To The RV Builders in the Houston Area,

My name is Thomas Stein and I am a long-time pilot and flight instructor in the Houston area, and the Construction Foreman with the Alief Independent School District.

Alief ISD would like to partner with Eagle’s Nest Foundation and have some of our students build a Vans RV-12 at one of our high schools. One of the requirements of the Foundation is that we have homebuilders with RV experienced overseeing and mentoring the students as they work on this project. The STEM teacher that is leading the project is named Steward Bailey and he is a certified A & P mechanic, and will be there throughout the construction. The aircraft will be assembled at the Elsik High School, located near the intersection of Dairy-Ashford Drive and the West Park Tollway, in southwest Houston. Eagle’s Nest will supply the materials, and all the tools will be provided, but they would like a minimum of four (4) experienced RV builders to be involved to mentors to the students. With enough volunteers, it may mean a commitment of around 1-2 hours per person, every couple of weeks, throughout the school year.

Alief is predominately a low income school district, and most of the kids would never have the opportunity to experience aviation if not for projects like this. We at Alief think that this is not just an opportunity for some young people to build an airplane, but to also learn meaningful academic subjects, as well as lessons in personal enrichment. If you ever wanted to share your skills and expand the great community that we call “Aviation”, this is your chance. What we need is your time and talent, as well as your hands and your hearts.

Mr. Steward Bailey can be emailed directly at Steward.Bailey 'at' aliefisd.net, or you may contact me on my district cell phone at (281) 808-2293 during school hours, or at tommy.stein 'at' aliefisd.net. If you love to build and want to help lift up some worthy kids in the process, this is your chance. We really need your participation.

Thomas Stein, CFI


Chart question ...rvdave

Hey all, have a question regarding a local ils chart in my area with what looks like an acronym that I or no one I’ve asked has an explanation. It’s CFBTW on this ils approach into tvc. Any takers on an answer?


RV-3 Brake Fluid Hemorrhage ...swjohnsey / oaklandaviator

Q: I am the proud new owner of an RV-3 #190/10190 N93JP. It has a brake fluid hemorrhage. I still have brakes so it must be somewhere between the firewall mounted reservoir and the master cylinder on the right side. It has fuselage mounted 24 gallon fuel tank. Will I have to pull the fuel tank to gain access to the brake line. What do I need to replace it with? The current line is some sort of plastic/nylon.

A: What an interesting coincidence in that my wife's RV-3 just had this exact problem. We would get to the airport and a puddle of brake fluid would be under the center of the plane dripping from the fuel vent. To get behind the firewall required removing the upper skin and windshield (hers is a slider), then remove the fuel tank. Once that's out everything is easy to see and work on. Hers had a loose tee fitting on the back of the reservoir so we just resealed it and tightened it up then bled the system.

To remove the tank, once the skin and windshield are off, you'll need to drain the tank completely, remove the vent line from the front of the tank between it and the firewall, then remove the fuel feed line at the bottom rear of the tank (unless you have an inverted fuel system with a flop tube, which we installed on my wife's plane. In this case the fuel line is located at the front bottom of the tank and will probably require you to lift the tank up and have a helper loosen the line.) Tank should just lift right out. To reinstall, loosen the tank straps slightly to make it easier to get the screws started on the upper skin. You'll have to sit in the seat when it's all back together, reach under the tank, and tighten them back up. They pull the tank up against the skin.

Do any other needed maintenance under there while the tank is out. It's not that hard, but I don't like pulling it unless really necessary. There's great access to everything up front with it out so take the opportunity to look over everything really well. It's a great time to rebuild or replace the brake master cylinders, tidy up wiring, or install any cool avionics. Very easy to get to everything.


Partial Alternator Fauilure at 245 Hours ...Colin RV-10

Thanks to this thread I have determined what is wrong with my transponder, or battery, or VPX Pro...nothing!!! The PP 60 amp alternator that was standard in the RV-10 FWF kit had a partial failure.

For the last 6 months or so the Dynon transponder would trip at random times during nearly every flight. I thought it may have been because of a software update that was done around the same time that would cause the transponder to momentarily draw more current than the 3 amp VPX circuit would allow. I changed it to a 5 amp circuit and the problem persisted. I brought up the VPX page on the AFS EFIS and once saw 37 amps reported on the transponder circuit, ridiculous considering the 20 awg power wires would have become a fusible link at that point but they were fine. With the engine running the voltage was solid at 14.2 and the amps reading looked normal giving me no reason to suspect the alternator.

Then my ETX1200 battery light started constantly flashing. I would charge it on the ground, go flying for a couple hours and by the time I got home the light was flashing again. Obviously a problem with the battery right? Not cool for a very expensive battery that was under 2 years old.

So I pulled the battery and sent it to EarthX last week, installed a PC680 so I wasn't grounded. The next flight the problem with the transponder became constant. I reset it and it would immediately trip. I guess the EarthX battery was providing some masking of the problem.

So then I found this thread. Today I removed the fairly young Plane power alternator and took it to an alternator shop. They tested it and it showed a problem. They took it apart and found one stator wire broken off that also took out a portion of the rectifier. It is currently still at the shop and they are trying to repair it. The stator is a uni-point part and apparently difficult to find in the aftermarket.

There are no problems with the bearings. For a background on my plane the prop was balanced to .03 IPS before first flight 2 years ago and was checked at the same during the 2 subsequent annual inspections (I have a smart avionics PB3 dynamic balancer). The belt was also torqued properly so neither of those were causes of this failure.

If the lifespan of a PP alternator is somewhere around 200 hours I think I need to look for a different product. Maybe an automotive unit would be better since they would be easy to source just about anywhere. The alternator shop showed me a 14757 that is mentioned elsewhere in the forums but it is larger and heavier than the PP. I'm open to other suggestions.



December 4, 2018. Issue #4,710

Gas run to KSWI ($3.55).


Mountain SW Advice ...JD (RV-4)

Living in the subject area, my advice is to fly early when the lighting is best and the air is smoothest. Flying over in the afternoon at 14k will cause you to miss the sights and the beauty. With good, early morning light, the colors come alive!

If not familiar with the effect of density altitude, please brush up. Most of the ground in this area is higher than the typical pilot cruises. Takeoff and landing at 11,000' DA is different. Cruising at 8,000' and skimming the ground is unnerving if not prepared.

Watch the winds aloft at 18k. That will tell you how rough it will be over the mountains. If the winds at that altitude are high (40kts), expect rough.

Depending on what you want to see and do, the whole area is a huge playground. Monument valley is neat but, sadly, it is a tiny little place (when going 150 kts). Be sure to see Canyonlands, Bryce Canyon (you can land at the airport and get a shuttle to the park to walk the canyon trail), Comb Ridge, Goosenecks, Capital Reef, Meteor Crater, Gila Wilderness area, etc.

If I were flying CNM to PGA and the weather/winds aloft are good, I'd fly west towards LRU to get around White Sands to the south. Then head direct to PGA or Monument Valley. This will take you over the continental divide and some great sights. If you want to see the lava flows and chain of craters, head towards GNT. If you want to see Shiprock, LRU direct to 5V5.

Another great option (for sights) is LRU to JTC (Springerville) to SEZ (Sedona) and then to PGA. There are also some really great backcountry strips available if looking to camp or do that kind of sightseeing.

The only real problem is that this is a MASSIVE area making it hard to see it all in one trip!


UK RV-6 Aerobatics Approval ...Towline

We've just had aerobatics approval through for our RV-6 from the UK LAA. As I couldn't find a lot online to help in the process, I've condensed our experience into a short blog article here that others may hopefully find useful.

The process has seemed fairly straight forward despite looking quite arduous to this pair of amateurs.

We're non-inverted and I've been told to avoid vertical rolls as they can empty a lot of oil, also stall turns will use around half a quart.

Any advice on -6 aerobatics would be great.


What Phase I Looks Like ...bkervaski

Here is what Phase I looks like on a Garmin G3X ... just in case anyone was wondering .  Now if I can just figure out how to clear the tracks so I can see the map again


The Windy.com App

Saturday morning I was planning on being part of a formation practice (RWY 17).  While fiddling with various weather apps I stumbled across 'Windy.com'.  Download the app for free for iOS HERE if bored.  The app showed pretty convincingly I'd have a 90* crosswind in a small-tail RV-6 possibly gusting to 30kts at the time of takeoff.  Finger hovering over the scrub button...   And it turned out we did.

I liked how a) it color codes the velocity of wind in the four different wind models at the bottom of the screen and b) how easy it is to find a time in the future with the winds will be where you would like them.

Two screen grabs below.  First showing the Friday 7pm forecast for the next day at 9am.  Not fun. 

Second grab showing pretty nice winds for Tuesday at 3pm.  Might be worth a download (free) if you want to play around with it.


Brake Cylinder Problem

Q: I have a brake cylinder that is leaking fluid inside the cockpit. I removed all four cylinders and replaced the seals. One of the cylinders is still leaking fluid. I think this one was responsible for the main leak that I had initially. Should I just buy a new master cylinder. It is a Cleveland 10-30 master cylinder. Or is there something else that I can do to stop the leak besides the rubber seals that I already replaced?

A: Replacing the seals/o-rings should fix the leak. If not, it is likely corroded and may need to be replaced.

A: When rebuilding the Cleveland 10-30 master cylinders in my 6 I discovered the piston shafts worn where the top seal makes contact, which was the cause of my leaks. After polishing out the surface irregularities on the piston shaft and installing new seals they remain leak-free after two years.


Don Hull Got a Golden Ticket

...others chiming in.



December 3, 2018. Issue #4,709

Magic Carpet Is Airborne! ...Chris RV-12

After several weeks hoping for the weather to improve my MagicCarpet RV-12 S/N 120832 has finally airborne. The maiden flight was flawlessly and very successful. A tiny bit of heavy wing on the left side, which will be adjusted with the upcoming flights. Beside that she flies very nicely, well balanced and yet agile. The outside view is simply superb. Max. speed. was 116kt TAS at 5500rpm at 5000' without the wheelpants.

The plane features a single Dynon 1000 Touch with analog backup instruments for altitude and airspeed. A Power FLARM traffic avoidance system and a dual port 5V USB charger. The interior consists of confor foam leather seats by Flightline Interior with custom stiches, sidewalls and all carpets.

It took me 4 years and a little over 2000h to complete her, followed by 9 month for final assembly, exterior painting, acceptance procedure and airworthyness certification.
Needless to say, that I am very proud to have finally took her up in the sky.
At this point I would like to thank you all here at VAF for your outstanding support. You are truly awesome.

A video clip of the flight can be found HERE


Great Couple of Weekends! ...SeanB

11-18 Today was a big day!!! Tracey (my bride) was awesome, once again, and volunteered to help me get the plane on its gear. I already had the tailwheel on. We got the engine hoist and a giant tow strap to the front of the plane. I weaved it thru the engine mount. Gotta admit, I was a little nervous as we started getting airborne off the fuselage dolly. Things could roll or pitch. Tracey jumped in and helped stabilize the front of the plane from rolling. I tried getting the first gear on, but I still had slight interference from the fuselage. Emergency action with the Dremmel took care of that. I was able to get the gear slipped into the socket, then get the bolt started. "Wahooo", exclaimed Tracey! I raced to the other side and had no interference. The leg went into place and again with the bolt. Another, "Wahoo"!

We took a minute to look at the sight of things and smiled. The back of the plane was still on the dolly, so I went back and easily lifted the aft fuselage. Tracey rolled the dolly, then the plane was on all three wheels for the first time ever! I was so excited and thankful Tracey was there for help and to share in the excitement. Couldn't have done it without her. I was so excited, I rolled the plane outside for many more looks.

Engine is next!  ...


Status ...Nova RV RV-14A

Wheel pants and fairings are attached and now it's all completed. Awesome performing airplane


Some Throttle Love ...AX-O

I sent out my throttle quadrant to Dayton Murdock at DJM Manufacturing so he could use some of my old parts (they were matched drilled to the fuselage for mounting) and add the Prop lever.   ...


2019 Van's Calendar Golden Ticket Winners Chime In

fmi: Get your calendar (and possible golden ticket) here


RV-14A Status ...Tom023

Slow build but getting close.


RV-3B Status ...David Paule

Engine mount/landing gear to the machinist -
Since I just couldn’t cut a tapered hole in the landing gear mount, I took it to my machinist friend. But I’d gotten far enough so that I could use the tapered pin as a positioning tool. He’ll get to it one of these days. For him, it’s a hobby. He’s a physicist and his company is very busy these days.

ADAHRS bracket -
With the engine mount off, I flipped the canoe and looked around for the next thing to work on. Seems as if that might be the ADAHRS mount. I made a sketch showing where one could go on an RV-3B and found that the place I preferred was just under the top of the F-308 bulkhead.  ...


Goatflieg Status Update

My thanks to Terry Kohler, Dave Pohl, Ted Gauthier, Harry Manvel and Curt Martin for their help... again.


How to Set These? ...Girraf 7/7A

Anyone have any suggestions for how to set these? Clearance is extremely tight for my tungsten bar and a 4" no hole yoke. Anyone use pull rivets here? These are the final rivets for my vertical stab and I set it aside a few weeks ago thinking I would have an epiphany at some point but I haven't come up with any grand ideas yet.


Milestone: Engine ….Jonathan in Lewisville, TX



November 30, 2018.   Issue #4,708.
Wishing you and yours a happy, safe and RV-filled weekend!

Milestone: Private Pilot!

Our friend John Platner at 52F (RV-8 owner Gary Platner's son) earned his Private Pilot rating Thursday with DPE Bob Owsley.  So now having jumped out of airplanes 3,000+ times with a parachute, he can now also fly them <g>.  Way to go John!!!  dr

John Platner (L) and Bob Owsley (R).  Gary Platner photo.


Dilemma 2.0 ...AX-O

Well this has been ruff. Plane has been down since Jul. I am getting close but at this point, the introduction of Dilemma 2.0.

Since I originally made the firewall without the cut out, i had to overcome some limitations with the metal. That is why you will see a few dots of sealant on the firewall. Although the holes ended up in front of a bracket when folded over and were no impact, i still wanted to make sure they where covered up.

The firewall is sharp. If you look at it wrong, it will come out and bite you. In the below pic I did not even know i got a cut.  ...



Don't wanna do that again. Nope. Double check your math when calculating UTC offsets, especially when crossing time zones. Could've been there an hour or so earlier for 11004KT. Went around the first time when tower gave me 35L. Planted that sucker firmly on 31 second time around. Remarkable handling, and glad to know how capable the plane is, but I would really prefer to avoid a repeat performance.
Barrett T.
Smyrna, TN - KMQY
RV-6A (Bought)


Milestone: Six Years and Counting! ...rph142


Practicing the Commercial Maneuvers in the RV-6

...with iPad/Apple Pencil notations.  Thursday a.m. NW of 52F.  Click pics for greater detail.  Garmin Pilot track.  G3X showed 39kts of wind at 2,500' so those maneuvers that didn't require me to stay over one spot understandably had some drift (like the steep turns right and left done first).  Climbed up to 7,500' out of class B for the 1,080* spiral down at idle.  That was 'fun' with the 40+kt wind up top.  Staying over one spot required a quick turn with many seconds after almost wings level.  More detail in the zoom in.  The jagged track is usually when the plane is near 60* of bank.

Fun to do and to track for later critiquing.  The RV-6 (compared to a C172) makes these maneuvers more challenging, IMHO, but I got my instrument ticket in it so I'm confident.  To those unaware, some of the maneuvers require the wind to be from a specific direction at start.  The wind vector on the G3X makes this a non-event.  Now if there was a wizard in it that would calculate the pivotal altitude for the eights-on-pylon! <wink>.  Heck, it might do it and I just don't know about it...

Nerds of the world unite! <g>.  Four pics beginning HERE.


List of infrequently inspected/overhauled/replaced items? ...RV10Rob

Hi, all... now that my RV-10 is nearing 8 years and 500 hours, I'm wondering whether I'm missing any of the preventative maintenance items that are done infrequently, such as the 500-hour mag inspection and (10-year?) flexible fuel/oil hose replacements. Does anyone have a good list of these items? Similar question asked a few years ago here, but didn't see a comprehensive list. Thanks!

Rob Kochman


December Wallpaper Calendar

...Sunset RV-8 at KSWI.


Status Report #7 ...romanov (Israel)

That report is about:
• How to make your workspace to be ultra-inspiring?
• Riveting: Vertical Stabilizer (The tail of the 1st rivet)
• Riveting: Rudder

That time our report is very heavy in achievements and we
are super happy to put it here. Let's go and see it step by


RV Hanger Space Available (N.TX - T67)

Hanger Space for Rent.  Hicks Airfield T67.  I have room for one,,,, RV3,4,6,7,8, 6a,,7a, or 8a.
Jay Pratt


Welcome www.SkyDesigns.aero

...RV-6 builder Ken Krueger.  Ken contributed to the design of the RV-9, 7, 10, 12 and 14, and has been a friend for nearly 20 years.  Sells RV-8 aluminum airfoil landing gear kit and other stuff.  Ad lives in the Previous Day's News section.


Cessna Style Flap Switch Mod? ...mfleming

I've searched but have not come up with any information on installing a Cessna style flap switch with detents in a Van's aircraft.

I'm currently flying a C-172 with a spring loaded switch like the one for my -7. I absolutely hate it
Could I get used to it? I'm sure I could but since I'm building my own plane I'd like to see if using a Cessna style switch with would be feasible and reasonable.

A flap switch like this:


200mph ...az_gila

Did some checking with the newly re-pitched Sensenich (to 85 inch) at high altitude.

2700 rpm was almost full throttle at 12,500 ft (14,000 ft DA) and got that 200 mph number (174 kts)


RV-Lancair Brotherhood Day ...snopercod

The Brotherhood made an unscheduled early run to GMU this morning before the clouds set it. All three of us arrived at pretty much the same time. My iPad was lit up with targets. I was following Darwin's RV-3 and I passed Owen's RV-12 approaching the airport. GMU tower has radar and reported he was 1 mile off my right wing, but I could see the whites of his eyes So I landed next and Owen right after. Lunch at the Runway Cafe was good as always. Mike was kind enough to snap some photos of our planes.



November 29, 2018.   Issue #4,707.
Flew the RV-6 for a .6hr post-MX checkout flight Wednesday - the first RV time in a month and two days (yuck).  The new brake line install is officially complete.  Thank you TS Flightlines!  Honestly felt about 100' behind the plane for a few seconds there at takeoff and climbout.  Eye opening how fast these skills deteriorate!  Flew over to KXBP for $3.99 fuel and back, practicing the buttons for VNAV climbs and descents, as well as the mindset of arriving at an airport at RV speed!  Felt wonderful to be back in the air.  Boy does that plane need a bath!
  Next project:  some love for the tailwheel group.  The locking pin and spring are worn and, even after cleaning I'm taxiing with brakes and rudder only.  File picture below under "proof of enjoyment" ;^).  Researching options...
  In the mean time I'm working up some flashcards with the commercial maneuvers on them for reference in the bumps while flying.  Direction the winds need to be from, calculating the pivotal altitude, Va entry speeds and exit speeds for each maneuver, etc.   Hieroglyphics-like on a kneeboard.  Time to knock out this rating now that the plane is back online.
  Hope you have a nice Thursday.


Hermann Demos RV-8 Aerobatics While Giving You a Scenic Tour of Germany

...BruceEicher post.  Hermann Schiele "SuperCubDriver" shows off his flying skills, his countryside and his beautiful RV-8. Enjoy!

related: RV Photo/Video URLs in Forums


Reality Check? Value of 1993 RV-6 ...punkin

Hey guys,

I've got an itch to do something different, which probably means I'll regret it later...I LOVE my RV-6! Some of you have followed as I progressed through larger tires, ground adjustable prop, and then engine upgrade in my attempts to turn my -6 into a super cub.

It's been fun, and it's a decent trade off to have a 145mph cruiser that can land on some rough fields, but I'll never have the comfort level of doing the real slow and low in this airplane.

I'm considering selling, and just want a reality check. I know I'll never get what I paid + what I put into it (about the same as I paid again) over the last couple of years.

But, since this is a forum that never lacks strong opinions...if I put it up for sale here or one of the big online sites...what should I expect to ask and receive? I'll probably put the stock tires and wheel pants back on because most people don't buy an RV to go slow...

1993 RV-6 TTAF about 700hrs, TSMOH about 640, but see below work done about 40 hrs ago.
O-320-E2A now with new cam, new oil pump and 4 new high comp pistons and remfg cylinders (about 40 hrs on them) crank sent to Tulsa for inspection and returned with no issues.
Dual PMAGs
New oil cooler with engine work
Whirlwind Ground Adjustable Prop
Appareo ESG Transponder (2020 ADSB compliant)
Garmin GTR200, wired to Aera 660
Air gizmos panel dock for Aera 660, (may remove if I get beat up on $$)
Trio EZ pilot with altitude hold coupled to Aera 660.
Analog Airspeed, Tach, and Oil pressure
MGL E-1 combo engine monitor
MGL Flight combo multifunction gauge

I'm probably missing something, but that's the basics.

And the headline price should read.... $$ ??????


Status Update Pics (many) ...RV7ForMe's RV-7A Rebuild

...updates 3, 4 and 5.

Alright... We continue!

The wings and wing tips needed a bit of sanding and we went ahead and got the old paint removed and primed and painted them again. Since the old paint scheme didn't turn out to be very luck we decided to take the opportunity to something different.  ...


Milestone: Wings attached

...AviatorJ.   Since I moved the plane to the hangar on Saturday my progress hasn't slowed. In fact I think it's motivated me to push on. Today I drove up there for a very long lunch and put the wings on. Then I stared at it so long that I decided to take a picture, instead of being creepy!



November 28, 2018.   Issue #4,706.
Note from mothership re: 2019 calendars:  "...calendars are in stock, being packed in envelopes and boxes and shipped. And, the Golden Tickets have been randomly inserted.”  (order info). 

Around the World in an RV-9A Blog Update ...John

I have updated many sections of the trip blog and added additional photos.

This was a tough trip, with very unfavorable weather around the planet and many obstacles along the way.

I plan to fly "May" to Oshkosh in 2019 and hope to see you there. Fly safe.


Spaceport Update (Fly-In) ...Guy Prevost (RV-10) PIREP

Update 20181127. As stated in the thread linked in the original post, my goal was to enable people to fly into Spaceport America. It was going to cost me at least $5k up front to arrange that and much time. There is now a Fly-In scheduled at the spaceport on April 7, with registration becoming available before hand. FMI: https://lcspacefestival.com/

I'll post updates in the other thread as I learn more.


New RV-14A Builder Chimes In

...Ron Slosberg (Roswell, GA)


Tom Valenzia (RV-8) Family News

On son Jeff was promoted to Brigadier General. The DoD made the announcement public today. Next stop...Afghanistan!

A few months ago I commented how difficult is was to sneak in an RV flight or two with our son. Jeff's last flight with me was in our RV-8 back in 2012. I've owned the -12 for 5 years. On Jeff's last visit, the -12 was down for SB repairs. I am beginning to think maybe the time is right for me to trade in the airplane hobby.


Early Xmas Present

Ravpower.com solar 25,000mAh power bank for my laptop/iPad/iPhone in the field....with flashlight.  $54.  I have no data to report other than a) it arrived yesterday and b) it seems to work.  Three photos showing specs and stuff.  Shown below on the trunk of the car charging the iPad running Garmin Pilot.  Holding down the power button turns on the flashlight.  Tapping the power button changes the flashlight from ON to BLINK, tapping again to SOS, and finally tapping one more time turns it OFF.  Direct link to the one I bought HERE.

Now I can cancel my MiFi puck w/AT&T that runs $45/mo and instead use my iPhone as a WiFi hotspot out in the field for laptop internet access without worry of killing the cell phone battery.  Will save me over $500 a year, and that's a lot of haircuts.  If I still had hair...


Milestone: No Limits ...Claude Pitre RV-9A

I'm probably over my limit of posts for one day, but couldn't avoid this one.

New Special Certificate of Airworthiness with amended operating conditions received today. Official test phase done - passengers, night flight and cross country flights here we come.

Now to plan some hamburger runs.


Eagle's Nest Projects - Spotlight on Jim Senft (Central HS, WI)

...R.E. Butcher post

Spotlight on Jim Senft
Eagle's Nest Project Director - Central High School (WI)

Jim Senf is a mover and shaker in his community and if you ever meet him, you'll instantly begin to share his high level of excitement and enthusiasm for "paying it forward". Jim organized and manages the Central High School (WI) Aviation Club and in partnership with Eagle's Nest Projects, he's been a commanding force in the lives of hundreds of young adults and community leaders. His untiring efforts inspire and empower the youth to become more than they ever dreamed possible and he brings out the best in the community leaders in support of his programs and the youth. The spotlight is on you, Jim... and it's well deserved for all that you do! Thank you! /reb

I (and others) received this note from Jim sometime before Thanksgiving; “I am Thankful for:" I’m sharing it here because it inspired me and because it may provide others food for thought. BTW, did I mention Jim's son is an Eagle Scout? /reb




November 27, 2018.   Issue #4,705

ZU-XOX is an aeroplane! ...Janekom

So after about two years and just over 1300 hours, QB kit #41612 became an aeroplane on 14 November 2018. This happened at The Coves, South Africa. This is my 7th project and might be the last. What a fantastic aircraft. Thank you to Vans for providing us with such an incredible kit. A big thank you to everyone else involved.  more pics


Another one flies ...mike newall

120958 G-CJZW flew today. Phoned Vans to give them the news.

2 years in build along with it's partner 120957 as we had workshop room.

They have been built as an engineering exercise and to keep the workshop full lest the wife fills it with carp and other stuff

Another straight forward event, rpm a little low... left wing a little heavy.... nothing a big issue and will be cleared this week. We managed 2.5 hours today, we need 5 as a fly off in the UK before a flight test and submission for sign off.

There will be a little something on YouTube soon when I have the data.


Crew RV8 ...lucaperazzolli in Italy

Hey, that great photo from my friend Bruce told me that I'm absent for too much here.   Enjoy this photo took from our friend Luca Grazini.


Thirteen months and three weeks and she chubby but beautiful  ...Bavafa

It has been eleven months of pure joy building and two months of anxiety for paint process but she finally got done and after three weeks of transport, final assembly and sign off, today was the first good weather day for the first flight.

I want to take this time to thank first and foremost, my wife for being absolutely wonderful and supportive in this project and never hesitate to come to the garage to give a helping hand. Second, I like to thank VANs team for creating such wonderful kit that is just a joy to build, they have outdone themselves. Lastly, I like to thank Doug and this great community for always providing good support, friendly feedback and ideas.

Today I made two flights, one 30 minute and one nearly two hours. The aim of second flight was to break-in the engine. She flew without any issues, all temps were good and she was fast.

I do realize I still have lots of work and tweaking, calibration and configuration of the avionics. I do have a bit of right wing heavy which not sure how to go about resolving as my rigging seem to be spot on. One flap sits about 0.6 degree higher than the other but I am not sure if that is enough to cause a heavy wing. For those before me and if they had a heavy wing (RV14) would appreciate any feedback as how you resolved it.


How to create a perfect tray for coating the RV parts ...romanov (Israel)

All you need is the box you got from VANs sometimes.  Later you just need piece of fence and 30 screws with big heads. That's all: isn't it perfect ;-).


I'm back..with another -8A..in need of panel upgrades!

...Bill VonDane's back.  (eHangar.org guy.)

It's been about 9 years since I've been here. I built an -8A in 2002 and sold it in 2009, and just got busy with life...you know how it is. But I just picked up another -8A and will be stating a two phase panel upgrade, along with an in-depth condition inspection, next month. I hope to have a builder/flying log up in the next week or so to document the process, but it's not quite ready.

The "Ghost" is a 2006 RV-8A quickbuild with a 200HP IO360 and Hartzell C/S. The panel is VFR and pretty well done with vacuum AI and DG, Navaid autopilot, RMI VSI, VM1000, GTX327, 250XL, SL40, and a 496. It's also got a Propriety Software Systems AOA. Not bad, but if you know me, then you know i'm gonna upgrade it...LOL   ...


Servo Activated Oil Cooler Shutter

...seen at Richmond Aviation on an RV-8


Dave Binkley (RV-6) Chimes in the 'Your 2nd Airplane' Thread

I finished and flew my RV6 in May of 1996. Still flying N241DC 22+ years later.

The other one....



November 26, 2018.   Issue #4,704.
   Hope you had a nice holiday weekend.  Lots of RV news to report over the past four days, so feel free to dig in.  Scattered data points:  Not-RV, the Mars Insight Mission lands on the surface 11/26 at 3pm ET (watch live).  Updated the donations (who has / how to) as of 11/24 1940Z - THANK YOU! to the folks that help keep VAF and our family afloat.  Special shout out to forum user 'Dvalcik' for the gift of the VansAirForce.net charity cap with the custom lobster (right) flying an RV-12 logo on the back (David helps organize the Belfast,ME Fly-In - they apparently eat well at this thing).  It arrived Saturday and is on my head as I type this.  How can you not love this cap <g>?!?!  Thank you Sir!
  No RVating in N.Texas Sunday. Wind grab from 12K’ level shows it was ‘active’ around here.... and the F1 season is in the books.  Sigh.
  Hope you enjoy today's edition and have a nice, crazy-free Monday.

RV flying in Germany, photo and video proof.  ...BruceEicher

Posting for a very dear friend;  RV-7 Tobias Treichel, RV-6 Peter Grievner and Herbert Fluck, RV-7A Klaus-Peter Morhard.


Almost in the air! ...Don Patrick

After 8 years, 8 months, and 8 days, the building stage has come to an end. Calibrated my fuel tanks yesterday and so far, I am impresssed with how accurate the capacitive system is...I filled the tanks and then I started draining the tanks a gallon at a time and the fuel level on the D180 reflected the same.

I have had number of AME’s look at the aircraft so I’m not expecting any real issues with the inspection. Fellow VAFer Simon Hitcheon will give it a go over tomorrow to check for any issues.

Here’s a few pics.


Very Timely Thread! (Mid Seat Rails RV-10)....Bill Boyd

Great idea on the bottom-up approach. I don't see how you'd ever get the washers and nuts started on the bolts in the traditional top-down orientation.
Some of these are beyond the reach of even the slenderest fingertips, and groping with pliers is an exercise in frustration (tried that first). So - double-sticky tape on a tongue depressor is your friend when it comes to getting some of these in.


RV-12iS Plan Revisions / New Documentation:  11/16/18 publish date

Page 38iS/U-02 REV 1: In Figure 2 detail view, added “NAS1149F0332P”.
Thin washer prevents premature bottoming of nut.
Page 38iS/U-05 REV 1: Step 5, “Use shims and clamps to secure the left and right flaperons in a trailing edge down position as
shown in Figure 3. The goal is to have a 1/8 in. [3.2 mm] offset at the trailing edge.” was “Use shims and clamps at the trailing edge
to lock both the left and right flaperons in a slightly downward position as shown in Figure 3.”
Updated Figure 3 to show smaller shims (that don’t interfere with rivet heads) and to show clamp at the trailing edge.
Page 38iS/U-09 REV 1: Added new Step 1, “Match-Drill #30 the two holes in each F-01207C-L-1 & -R-1 Baggage Bulkhead into the
F-1284-L & -R Shear Clips. See Figure 1.”. Renumbered subsequent steps.
Shear clips are supplied without holes in forward flanges.
Page 38iS/U-17 REV 1: In Step 1, “…WD-01207-1 and WD-01208-1…” was “…WD-1207 and WD-1208…”.
Updated Figure 1 to show new stabilator structure (reference SB 18-02-02).
Page 38iS/U-18 REV 1: Added new Step 8, “Fabricate the T-01236 Fuel Overflow Sleeve by cutting a 1 in. [25.4 mm] piece of PT
1/4IDX3/8ODX4” tubing.”. Renumbered subsequent step.
Page 38iS/U-21 REV 1: In Step 2, added “These seat cushions have been designed to suit most pilots. For adequate clearance to
the canopy, very tall pilots may need to remove foam from the seat bottom cushion or source a custom seat cushion.”.


Back from the Upper Valley Aviation paint shop ...BJohnson

After a day of assembly, rolled Juliette out of the paint shop in Chilliwack, BC on a crystal clear November day to bring her back home! After not having her for several months it is time to go fly!  ...


Top Forward Skin ...RV-14E PIREP

As a datum point, I did not have the F-01471 Forward Top Skin riveted when I fit the canopy. Following completion and after the Forward Top Skin eventually was riveted, I have no fitment issues.


Welcome www.eHangar.org

...free online panel designer.  Ad lives in the Previous Day's News section.


Congrats to RV Drivers ...Boomer

"EAA Members Win in First Air Race 1 China Cup China Cup
November 21, 2018 - Steve Senegal, EAA 478025, held off Tim Cone, EAA 374465, in a dramatic finish in the gold final at the Air Race 1 China Cup in Wuhan City, China. Steve, flying his Arnold AR-6 Endeavor, clocked speeds of more than 230 mph during the final.

The Air Race 1 China Cup, which took place November 16-18, was the first air race to be held in China. Air Race 1 CEO Jeff Zaltman said it would be far from the last one.

“Bringing air racing to China has been a major triumph and the public have fallen in love with Air Race 1,” Jeff said. “I would like to thank our Chinese partners that have helped to make this happen and we look forward to working with them again in the future. Air racing in China is here to stay.”

Tim had an early lead in the gold final in his Cassutt What Airplane Honey, which must be a familiar feeling after he won the Air Race 1 World Cup event in Thailand last year. Tim ended with a speed of 230.539 mph, while Steve won out with a speed of 233.637 mph. Philip Goforth placed third in the gold final, and Steve Tumlin took home first-place honors in the silver final."

Steve and Slick (Tim) are also Vans RV 8 drivers.


Status Report: #6 ...romanov (Israel) RV-14A

That report is about:  - How the Horizontal Stabilizer made my day?  - Last painting day before the great finalization.


RV-Lancair Brotherhood Day ...snopercod

So the photographer is a day late and a dollar short, but four of us flew to Spartanburg [SPA] for lunch at Jason's Deli on Wednesday. I forgot my wide angle lens so I was unable to get all our planes in one shot. Then I left the camera in the plane so I couldn't post the photos until today. I flew my Lancair, Owen flew his RV-12, Darwin flew his RV-3, and Mark brought his Subaru-powered RV-#?.  On the return trip at 6,500' , Darwin kept up with me all the way and then approach put him in front of me for landing. I call discrimination!


11/25/18 Update ...j-red RV-8

The night we moved the fuselage, a couple of friends came over and helped fit up the wings with some tapered hardware store bolts. These same guys helped me do the wings on the 6a. Based on that experience, they were prepared for a several-hour-long ordeal. This was nothing like what they expected. Maybe 5 minutes per side, and they were temporarily hung.

Over a couple of days, the tanks were attached and fuel lines fitted.

The next major job was to check for incidence and sweep. Once the fuselage was levelled, 4 plumb bobs took care of the latter, and a piece of angle clamped to a 4' level made checking incidence a piece of cake.


Vlad Strikes Again (Thanksgiving) ...Vlad


Too Deep! Counter sinking the Rudder trailing edge ...hubbardr1 RV-10

After getting the rudder ready for priming I went ahead and moved forward to the elevator. The elevator trailing edge wedges went much smoother and much more uniform. So I decided to take a second look at the rudder wedge and I'm worried. I'm pretty sure I overdrilled the rudder trailing edge wedge counter sinks too deep.

The top wedge in these photos is the rudder wedge. Bottom is from an elevator. The rudder depth from top of rivet head to the top of the skin is about double that of the elevator. :/

You can also see where I pulled the drill press too hard and slightly deformed the wedge edge. I'm worried once riveted, the trailing edge will resemble a missouri road vs something nice flat and and straight.

So what are my options? I've contemplated re-doing the rudder wedge but I've already dimpled the rudder skins. Seems impossible to get the hole alignment right now that its dimpled.

Anyone out there redo the rudder wedge? Successful? Other ideas?


Pics from Mr. X

...Tonopah test range,
Monument Valley Airport,
Crescent Dunes Solar Energy Project,
Mt. Hood,
and wingtip vortices from B777 at SFO.  Pics begin here.



November 21, 2018.   Issue #4,703.
  Wishing you and yours a happy, safe and RV-filled THANKSGIVING Thu/Fri/Sat and Sun.  See you Monday! 


Status Report ...Sam Bovington

Final Assembly: Been awhile since I posted an update. Its at the airport now (AWO) and nearing engine start. Just working off a long list of items to complete. I've also been in the middle of a career transition which has delayed things a bit. But not much longer!


Oshkosh Alternate Airport Reviews ...DanH

Ok, you're inbound to KOSH and dial up the arrival ATIS, only to learn the field is closed, or the approach is turning into a furball. No problem; time to head for an alternate airport and land.

So tell us about your alternate airport visit. Why did you pick it? What facilities are available? Was it a pleasant experience? Did you make new friends? Where did you sleep? Did you go hungry, or eat like a king? Do they have Uber? Groceries? Starbucks? Strips clubs? Churches? What's there?

It's human nature to distance ourselves from the unknown, but if we know, we'll go. Report the good, the bad, and the ugly, and help your fellow pilots pre-determine where they're going, before they ever leave home.


Status Report  ...rmartingt

Got some coworkers over with promises of beer, and we mounted the wings last week.  Today I checked rigging.  Incidence is a hair high (bubble is touching the forward mark) but it's even on both sides, all the way out (no twist).  Edge distances are good.  Triangulation is dead on to 1/32".   Both wings are swept forward 3/8" at the tip.  The flaps touch the bottom skin perfectly.  Close enough for government work!  Now there's a couple days' break for Thanksgiving and for my aft bolt drilling tools to arrive. Going to crack a cold one...
(And yes, that's our old stove back there... perfect for baking parts post-painting...)


Tip-up Lift Strut Test

There has been a lot of talk about adding quick release for the lift struts on a tip-up, should the canopy need to be jettisoned.

I just ordered a new set of lift struts for my canopy, thus I will so have a pair that we can experiment with.

I was thinking of taking a flat foot sheet of plywood approximately the size of the canopy and hinging it at the bottom, attaching the struts 1/3 of the way from the top and securing them on a trailer and see at what speed they pull out.

I suppose I could make the sheet half the width and mount the strut in the vertical center of the sheet so I can run two tests.

Dan, you are much better at this than me, do you or any others have a suggestion for running this test?

My theory is that the struts will pull apart at a fairly low speed.
Bill R


First (real) post! ...new guy chimes in (Wichita, KS)

Hello all,

I've been lurking on the site for a while now but finally felt like it was time to actually make my first real post!

I purchased a once-flying RV-4 about 8 months ago and put it into the shop while I left town for work. I should be coming home next week and it should (hopefully ) finally be finished and ready to fly!


New Guy Chimes In ...petizo1 (Torrance, CA)

Hello, I'm new to the forum and a 100 hour private pilot; I've been looking at buying a used RV12. I went and flew one a few hours this weekend to get some transition training. I really enjoyed the plane and the handling, especially the 3-4 gph at 100+kts! When I talked to the experienced 15K hour instructor he advised against one for anything except local around the patch flights. I'd really like to think it could be used for trips from Socal to Northern CA, AZ and even Utah, New Mexico...he thought with the big mountains everywhere that would be dangerous and such a light plane would not be a good choice except on the most perfect of days. Obviously I'd pick the best weather I could, but to be honest, he made me nervous that I'm being naive about the realities of light sport x-country capabilities. Would love to get some thoughts from those of you that have more experience. Thank you!


Pic from Mr. X. ....Grand Canyon, looking West at 0900 local


Mothership Holiday Hours

[ed. Same with this site. v/r,dr]



November 20, 2018.   Issue #4,702.

Status Update ...Bill Boyd RV-10

Haven't updated progress in awhile in my own thread so here goes.

I was pretty much running out of things to do before drilling the gear legs and messing with seat tracks and such. By that I mean, lacking an avionics suite, there wasn't much more to do during the easy-access stage where the fuse is on a rolling dolly down close to the floor.

Time to spit on my hands, rub them together, hoist the Jolly Roger and slit a few throats.

And sweat a few bullets.

Reminder to self: moments like this are why we carry builder's insurance.

After much pondering I decided there was no need to make a sawhorse just for this job. The EAA workbenches I have on hand should be tall enough at 34" and will certainly hold the weight. Tail resting on one bench, engine mount double-strapped to engine hoist, up she goes! Slowly. Ever so slowly. Check everything twice, three times... The fuse canoe hasn't been off this trolley since I inspected the project in Columbus, Ohio three years ago.

Two parting shots showing the gear legs installed. Whew! Big step! 34" bench height seems to give plenty of ground clearance for wheel installation. I'll know for sure tonight.

[ed. Zoom in of Bill's 'taco cart' overlay mod.  A real work of art!!!!  v/r,dr]


Review: The Hartzell Composite Propellor on my RV-7A

...Otis Holt RV-7A

Not long after I purchased my flying 7A in October of 2017, I took the plunge and ordered a Hartzell Composite propellor and aluminum spinner through Van’s. The decision to buy was downright scary, as several pleas for opinions and experiences here on VAF went unanswered, and searches of prior posts turned up very little info. Were pilots having bad experiences they were not revealing? Was I making an expensive mistake?

The blades have an incredibly large surface area and chord widths from 3.5” at the squared-off tip to over 8” at the widest point. Long after I’d paid, my old friend and propeller guru Jack Norris told me that classical propellor theory would suggest nasty tip vortices, and I wondered if my plain-vanilla 180HP, 8.5 compression Lycoming clone would be able to pull it, or if top speed would be severely limited. I’ll jump ahead and declare a resounding YES to the first and NO to the second. Evidently the lack of info on VAF was mainly due to very few of these being installed on RV’s because of the higher cost.  ...


My under 40k RV-6 ...Pilotjkl (Seminole, TX)

Temporary panel while I figure out what I want...

Old panel...

Current panel...


New Guy Chimes In

New RV-8 Project Purchase

My wife and I just purchased a RV-8 kit that is mostly complete. The builder started back in 2000, so it is an older kit. We have never built a RV before and we sold our Bonanza to fund our project. See we are not new to aviation but brand new to the RV world.

I know there are some SB's I should comply with but any other tips of items to do on an older airframe.

We live in Maine so good heat will be a must. Where do people get the heated seats?

We want to do the G3X panel with the Garmin Autopilot. Will we need to open up the wings or tail to install the servos?

So far we know it needs paint, a panel, a propeller, and an interior. It should be delivered in early December. We are very excited!!


RE: the RV-12iS Avionics Packages ...Scott @ mom

Greg (Hughes) was the person posting the Avionics kit announcement so he would be the best person to confirm, but I believe the prefinished panels will be offered in only one color. The same metallic medium grey that was used on the prototype (N912VA)

The kit will include all 3 panel sections and the switch panel / throttle control portion of the center console, finish in this color with all of the placarding /logos silk screened on (with the exception of the N number), as shown in this photo.



November 19, 2018.   Issue #4,701.
  Got the replacement battery installed in my 4yr old smartphone.  iFixit.com’s $25 battery and install doc worked out swell.  Good for another 4 years hopefully ;^).  The RVating Wx was very different for Smokey and Vlad this past weekend.  Two splash images below, and hope you had a nice Sat/Sun.

"Sleepy Texas airport personified." ---Smokey Ray

"Winter is here."  ----Vlad


First flight of 120910 ...RV-12 UK

Pleased to report the first flight today of G-DOUZ in the careful hands of UK LAA inspector and fellow RV12 builder Jerry Parr. Following Jerry's initial 30 minute solo flight I joined him for a second flight of just over 2 hours and 12 landings. Hopefully another 2.5 hours tomorrow to complete the LAA test schedule.
A 39 month build and the first dual G3X Touch 12 in the U.K.
Harry Lees
G-DOUZ. 120910.
First flight completed.


Milestone ...ArlingtonRV

On a lunch run today, the Tach. ticked over 2,000 hrs.   This may not seem like that big a deal, but the engine in the RV-8 that I just bought last year is a hopped up Lycon modification of an O-360A1A that had fuel injection added as well as ceramic coated, high compression (10:1) pistons.

Many people told the previous owner, that flew it for 15+ years, that this particular engine would never get to TBO, primarily because of the high compression pistons. In fact, it will make more than TBO since I plan to fly it for another 2 years before having the engine overhauled.

It runs extremely well, has good compression on all cylinders and is not making any metal. The only gripe is that oil consumption is slowly creeping up, and has been over the past several years. I am currently at about 1 quart every 4 or so hours. This is what will probably lead to the decision to pull the trigger on an overhaul eventually.


Out of Paint Shop ...bkervaski

more pics


Alternator problem - here we go again ...74-07

Ok, I have a Plane Power 60 amp alternator. It works fine for a while then, it doesn't. We've run out all of the wiring and checked the belt. We looked at the plug and tugged on the wire. All good. We've done this three or four times. Every time, after we check everything over, it works again for a flight or two then, we get a low voltage warning and sure enough, we're running on the battery (12.3 volts and decreasing). As a last resort, I have purchased a new plug, pins and seals. Today, while removing the old plug, I noticed that the white wire (unused) was in the correct location (#1) but the aircraft red wire was in the center pin location (#2) rather than the #3 position as depicted in the Plane Power drawing. The jumper was installed correctly between #2 and #3. Could this possibly make any difference? Can't see how it could since the red wire is connected to the jumper and would be connected to both pin locations in either case.


Panel Layout Choices ...Av8torTom looking for input (poll)

I'm getting ready to start cutting holes in my panel and I'd like input on the three panel arrangements below - thanks:


RV-12iS Avionics Packages Available to Order ...mothership

November 16, 2018 – Van’s Aircraft has announced that it has opened orders for its RV-12iS avionics kits, which include complete state-of-the-art avionics options from both Dynon and Garmin. Builders may order these kits beginning today using the RV-12iS Avionics Kit order forms, which are located at:

Order Form

Van’s anticipates shipping initial orders for these kits starting in December. Note that when building the RV-12iS, the avionics kit is typically installed after the powerplant kit due to building sequence dependencies. Therefore, customers who have already ordered and received their RV-12iS Powerplant kit will have shipping priority if their avionics kit order is placed by December 15th.


New member of the 'Sinker Club' (carb floats) ...pstraub

After about 125 hours on my RV-12, I was beginning to think I would be one of the lucky few without carb float problems....I was wrong! Doing my night currency last week, I noticed the smell of fuel in my cabin for the first time. Also, my idle had been gradually getting rougher. After shutting down for the night, I opened the oil tank door on the top cowl and the fuel smell was very strong. With a flashlight, I could see standing fuel in the drip tray! I removed the top cowl and dropped the float bowl.....sure enough, the floats were mostly submerged. After letting them dry, I weighed the pair and they were 11.4 grams. I then checked the left carb floats, they were not as bad yet, but still over weight at 9.5 grams. I just ordered 2 pair of the latest PN, 861188. Wow, $300!! I guess I have a new and expensive 'consumable', this engine is 1.5 years old with 125 hours. Based on everything I have read, I am not confident that the new floats will last any longer. Maybe it's the ethanol in this California fuel. I just wanted to add my experience as a data point


Flight Test: Tuft Testing and Interesting Propeller Helical Condensation


We took this RV-9A up for some flight testing to gather data determining characteristics of the RV-9 airfoil in a critical angle of attack and during a stall. When we got back to the office, we noticed a cool phenomenon on the video. A cloud-vapor-like trail of condensation was forming off the tips of the prop, which which was pretty interesting and fun to look at!


Seen in the Forums...



November 16, 2018.   Issue #4,700.
The Red Bull Air Races are at the Texas Motor Speedway this weekend near my home field. Heads up for the locals. Wishing you and yours a happy, safe and RV-filled weekend!

To Colorado and Arizona ...joe_rainbolt

My latest flying adventure.  Along the way, we cross the Rockies and Sierras twice, see a baseball game, survive the harmonic energy vortex at Sedona, and view a big hole in the ground.


EarthX battery pirep ...William Slaughter

 I purchased an EarthX ETX900 for my rear battery RV-8 for the substantial weight savings and increased electrical capacity over the Odessey 680 I'd previously selected. Since the ETX900s terminals are on the centerline of the battery, you have to install the cables before installing the hold-down clamp. I of course have an insulating cover for the positive terminal, which I had believed was sufficient. But it was not. While wriggling the holddown and bolts into place, I managed to momentarily short the battery to ground. This resulted in an impressive flash and bang, and a noticeable divot in the hold down bolt. Removing the holddown bracket and bolts, I noticed that the top part of the battery was quite warm to the touch, but that seemed logical after the energy dump which had just taken place. I immediately set to work thoroughly insulating the holddown bolt (the bottom of the bracket was already insulated), and when finished, crawled back in to re-install, but the battery was still just as warm, just short of hot. I removed it from the plane and called EarthX. They diagnosed it as an internal short in the damaged BMS, and suggested I fully discharge it and send it back. They suggested a resistive load such as a light. I brought the battery home, checked the voltage (12.9) and attached a 55 watt driving light. In spite of being wounded, the battery drove that light for quite a few hours. I returned the battery, EarthX repaired (probably just replaced it actually) it at no charge, and sent it back.

My take homes:
Despite being wounded, the battery did not rupture or catch fire, and continued to provide useful voltage for a substantial period of time.
The customer service at EarthX is just outstanding - I made it clear that this incident was entirely my fault.
I have no qualms about putting the battery back in.
Now before someone replies that a regular AGM battery would have been unharmed by this momentary short, that is undoubtedly true, but beside the point. You can make a similar argument against a carbon composite prop because you can't just file out a small ding like you can on an aluminum prop. "There ain't no such thing as a free lunch."
William Slaughter
Houston, TX


Panel Status...AviatorJ RV-10

Tonight was finishing up some of my interior install and decided to put the seats in. Shut the plane doors and took some pictures. I really like everything about what I ended up doing.  Will probably take better pictures once I get the tape off, clean everything up, ect.


New Guy Chimes In ...Pedropilot

Long time reader, first time poster.

I fly combat rescue helos for the USAF in Tucson and have about 600 hours in helicopters with around 150 fixed-wing time in aircraft such as the T-6A, C172 and piper super cubs.

Been wanting to build an RV-8 for a while now and have recently started looking into buying an RV-4 to build more fixed-wing hours in the coming months as a first time buyer.

Been getting quotes through insurance and aircraft loans for a $42K RV-4. USAA is asking for 3 hours of dual in the MM before flying solo. Is there any RV users in the Tucson area that have an RV-4 or equivalent MM I could build those required hours in?

Looking forward to being apart of this community!



Ross's RV-4 Vent Photos ...David Paule

He kindly sent them to me, and I'm posting them with his permission. On a couple, I tweaked the exposure for clarity.


Houston area monthly lunch (November)

Well folks, it's that time of the month again where we get together to talk about all things RV. Let's plan on hopping over to Hooks for some burgers, this Saturday (11-17) at 11:30 AM.

Unfortunately I'll be down in Angleton for a track event, so I won't be making it this month, but hopefully everybody else can get together.
-8 fuselage


Pic from Mr. X

Meteor Crater and UPS 767...


Forums Lurker?  You're Missing Stuff...

If you're a VAF Forums 'lurker', you see all the posts, but NOT who is online.  Meet RVators!  Private message folks.  Make a friend.  Impress your neighbors!  Get RV problems solved!

What the lurker sees at the bottom of the forums:

What the registered user who is logged in sees (there were 653 people in the forums when I grabbed this......572 of the 'lurking'):



November 15, 2018.   Issue #4,699.

Ken Linde pic of Axel (AX-O).


Pink Cowl Seam Fit ...snoopyflys

Hi Fiberglass Gurus;

Now the cooler weather is starting to move back into my area, I started to turn my attention to reading, staring and mulling over the cowl fitting on my RV-7A. In the photos below, I think I have the top and bottom cowl somewhat in the position to clear my Whirlwind GA prop spinner (3/16") and close to finished along the firewall. However, the seam line between the halves gets progressively wider (open) as it proceeds forward to the spinner. Here some pics of where I am now;  ...

And a solution:  (DanH)

A common question in my PM inbox is how to extend the edge of a cowl that has been trimmed a little too short. The subject has been covered very well in the past, but perhaps a dedicated thread will search better.

There are two methods. A small extension (like 1/8", maybe 3/16") can be done with a flox/epoxy mix. A longer extension is done with multiple plies of glass fabric.

Both methods are based on a scarf joint. Block sand the scarf with coarse grit paper. The scarf should be 3x wider than the glass thickness, minimum. The wider it gets (5x, 10x thickness) the stronger the joint becomes.  ...


A hold and approach...jpowell13

Still needed a hold and one more approach by the end of the month. Ceilings were about 1,000' yesterday, but there was an icing forecast near but not exactly in the space I would be flying. The wind was gusting to about 20 knots and there was a turbulence forecast near but not in the space I would be flying. I hung around the airport waiting for better conditions, but decided to write it off and try again another day.

Ceilings were about 1000' and climbing this morning with an icing airmet from the surface. Winds were about 8kts. By late morning the icing airmet was lifted and surface temps were at 41F. There were no precip reflections. Overcast extended from 1400' up to 2900'. A 172 took off and flew an approach while I was prepping the plane with no apparent difficulty.

I filed "local IFR" and flew a hold and an RNAV approach to landing. The temp at 3000' was 32F, and I saw mist in the clouds, but no ice on the aircraft. I may have cut it close with respect to icing, but with the ceiling at 1400' the airport in Marginal VFR conditions and with flat terrain and no tall antennae where I would be filing, I reasoned I could let down below the ceiling in a pinch. It worked out well today. Should I have flown or stayed on the ground? John ...


New stock Titan 340 engines ...VAF advertiser

For anyone looking for an engine for their RV 9, Continental Motors has 2 lightweight, fixed pitch 340 Titan engines in stock. One high compression (9.0:1 180 HP) and the other low compression (8.0:1 174 HP). They have Precision Silverhawk fuel injection and dual P-mag ignition. These are the same dimensions as a Lyc. 320 but make more power. Motor mounts are Dynafocal Type 1. The high compression one has horizontal cold air induction, the low compression one has vertical induction. Propeller bushing I.D. is 3/8". Contact me at Titan Engines if interested.
jball 'at' cmg.aero


Boiling fuel/vapor lock..an engineering question...Mark33

So as we all know, boiling fuel, caused by either heat or decreased vapor pressure at higher altitudes is not a good thing and causes vapor lock. I know that different types of fuel (Avgas VS. Mogas) have different temperatures and vapor pressures at which it boils, but for this discussion let's take that variable out of the equation and pretend that regardless of the type, that it all boils at the same temperature and vapor pressure. So:

1. Does anyone know how much pressure is required to overcome this boiling point and to keep the fuel in its liquid state?

2. As the temperature or altitude increases, does it take additional pressure to keep the fuel in its liquid state? If so, is there a simple formula to calculate that variable?  ...



From Garmin



November 14, 2018.   Issue #4,698.

Paul Schad photo.  Taken Veterans Day.


Want a Job Building RVs?

(from Keith Ellis at Synergy Air South)
Synergy Air South is currently looking for Build Assist Technicians to join our team of highly skilled and friendly people committed to helping new builders achieve the best aircraft possible. We do this by teaching effective building techniques and strategies.

Build Assist Technicians will assist in fabricating, assembling, installing and processing materials, parts, and assemblies for homebuilt aircraft.

An A&P and previous building experience is highly desired.

We are a sister company to Synergy Air of Eugene, OR and located at the Newnan-Coweta County Airport (KCCO) in Newnan, GA, just south of Atlanta.

Please respond to synergyairsouth 'at' gmail.com

Krea Ellis
Synergy Air South
synergyairsouth 'at' gmail.com
Cell 678-520-5059


Probable Cause List Updated ...please digest, discuss and learn.


NACA Duct on RV-4 Cowl   ...acam37

I was going to do the same thing. I saw it on a -4 at a local fly in and thought it looked really good. But after cutting the hole and checking where the hose would enter through the side skin, the throttle/mixture cables were right in the way. So there was no way it would work on the left side with my setup. I glassed the hole up and abandoned the idea.


The Gremlin is Back...

Well, my gremlin is back after three trouble free hours. Here are the symptoms:

1. CHT, EGT and OIL temps spike high. Left EGT spikes more than others at about every 2-3 seconds.
2. Spikes are not synchronized.
3. At low temperature the indications are reasonable. That is before start, they reflect ambient temperature and respond normally (I sprayed Freon on them and observed a drop in temperature below ambient.
4. Disconnecting the CHT leads drives the indication low leading me to believe this is not a connector issue.
5. Oil pressure, fuel pressure, tachometer and fuel flow are stable and unaffected.
6. Today during ground runs I got an voice alert “EMF Low” alert, but main bus voltage was stable at 13,8 VDC.
Any ideas from the brain trust? Tomorrow I’m going to talk to Dynon.I suspect the D180 May have an issue.


Wingtip repair what glass fibre cloth do I need?

Hi all

Unfortunately I damaged the wingtip on my RV8 and I wondered what glass cloth I should order for the repair and what resin and hardener you guys use? West System?

I'd like to add a bit of glass to at the top of the wing and add a strip across the seam inside the wing to add strength.

Where would you get it from? And any tips to do the repair welcome.



My Second IAC Contest

I was asked to do a short write-up of my experience so it might inspire others to get into aerobatics with their RVs. So here it is:

I did my first contest 6 months ago and it was a great learning experience. Since then I have been too busy and have not practiced the Primary Sequence much (in fact not at all except at 2 practice days with the new chapter I joined last month). I have been spending a little time with the Sportsman sequence and just playing around with point rolls, vertical rolls, reverse cubans, humpties, etc. Just having fun.

Flying this contest was a last minute decision and I did not show up in time for practice, so I went into my first round without even seeing the box. On top of that, there were issues with my paperwork and I was not cleared to fly literally until the last minute. That left me very flustered and stressed out and my score showed it - 66%.

I did better the next day with 77% and 75% flights, but I was still disappointed because I felt I could fly better, but just couldn't perform when it mattered. However, due to the low turn-out, I still ended up with a first place finish, despite my mediocre overall score.

I also ended up being given the "Grassroots Achievement Award" for having the highest score in any category with a low HP airplane (defined as less than 180hp). I also was one of two pilots in all categories with no outs and no zeros in all three rounds. So overall it was a great weekend, despite me not performing my best. I learned a lot and met some great people and gained valuable experience.

I plan to compete in Sportsman next year and excited to see the 2019 Known sequence. I know I won't have as good a chance at placing well (compared to if I stayed in Primary), but I'm ok with that.

When at a contest, I'll do my absolute best, but in general I'm not as competitive as some guys. I love aerobatics for the pure joy of expression in 3 dimensions. And I enjoy doing higher level maneuvers, even if it's not done to perfection to win a trophy. So having fun and meeting great pilots and always improving is what's more important to me. But of course bringing home the goodies once in a while isn't bad either.

A big thanks to all you guys who were supportive and motivated me to get into this. It's been great!

Oh, and the other cool thing about this contest was to see the look on everyone's faces when at the end of the banquet, well after dark, I told them I'm flying home. No one else could do that b/c their acro mounts were day VFR-only. I once showed up to a practice day with my wife in the back and unloaded a bunch of luggage onto the ramp. We were going on a trip after the practice day! Gotta love the versatility of an RV!

Hope to see more RVs join the fun!
Brian RV4


From Mothership

Get your entire kit plans, manual, OP Drawings, catalog, and other reference material in the PDF format on a USB Flash Drive from Van’s Aircraft.

Load it up to your laptop, iPad, or your other favorite electronic device for use at work, or in the hanger.


Air Cleaner Box (FAB) K&N Cracking and rubbing

I see a ton of posts on this and various fixes. I took off an old, and cracked FAB that had a metal plate on it with a huge gap between the filter and the housing, and built a new box and added support where the old one had cracked. Within 100 hours, it had completely eaten through the new bottom. My question is: Is there supposed to be ANY contact between the lower cowl and the air cleaner box via the baffle material? On BOTH assemblies, the thick plate that mounts to the performance airflow section of the throttle body has also cracked on the forward left bolt area. I obviously have something WAY wrong. I've only had the plane for a couple hundred hours. 815 hours on airframe. Whats the fix?


Avionics Margins PIREP ...Stein from SteinAir

I don't have much to add other than to say the reputable shops mentioned here I consider colleagues are fine folks (Aerotronics, Approach, Walt, etc..). With the aforementioned folks specifically, we all actually do business back and forth with each other so I know what you can trust from whom. The "cheapest" vendors are not on that list.

Most people don't realize that with Avionics (and many things aviation) and unlike furniture, jewelry, or even cars - there isn't much margin to start with. Anyone hoping to find a 25% discount or difference in price between different dealers is in for a huge awakening. The reality is that most avionics and electronics now start out with a gross margin to the dealers of high single or low double digit percent numbers at best. That is why you see some folks charging you extra to even use a CC, etc.. I've had/have people call me assuming there are huge margins to begin with and insist on a 30% discount. I have to tell them that when they find that let me know, and I'll start buying supplies from them!

There are folks that will sell somewhat cheaper than others, but you'll never find anyone that is 25 or 30% less than someone else, because it's just not there to begin with. That means that on an entire purchase of avionics you're looking at very small differences (percentage wise) and why we try to add value in other areas. The business model where the only value you add is being the low bidder isn't what we're all about.

As an aside, we do a fair bit of regular business re-wiring items / harnesses that folks already purchased once somewhere else...

Just my 2 cents as usual.



November 13, 2018.   Issue #4,697.
  Ordered a $24 replacement battery for my 4.2-yr old iPhone 6 Plus, then drove out to the airport to get a pic of the new brake lines (thanks Monk!). New pads, lines and an overhaul of the master brake cylinders that were needing some attention (Monk had some O rings).  Helped him move some planes around before the cold, cold Wx arrives Tue (27*F forecast for am - cold for us).  By then it was time to get back on the computer. No flying. Some shivering. A taco for lunch. Productive morning. Hope warmer where you are...


11/12/18 Update ...j-red

Big day. Had a local auto towing service come over and help me move the fuselage to the hangar. This was the third time I've used these guys, although it was this particular driver's first time to carry a plane. He was pretty stunned to say the least Took quite a few pictures to show his buddies.

$125 later, she made it to her new home at the airport. Much easier, quicker and probably cheaper than rigging up a trailer myself.

First time I've been able to step back and get some good full-scale pictures of it.  ...


RV IAC Aerobatic Competition Standings - 2018... It's a wrap!

Congratulations to Brian Pfam who scored a first place finish in the final IAC competition of the season. Brian is the sole RV pilot competing in the Primary category this year and expects to move up to the Sportsman level in 2019.

I just returned from the IAC Fall Board meeting where we reviewed the proposed KNOWN sequences for 2019. We returned the three lower category KNOWNs to the Known Sequence Committee for a re-write. We decided that there was no reason to change the PRIMARY sequence as it worked well in 2018. There may be some who think we should change the PRIMARY sequence every year but the Board feels that PRIMARY is just an introduction to competition and pilots should move up to SPORTSMAN after a year in PRIMARY. We sent the SPORTSMAN sequence back to the committee because there were a couple of figures which would have been difficult to fly by those without inverted systems. (FYI: The policy guidance to the Known Sequence Committee states that... "Proposed Primary and power Sportsman Known sequences shall be flyable by aircraft without inverted fuel or oil systems, in the class of 115 hp Citabrias")

We sent the INTERMEDIATE sequence back to the committee with instructions to omit snap rolls from the KNOWN sequence. (Once again, the policy guidance to the committee states that... "Proposed power Intermediate Known sequences shall be flyable by aircraft in the class of the 150 hp Decathlon.") Many Decathlon aircraft have sustained damage to fuel tanks as a result of doing snap rolls. However, there is still the likelihood of encountering snap rolls in INTERMEDIATE unknown sequences!

I think this is all good news for the RV aerobatic group. There are no barriers to RV competition at the SPORTSMAN level and those without inverted systems have an equal chance of emerging victorious. All it takes is practice, practice, practice! The 2019 competition season will be here before you know it. Get ready!


Christmas Early....new TS Flightline brake lines.

The thought occurred to me to apply some skateboard grip tape to the aluminum surface of the brake pedals.  I'm gonna look for some at Home Depot next time I'm in there.


Personal IFR Limits ...Ed Wishchmeyer PIREP

I very much agree with Rob's basic tenets. Other factors to add in:
* Cumulus clouds give a very rough ride in the RV-9A. If the height from cloud base to top is more than 3 or 4 thousand feet, I avoid them;
* Instead of 500 foot overcast below, I prefer 1,000. Over known flat, open land, maybe lower, but even Iowa has swatches for forest that would be really bad if your first glance was at 500 feet;
* As for approach minimums -- you **** well better be able to fly an approach to minimums!! Weather does change en route. The difference is whether you plan a flight where you anticipate flying to minimums;
* For me, inflight fatigue can be an issue, so time of day, overall energy level, etc are factors;
* Since my canopy doesn't seal well, rain is a factor;
* Another way at looking at go/no-go decisions is to count the number of challenges on the flight: turbulence, crosswinds, solid IFR vs on top or in and out, ATC environment, airspace restrictions, what happens if the autopilot dies, etc. Too many total challenges on the flight, or too many challenges at once are reasons to reconsider whether to go or not. (And it's also real challenging to have the autopilot die when you're busy fussing with the automation and have low situational awareness because of the automation...)

Y'all be careful out there!



Wingtip/aileron/flap alignment ...longranger

The I set the aileron position using a taut string with a loop tied in one end clecoed into the forward tooling hole in the leading edge rib, and the other end taped securely to the trailing edge aileron. I adjusted the angle of the aileron until the string ran past the center of the rest of the tooling holes, then clamped it in place.



November 12, 2018.   Issue #4,696.

Veterans Day (Observed)

The White House, November 11, 1919.

A year ago today our enemies laid down their arms in accordance with an armistice which rendered them impotent to renew hostilities, and gave to the world an assured opportunity to reconstruct its shattered order and to work out in peace a new and juster set of international relations. The soldiers and people of the European Allies had fought and endured for more than four years to uphold the barrier of civilization against the aggressions of armed force. We ourselves had been in the conflict something more than a year and a half.

With splendid forgetfulness of mere personal concerns, we remodeled our industries, concentrated our financial resources, increased our agricultural output, and assembled a great army, so that at the last our power was a decisive factor in the victory. We were able to bring the vast resources, material and moral, of a great and free people to the assistance of our associates in Europe who had suffered and sacrificed without limit in the cause for which we fought.

Out of this victory there arose new possibilities of political freedom and economic concert. The war showed us the strength of great nations acting together for high purposes, and the victory of arms foretells the enduring conquests which can be made in peace when nations act justly and in furtherance of the common interests of men.

To us in America the reflections of Armistice Day will be filled with solemn pride in the heroism of those who died in the country’s service, and with gratitude for the victory, both because of the thing from which it has freed us and because of the opportunity it has given America to show her sympathy with peace and justice in the councils of nations.


[ed. In 1954, the word “Armistice” was replaced with “Veterans” as a way to formally include all Veterans of all American wars in the day of remembrance. dr]


Flight to Half Moon Bay ...kaweeka

I'm practicing video skills and thought I would try a tail mounted GoPro during a flight to Half Moon Bay.


Passing of RV6 pioneer

I want to let the RV community know about the passing of an early RV6 builder/pilot in the Colorado, Mas Yosida, N93MY.
Mas passed away quietly today after a lengthy illness and was known as one of the RV pioneers in the Denver area starting in the early 1990’s. Mas has a long history as an aviation enthusiast having owned a Luscome, C152, Mooney, Bonanza, but couldn’t say enough good things about flying his RV6 since 1994.

No plans yet for services but I can post the information here once I receive additional information. Our thoughts and prayers are with Mas’s family.


Wing Attach 5/8 Distance ...Zazoos RV-6

Working on the right wing. Per the plumb bob it is swept forward 1 inch.

The wing rear spar is fully seated and touching the fuselage. The fuselage rear spar forward piece of the fork is touching the wing rib.

I marked my 5/8 distance grid on both pieces. The inside 5/8 distance on the fuselage is measured from where the two forks mate an become a solid spar.
The inside 5/8 on the wing rear spar is measured from the root rib flange.

1. Since the both spars obviously continue in there respective directions can the inside 5/8 distance be somewhat ignored? Otherwise as you can see in my grid layout I really do not have the room to remove any materials (especially on the wing rear spar).
2. If I'm correct that the inside edge distance can be ignored, is there a good ratio as to how much material to remove to get close to a 1 inch movement at the wing tip?


Newbie Here ...Mike Singer

Hi All,
I am new to the build scene and have some questions that might sound dumb... I am very interested in building a plane but it all seems a bit overwhelming. I ordered the toolbox kit to see what skills are required to assemble something small before investing a considerable amount of time and $$. The kit has a few terms I am unfamiliar with. Is there anything in writing or videos that someone can refer to while learning the skills needed to complete a build. Cleco, Deburr, Dimple, are just a few that I spent some time researching but couldn't get clear answers on.


Paint Update ...bkervaski


Would you fly your RV to Russia? ...Vlad 9A

For adventurous types a question here. Would you like to fly your RV to Russia? A couple of my friends are interesting to visit the western neighbor with their RVs. I made a Day VFR trip from Alaska to Russia two years ago it was a challenge but only first time. Now I am planning another trip and would appreciate an escort.

I am making a short poll here. Take a look make a click. Elaborate if you wish


Status #5 ...romanov pics


TS Flightlines Fuel Lines installed ...mfleming

My TS Flightlines fuel line look great

I fit the wing tank fuel lines today and I'm really happy. Tom does a great job of working with you to get the perfect fit.

All the fuel lines connected to the pump and Andair valve are TS Flightlines. The discharge line can be seen snaking underneath the pump to the firewall.


How to polish exhaust ...wfinnell

I would like to polish my exhaust pipes like the ones in the Kitplanes link below. I remember someone saying something about using the back of emery cloth, or something like that... at least I think I do.

My question, do you polish exhaust pipes in the normal way, or is there a special trick.

I know, I know, this is considered a waste of time by many, but I enjoy polishing metal.


Personal IFR Limts ...jpowell13 PIREP

Flew 5 practice approaches in my 6A today in IFR

This thread is really good for sharing IFR experience. Brad said he flies practice approaches in actual IFR in his 6A if it's allowed by his personal minimums.

My personal minimums are higher than his, so, it's taken a long time for the stars to align, but I did it today.

I needed 6 approaches and a hold, and me and the plane were ready. It was low IFR this morning, with a VFR legal alternate within about 100 miles. By 2pm the ceiling had lifted to about 1000'. It was a solid overcast. This seemed like conditions I could safely deal with so I filed "local IFR" at BTR and set out.

When I took off it was about 3pm, and the sky seemed to be clearing. I was actually afraid that I might not be able to log the approaches, but by the time I got "on top" I saw no holes in the overcast. I hand flew 3 ILS's while I was fresh and then let the autopilot and 400W take over.

After the forth approach, I noticed I was breaking out at about 500', and the light was dimming surprisingly fast. I began to get that feeling you've heard about. You know, "I wish I was down there and not up here." So, I informed approach that I'd be landing after the 5th approach.

By the time I got back below that layer, the runway lights were on, and I think I could have legitimately logged a night landing.

I'd have been a lot safer taking off at noon even though the ceiling was a little lower then. Departing late in the day in late fall just doesn't leave enough daylight for going to an alternate if you have to.

That's the point of my newly added minimum requirement. "Have enough daylight to get to the alternate and make an approach and landing."



Status Report 7A ...jcarne

Well I have changed gears a bit but I'm still getting things done. I decided it was time to do some things in the garage pertaining to the flaps and ailerons since winter is approaching and I can work on those in the house. But first...  My first RV grin! I had to drill some holes on the front deck so I thought why not


Gel-filled Mount Update ...DanH

Quick follow up...

The gel-filled inserts probably failed due to overload, a case of excessive deflection of the mounts due to load and age. Sag in shear allows the middle of the gel bag to get pinched against the ID of the inboard steel rings molded into the doughnuts, and when that happens, compression or tension displacement would tend to peel back the ends of the rubber bag.

I suspect the Lord J-9613-40 mounts seen here are just too soft for a 390 with a metal Hartzell on a sport plane, the result being a lot of sag in only 800 hours. Examine application listings which include Vans, and you'll see the same isolator spec'ed for a 320 with a Catto, and a 360 angle valve with a metal BA. The engine difference is as much as 50 lbs, and the prop difference might add 50 more. The prop center of mass is roughly 28 inches forward of a set of mounts spaced 10 vertically inches apart, so there is a force multiplier too.

The fun starts when trying to select an isolator with slightly increased capacity. None of the three aviation isolator manufacturers publish aviation mount catalogs with technical data, notably shear and compression ratings (lbs per inch). They do publish good data catalogs for hundreds and hundreds of industrial isolators, for every imaginable application except aviation mounts. Go figure.

Lord has the data, but the only way to get it is to identify a particular isolator part number, then ask someone in product support. They won't recommend a specific mount, but will shotgun a few suggestions and state the stiffness values when asked. There is no practical way for a customer to simply select an isolator from a list, based on engineering values.  ...


Panel Rendering ...mountainride looking for input

Panel Renderings Update (Later) ...mountainride

Thank you both for the input. I was able to compress the stack and get the g5 with 15mm clearance at the top. I am worried the switches won't have enough support between the 625. E, I can't tell you how helpful your blog has been.


RV-7A Rebuild ...Europe

Hello VAF,

As most of you know, I am currently building my RV-7 (RV7ForMe Build Log) and I have slowly been working on my wings. But I have not posted much of an update since the summer. There is a reason for this.

A buddy of mine has purchased a about to be finished RV-7A. Meaning, the builder wanted to sell before he finished the aircraft. Because of the 51% rule the builder finished the kit with my buddies wishes in terms of avionics and it all was well until first flight. I am not interested in talking about why this was a good or a bad decision. I am just filling you guys in as to why the current owner doesn't have any building experience.

On first flight there was a problem that caused an engine stoppage. A forced landing on a field caused the dreaded flip of the airplane after the nose gear dug in... Yes there was the anti splat mod but the gear just bent at a different location with the same result. The good news is nobody was hurt.

The poor guy wants nothing more than to fix his new plane but couldn't find anyone who had time to do it. So he decided to tackle this himself. The problem is that as all of you fellow builders know. There is steep learning curve for all of us learning the techniques. And this is where I come in. Not sure how this came about but I was asked to assist and most importantly teach him a little bit what I have learned. Yes, I know I don't have all the skills required here either. I am just building wings but I am sure we can figure this out with enough patience and research.

So I have moved my entire treasury of tools to his shop and we have started to learn how to shoot and buck rivets, how to use a squeezer, how to deburr, how to drill, dimple and so on and so forth... Not sure if I just happen to be a good teacher or he just happens to be a natural but he is very talented and is highly motivated!

I will be semi documenting these repairs here as I thought this might be interesting to some of you as well. Let me know...?

This also means that I will stopping building my own wings for a few months because I simply don't have the time to build at 2 places. I see this as an opportunity to learn a few things for my own airplane and I am still in college and don't have the money for the Fuselage/engine etc anyway.

VAF dues paid until 10/2019
RV7 - Empennage 95% done
RV7 - Wings Started...


TeenFlight PIREP ...greghughespdx

"The TeenFlight program is alive and well, and various similar programs now exist all over the world! At the original Portland TeenFlight, we just sold the 5th TeenFlight RV12, while TeenFlight 6 and TeenFlight 7 are both currently under construction."



November 9, 2018.   Issue #4,695.
  Wishing you and yours a happy, safe and RV-filled weekend!

Order Your Van's Aircraft 2019 Calendars.....$5 (includes S/H)

...(25) calendars will be randomly inserted with what the mothership is calling a 'Golden Ticket'.  Think Willy Wonka...

(1) of these golden tickets will be worth $750 OFF a new tail kit.  (1) of the golden tickets will be worth $250 OFF a new tail kit.  The (23) remaining golden tickets can be redeemed for a free Van's Aircraft shirt or cap from the online store.  Dozens of other calendars randomly chosen will contain stickers.

There are 2,500 calendars and they are $5 each (shipping INCLUDED).  Odds better than the lottery.  Order yours now and good luck!



Flight training in ELSA. IS IT ALLOWED?

Q: I am on the verge of buying a RV12 ELSA for the purpose of teaching my daughter to fly. I am a sport pilot instructor.

Yesterday I read that the FAA has, or is about to, release a NPRM to allow flight training in ELSA .

1. Can I give my daughter flight training leading to her Sport Pilot airplane certificate?

2. If so, are there DPE’s who will give the check ride in an ELSA?

A: As long as there is no compensation to you for use of the airplane, there is no problem in doing what you want to do. Specific limitations are spelled out in the operating limitations that are part of the 8130-7 (airworthiness certificate) for E-LSA aircraft.

You could receive compensation as a flight instructor while giving training though.

The NPRM you mentioned is related to compensation for use of the aircraft (charging rental fees), and more specifically, for aircraft types were there are no SLSA examples for flight schools to use. An example would be 2 seat ultralights that were originally converted to ELSA's during the transition period, so that they were legal aircraft under the new rules.


FS: 1995 RV-6 ....$56K

[ed. It's the one in the November wallpaper calendar pic.  Randy Richmond is the contact.  v/r,dr]


Flap Bracket Rivet Technique: .....RV-14E

It's possible with a mushroom set, but it's tough to do. When I caused a dent in that area, I tried using a 12" long backrivet set on the manufactured head to clear the flap bracket, yet caused another dent. I put those rivet sets aside in favor of another approach...

I used a longer flush rivet set when I did my bottom skins. This is a 5.5" flush set with a 5/8" surface obtained used from Yardstore. They don't appear to carry it any more, but it looks like Brown Tool has the 5.5" flush set. Yardstore also 3.5" and 7.5" long flush sets. The latter is probably too short as it may not fully clear the bracket.  ...

[ed. I don't know what I like more....the black circle on the head or the fact that the work is going on in the living room ;^).  v/r,dr]


Moving a plane into a Mode C Veil, cheapest solution for Transponder and ADS-B

Q: I'm buying my first plane and I have found a plane I like, but it is located in an area where it has never needed a transponder. Full disclosure it is experimental, but not an RV. I am just posting here because 90% of the valuable information Google finds me on experimentals (especially avionics) is from this forum.

My question is, if I do the install, what is the cheapest solution for a transponder and ADS-B on a plane that never had either?

A: (Mel) Cheap is not always economical. Do your research.  I went with Trig. I've had Trig in 2 airplanes over quite a few years and very happy with their system.  Complete ADS-B out including TT22 (Mode S transponder), TN72 (ADS-B compliant GPS), and TA70 (GPS antenna). All for about $2400.

A: (Gary S.)  Others have mentioned the Trig and I agree it is a good value.  I am planning on using the Appareo-Stratus as I feel it is the BEST for my RV-6. Everything in ONE box. Easier for me to retrofit into a flying airplane. I will either buy from Stein or RST sometime in the next few months.  I plan to abandon my Grey Code encoder and use the serial port from my Garmin G5 as my altitude source.


Hangar Clean Up- Sigma-Tek DG, Lyc Ring Gear, Vac System, Flop Tube, Throttle Lever ...items for sale

[ed. Pretty neat way to do it... v/r,dr]


Why Garmin Pathways Can Be Off-Center

"...synthetic vision is heading based (aligned with the nose of the aircraft) since it is meant to give you the same picture that you see out the front window of the aircraft.

When you are flying with a crosswind, the nose of the aircraft can be significantly misaligned with the flight path marker which is showing you "where the aircraft is going".

Since the track of the aircraft is aligned with the course line, not the nose of the aircraft, you will frequently see the flight path marker and pathway boxes (if you use them) off the center of the display when the CDI is centered."


Help me figure out a noise ...Brantel

So a few weeks ago I was on a nice smooth solo flight and I started noticing a noise that I am not used to hearing.

The noise sounds sort of like a high pitched whine similar to alternator noise.

First I have ruled out the alternator. I can hear it without the headsets on. I have also turned off the alternator in flight and the noise remains.

On several flights after first noticing it, I noticed that the volume of this noise appeared to change on different flights. Weird....

So on my last flight I accidently discovered that the noise volume is directly related to how much I open the cabin heat flapper thingy.

If it is closed, the noise almost goes completely away.

If I open it, it increases in volume up to 100% volume when the gets to about 50% open.

If I open the door more than 50% it starts to reduce the volume of the noise.

One theory I have is that it is some sort of air flow noise that is causing something to resonate and the different volume is due to the changes in airflow thru my heat system. (standard Van's with a Robbin's Wings heat muff and a standard stainless heat valve that dumps to the lower cowl when closed)

Another theory is that the angle of the heat valve door is reflecting the noise to my ears when at the proper angle making it sound louder at a certain spot.

Any ideas on what the source of the noise could be?

For context: I have a mechanical fuel pump, 2 Pmags, and a PCU5000X prop governor on my accessory case and that is it. The engine is a bone stock narrow deck carbed O-360.



If you're bored, I found a podcast on the history of my hometown (Waco, TX) that talks about WWI Camp MacArthur (trained troops from Michigan and Wisconsin) and Rich Field (trained 400 pilots to be aerial photographers).

No commercials - kinda rare for a podcast.

Related: www.wacohistory.org


Donation PIREP

  Enjoying this site? I hope so. Please excuse this short update regarding 2018 honor system donations. Historically the amount of donations sent in determine whether our family makes or loses money for the year. So far this year (as of 11/3) 1,139 people were nice enough to donate approximately $21K after taxes (out of the 26,122 VAF Forum accounts and ~30,000 unregistered ‘lurkers’ that regularly visit).
   We haven’t broken even yet this year, so I’m starting to get a little antsy in the pantsy. We are servicing our debt, but we’d like to save a little for the golden years, so as we stare down the final two months of 2018 I hope you don’t mind if I take a moment today to remind those regular readers who haven’t donated this year to please consider doing it. You can use a credit card and be done in around two minutes.
   One of the reasons I’m getting my commercial rating is so I can hopefully fly the occasional side job for a little extra family income. Having things all hang out in a small family business isn’t exactly the smoothest ride, if you were wondering ;^).
   So good morning, enjoy VAF, and while doing so ponder a bit on whether the content you’re looking at here maybe thirty times a month is worth $2.08.  Again, I apologize for the commercial - I’m pretty certain I dislike talking about this more than you dislike reading it. But, I need to speak up a bit now, because the year isn’t looking so great if things stay the way they are. Please give donating some thought...and thank you if you have already.  Thank you very much!
   This small business owner is trying his hardest to bring the RV builders and RV pilots of planet Earth a quality product.  I'd like to keep doing it.
   Thanks for reading this and have a great week,

(and Susie, Audrey and Tate...and Moondog).

FMI: How and why I do the donations the way I do.



November 8, 2018.   Issue #4,694.

Seen at Richmond Aviation.  RV-7A getting some paint love.
Click to enlarge.

Intercylinder baffle grommet (ICB) ...pazmanyflyer

I'm looking to wrap up my hoses for my IO-360-M1B and I have the Lyco ICB and the specified MS35489-20X grommet (from parts catalog) and TS Flightline -4 fuel hose installed. As you can see I have a 1/2" hose in a 3/4" grommet hole. I'm sure this will whistle pretty good as well as rob me of cooling air. Gooping it up with RTV is sloppy and lazy and not what I want to see. Anyone have a part number for the grommet that works with the -4 hose such as the one shown?

Thanks in advance.


How much should I insure my aircraft for? ...VAF Advertiser

This question can be a little tricky. The best way to determine the hull value is to consider what you would pay for an aircraft similar to yours in its current state. There can be serious consequences if the aircraft is not insured at a proper value. Some examples are listed below:

Underinsuring: Let’s say your aircraft is worth $100,000 and you insure it for $60,000. Then you have a prop-strike and some other damage totaling $50,000. This would be a completely repairable situation, however the insurance company would rather total out the aircraft, pay you the $60,000 check, and then sell your aircraft. There is a chance that you could purchase your aircraft back from the insurance company with the intention of repairing it yourself however that wouldn’t leave you with enough claim money to make the necessary repairs. (And most insurance companies do not guarantee the first right of refusal)

Over insuring: Now let’s say your aircraft is worth $100,000 and you insure it for $150,000. Then you have a prop-strike and have significant other damage totaling $90,000. Although you would think your aircraft is totaled and have no desire to fix the pile of scrap, it’s in the insurance companies best interest to write you check for $90,000 to fix it. Because that is more cost effective than paying you the $150,000 check. This particular scenario could also make it much harder to sell the aircraft down the road.

Insurance is meant to put you back financially where you were before the incident happened without bettering yourself. We cannot decide an amount for you so take a look at what some similar models are selling for to give you a good idea of your aircraft’s worth.

Leah Ringeisen, Shanna Linton, & Katie Escalante
Gallagher Aviation


Fail mode? ...tim2542

Can anyone tell me the fail mode seen in this bearing? This is a friends 0-200A Continental, relatively low hours on field overhaul. The pic is the #2 bearing, #3 looks similar but better, #1 looks relatively normal with a little debris damage, nothing serious. The engine was disassembled looking for a low oil pressure issue. Pretty sure this is it, but this damage does not look like lack of oil pressure or debris damage. I’m only guessing but it looks like corrosion or some kind of plating failure. The tin babbit is all gone on this one, and much of the copper. The crank looks decent, probably will clean up with polish only. Information from the previous overhaul is sketchy, not even sure the bearings were replaced.


Some Avionics Shelf Ideas

I fabricated a shelf and some rails.  Sadly, don't have pics of it installed ... basically this is just inside the glove box opening.


Great place to put stuff if you aren't going to have a glove box and don't anticipate accessing whatever you're going put there much, if at all. I put my SkyRadar DX there on a "shelf" made of angle much like bkervaski:


Leaking fuel vent line in tailcone ...John C

I started smelling fuel during power back after takeoff or when I opened the canopy while taxiing on the ground. In flight, opening the heat vent or the side vents quickly cleared the smell. The usual sources, such as carberator bowl gasket or spitting fuel out the carburetor vent line were clean and dry.

Finally checked the fuel tank vent line aft of the bulkhead. Found where the fuel had been collecting. Notice the tightness of the small vent line. It had shrunk a substantial amount as slack in the line was gone.  ...


Press Release: TRIG Avionics


Reference Pics RE: SB 18-09-17 ...Greg @ Mothership

"...These reference images are to hopefully provide some additional location context for those reviewing the 18-09-17 service bulletin. These particular photos are of the Van's factory demo RV-14. Cracks were found on both of our RV-14 demo aircraft (conventional and tricycle models) here at the factory, as was described earlier. No meaningful difference between the two aircraft in terms of cracks/size/location/etc."

FMI: SB 18-09-17


Some More Brake Line Replacement Progress ...16yr old RV-6.



November 7, 2018.   Issue #4,693.

RV-10 vs Piper Comanche 260-B ...Ivan Kristensen

In 1990 I bought a 1968 Comanche 260-B, I flew it 1500 hours before selling it in 2002. Yesterday I saw it for the first time, at the Orillia, ON airport, since I sold it.  The airplane still looks great with the paint job I put on it in the late 1990's. I also overhauled the engine and added several new instruments in the panel.  ...


CHT numbers in the 14 ...Nova RV

For the guys already flying, are any of you having high CHT issues? Yesterday was about 59 degrees OAT and I never saw CHT numbers over 300, mostly mid-high 200s (all cylinders pretty consistently close). I'm not complaining but my tech helpers who both have 7s and high CHT issues thought I must have some reading errors to be that low and I don't recall anyone with a 14 posting about high CHT issues. I was flying close to WOT and full rich as these were the first flights. Can I solicit some real world CHT numbers from you guys please?
Chris Moon


Failed Mount Isolators ...DanH

Engine seemed a bit shaky recently, so today the cowl came off for a look. Problem wasn't hard to find:   ...


New Guy Chimes In ...London

Experimental kit airplane in europe ...

Hi, im new here. nice forum! i wanted to ask a few questions on experimental kits i have. Ive been doing some online research without success.

Im looking to own an airplane and my mission is to tour europe. im looking to do this at 140-150 kts in a 4 seater airplane

Im eu citizen and i have a spanish PPL EASA.

Because of the nature of my job i tend to move within EASA . Ive been living in uk for 2.5yrs and now ive been in Germany for 6 months.
I dont know where i might relocate in the future

ive looked at Arrows and Mooneys buy its hard to find something good that you dont have to rebuild the engine after purchase.

lately ive being looking at the experimental scene, specially the Vans RV10 and Sling 4 TSI
Also because one of my life dreams and goals would be to build an airplane.

Regarding regulations, what are those in Europe?

If i buy a RV10 or sling 4 kit, (or quickbuild possibly) build it, and register it in spain/germany/uk
Can i fly internationally within EASA?
Can i fly night time?
Can i fly IFR?
Can i fly outside EASA?
What are the benefits regarding maintenance? is the owner/pilot able to conduct its own maintenance? (one of the mayor benefits of experimental in EEUU)

What other limitations are there to know?

thanks again.


Miles: Canopy Glued ...dwranda

Finally got the canopy glued on with sikaflex. Definitely not as neat of a job as some guys build sites I follow. Now I can take it into my basement and do more detail work on it so it looks better. Then I will fiberglass the front edge. I will be listing the canopy clamps if anyone wants them. I got them from Av8torTom and will pass them along free to whoever wants to use them next.


Bruce Bohannon Training PIREP

Outstanding training by Bruce Bohannon

I am in the process of buying a really nice RV8 (hopefully if all goes well I will close by the end of the week). I needed some transition training and Bruce was recommended. I have only about 3 hours of tail wheel, Beaver, Otter and a Cub all about an hour each.

Some background on me, not to brag on myself as I feel a bit of it was timing on my part, but to qualify my remarks on Bruce.

I began flight school in the T-34C as a young naval aviator to be, went to the T-45C, then flew Harriers. I had a boat deployment, dirt deployment, racked up the quals and went on to be an instructor at the RAG. From there I went to Naval Test Pilot School; prior to starting TPS I got some training from PIT USAF IPs in the T-38, and some T6 training from the Navy. At TPS I got to fly things from a mig15 to a super hornet, some tail draggers, gliders, helos, warbirds, etc. By far some of the best training I had was at TPS, we got to go touch airplanes and really learn about aero, stuff that wasn't typically taught in a text book or a lecture hall. Went on to test the F-35; trained by some very experienced test pilots. Got trained in the Legacy and Super hornet by the Navy. I left the Marine Corps early, went to American got trained and flew the bus for a bit; then to the guard to fly RC-26, received initial training on that from Flight Safety and more from the guard; now I am a Flight Test Captain at United typed in the Bus, 737, and 756.

So onto Bruce. I asked for transition training in the RV8, but needed a tailwheel endorsement as well. So today we started in his cub. Prior to that he insisted on giving me extensive training on the ground. Through the years of training, I knew to approach with an open mind. When I pulled up I saw on older gentlemen, looked like he might have been someone who had been bailing hay or working on a fence line. His place wasn't anything fancy (but I'd love to have his setup with all planes included). I got a handshake and welcome, then we walked into the hangar and I really can't tell you when precisely the ground school started. We started with some casual conversation about my background, some other things, and it was probably 3 to 5 minutes after "class" had officially started before I realized he was teaching me. All the things I have been taught about how to instruct and getting folks attention, get them interested he did so eloquently to me that I didn't even notice he had done it and had my undivided attention; it didn't even seem like he tried. I kept wanting to open my backpack and get my notebook out to write all the good information down, but I wasn't willing to miss anything he was saying.

So onto what I think was 2.5-3 hours of ground school; I know I showed up at 0900 and it was about 1300 when I left and we flew for an hour. I couldn't tell you how long ground training actually was, it felt like 30 minutes at best; again because I couldn't stop listening I wanted more. Didn't feel short because of content, just his delivery and method of explaining things made sense. I am not the expert in aviation; but I have had a bit of training and experience, he was dead on accurate with his theory and science. He explained things with physics and aerodynamics, but in a way that was easy to understood with no fluff. His instruction on how things worked was as good if not better than some of the ground training I had at Test Pilot School; far superior to any other military or civilian ground school I have had. Had he not told me his level of education, based on his instruction I would have assumed he had been to at least grad school, instructed for most of his life, and been involved with some higher level flight training program.

Onto the flight in the cub. He has a nice setup for the cub. It was a bit of a gusty day. Instruction in the plane was also outstanding. He used great commands, kept my attention, gave correction when needed, and pointed out when things were going well to boost confidence. It wasn't long and things clicked and were going well. I still had a tendency to over correct some and work harder than I needed to, as he told me I would. But he kept me improving until we were done.

Debrief was also outstanding. Covered what I did well, covered where I could improve. He also showed how humble he was again, and took credit for my over controlling and said he should have said some different things in ground school.

Bruce is a very talented and smart man (though he will never admit it), and well worth the trip (luckily he is 45 minutes from me). I would have taken vacation time, paid for the plane ticket and hotel knowing what I know now. I haven't even got in the 8 yet, plan is Wednesday, but I can tell already this is probably going to be one of if not the best place it get RV8 transition training.

I'll update as I get more training....

Mark Andrew Tacquard


Some brake line progress

...all the fiberglass off.  New lines being shown the ropes.


Do I want Steps? (RV-14 Taildragger) ...Mark Elliot (Minneaopolis, MN)

Need to make a decision.......help? Do I need / want steps on a -14 taildragger? I know it's my choice, but for those of you who fly the -14 Taildragger what do you prefer?

if its a 14A doesn't matter your opinion - sorry

A: At very least the steps would be an indicator to onlookers .. maybe avoid somebody stepping on a flap and causing some grief

A: ...But I'm 36 years old and 6'2". Check back in 50 years if I still think I don't need a step.

A: It depends on your age and height. I am 75 and short. I need them. You will get older and your passengers may already be there.
I designed the steps for my -6. They go straight out behind the flaps, therefore they have no welds. Very simple. Give me your email and I'll send pics if interested.

A: I'm building a 9, not a 14, but I did some research on this topic. Here's what I found:
1) Of the folks with tailwheels, most did not have them.
2) The ones that did have them wouldn't have it without.
3) Of the ones that did not have them there were some that wished they did.
4) There where some that went through the pain of installing them post build and thought it was definitely worth it.
5) Bob Axsom made his removeable, and speed testing showed less than 1mph difference with and without.

As a result, I am building with them. HTH,



KC Flight Formation Team Video (Unofficial) ...Xkuzme1

I put together some of my personal videos of the 2018 season. We have much better pics as a team, but I like to do a “year in review”.


Fuel and Oil Hose Life?

Q: Do you guys service your hoses based on a 10 year manufacturer recommendation? It came up at my annual this month. The hoses have no signs of wear or imminent failure but they are 10 years old. Thanks!

A: I replaced all my hoses at 6 years. I think Cessna and Piper service manuals say 5 years.  I replaced my hoses with teflon-lined hoses from TS Flightlines. I think those are not life limited. Plan to leave them until engine overhaul.

A: I did mine at 10 years. TS Flight line made me a full set and re-used by fittings, so the price was not bad.

A: I won't discourage anyone from replacing hoses at reasonable intervals. But just as a datapoint, both times I have replaced/rebuilt the fuel and oil hoses on my RV-6, the stainless braided Aeroquip hose I took off the plane after several years in service was indistinguishable from the new hose stock I used for replacement. Still flexible, if I handed both old and new hose to someone they would not have been able to tell which was several years old.  But I still rebuild the hoses inside of ten years for peace of mind.



November 6, 2018.   Issue #4,692.

First Flight ...Chris Moon RV-14A (Leesburg, VA)

First two flights completed, perfect weather and successful flights with only a couple small issues to clear up. Love this plane!


How to Find a Paint Code?

Q: Looking to paint my bird once the panel is done.  Does anyone know how to get paint codes for Cirrus? I am in love with there silver on the "perception" aircraft. black nose and straight silver body. so Sexy.

A: These are most likely Sherwin Williams Skyscape's colors. You can get a color chart from them for the stock colors they have. Very sex paint. Good chance the Cirrus colors are custom.  You can take a class from Sherwin Williams were they shoot this paint.

A: Found a document via a friend in Cirrus maintenance service center.  Send me a mail


RV-14E's VIRB Mount in RV-14 ...and pics


I mounted dual USB power socket adjacent to my canopy handle. I created a mount for the socket out of some 1/8" aluminum and some angle. It is attached with nylon hardware through the tooling hole on the C-01405-R Aft Canopy Frame.  ...


Questions about RV14A please

Hi All,

I am thinking about building a 14A and wanted some advice on things please. As I will be exporting the kit and building it abroad, I wanted to make sure I get everything I need while I can.

1. What size axle does the RV14A use ? I have some brand new grove brakes, wheels and tyres left over from a Kitfox 7 build. The axles are 1.25" and the brake hardware is Grove 65-211. The tyres are 6's at the back and a 5 at the front. I have no intention of fitting the wheel pants on the 14A as the strips I go into are sometimes very rough. I would like the larger 6 tyres on the back if possible. Would I be able to use these brakes and tyres on the RV14A in place of the stock stuff?

2. I would like to install dual P-mags and use the automotive plugs in the IO390. Is this something that Lycoming can do for me or should I order from e-mag and do the install myself with 2 of the gears. I presume I can then delete the standard Mags and harness from the order to Lycoming. Also, do I need the short or long reach adaptors for the automotive plugs?

3. I was planning on going quick build and I understand that the kit is very easy to understand and put together. I have just built an RV10, so I have all the tools and some idea about what I am doing. How much time will the QB save compared to the SB version? Is it worth the extra money?

3. Are there any recommended upgrades / aftermarket parts that I should change on the RV14A. I was going to get the ready to fit brake lines and FWF hoses from Aircraft Speciality and the uprated flap motor with built in position sensor from Pat. What else should I consider changing from stock?

Thanks in advance for you replies.




RV-8 Status Report ...j-red

11/05/18 Update Cont.
If I never sand a piece of fiberglass in my life, it will be too soon!  We’ve had some warm days recently, so the opportunity was taken to do some priming and painting. This required filling the weave of the cowling with several skin coats of micro followed by sanding, then thinned epoxy, followed by sanding, and then epoxy primer and, you guessed it, more sanding. Really disappointed in the color coat. I’ll probably need to have a professional re-do it in the future, but for now it will have to do.  ...


Using Airplane Stuff to Pull a Truck Up an Incline

...seen at 52F Monday.  Gary Patner (RV-8) manning the handles and son John doing his impersonation of ballast.  BTW, it worked surprisingly well <g>.



November 5, 2018.   Issue #4,691.
  Enjoying this site? I hope so. Please excuse this short update regarding 2018 honor system donations. Historically the amount of donations sent in determine whether our family makes or loses money for the year. So far this year 1,139 people were nice enough to donate approximately $21K after taxes (out of the 26,122 VAF Forum accounts and ~30,000 unregistered ‘lurkers’ that regularly visit).
   We haven’t broken even yet this year, so I’m starting to get a little antsy in the pantsy. We are servicing our debt, but we’d like to save a little for the golden years, so as we stare down the final two months of 2018 I hope you don’t mind if I take a moment today to remind those regular readers who haven’t donated this year to please consider doing it. You can use a credit card and be done in around two minutes.
   One of the reasons I’m getting my commercial rating is so I can hopefully fly the occasional side job for a little extra family income. Having things all hang out in a small family business isn’t exactly the smoothest ride, if you were wondering ;^).
   So good morning, enjoy Monday’s edition, and while doing so ponder a bit on whether the content you’re looking at here maybe thirty times a month is worth $2.08.  Again, I apologize for the commercial - I’m pretty certain I dislike talking about this more than you dislike reading it. But, I need to speak up a bit now, because the year isn’t looking so great if things stay the way they are. Please give donating some thought...and thank you if you have already.  Thank you very much!
   This small business owner is trying his hardest to bring the RV builders and RV pilots of planet Earth a quality product.  I'd like to keep doing it.
   Thanks for reading this and have a great week,

(and Susie, Audrey and Tate...and Moondog).

FMI: How and why I do the donations the way I do.


BC Coastal Mountain Flight ...mbauer RV-6

Flew down to Boise, ID just before Memorial Weekend 2017. Reason was to pick up my RV that was "stranded" there during a flight back to Alaska.

Purchased my RV-6 on-line. Through VAF was able to get a good pre-buy inspection done. Then during the last week of March 2017 I flew down by airline to get it.

After 5-hours for a PIC check ride (insurance qualification) I left Jackson, CA for Phoenix, AZ.

After visiting friends and relatives all over the western states, I headed back to Alaska.  ...

(8) More Videos
- More Video of the mountains
- Back Near Civilization Again (video)
- Border Crossing: Canada to Alaska (video)
- 44 Miles to Petersburg (video)
- Crossing From Alaska Southeast Islands to the Mainland (video)
- More Video of Mt. Crillon (video)
- Fairweather Mountain (video)
- Fairweather mountain to Yakutat (video)


Good Memories ...Vlad 9A

Enjoyed your short video clips very much Mike! What a great memories. Coastal mountains are spectacular this is my 2014 views of Mt Fairweather.


New Guy Chimes In...Rich Pulman

First post...

I've been lurking here for a year or so, but recently bought an RV-3A and decided it was time to join up and support the site.

I want to dedicate my first post to Steve Hurlburt who made the purchase of the RV-3A (my first owned aircraft) a much less stressful experience.

Steve is a member of this site and has built several RVs. He happened to live in the same city where the RV-3A was listed for sale. Although I only know Steve through this site, he agreed to perform a pre-buy inspection on my behalf, including a test flight. He then provided me with in-depth written reports on both. And he did this without any expectation of compensation! I was truly impressed with his incredible support. His feedback allowed me to proceed with the purchase knowing I wouldn't be disappointed.

As I begin my own journey into the Van's world, it's encouraging to know there are such fine people around who are willing to help out when asked.

Thanks Steve. I really appreciate your professionalism and kindness.


RV White Pages Updated and Current


Milestone ...Greg Niehues

IFR checkride!  Might be old hat for some, but it's new stuff to me. I passed my IFR checkride this morning in my glass-panel RV9A with flying colors. Life is good!


Status ...romanov (Isreal)

The Vertical stabilizer is a good place to start: it is designed out of few parts for the sceleton and one bended piece of an aluminium skin. The construction of the web is a pretty straight-forward thing: the rear spar and the front spar are connected via 3 ribs. A couple of reinforcement plates to make their reinforcment thing are in some critical points, and the web is ready for the skin.  ...


RV Hotel Updated and Current ...places to stay for weary RVators


New Guy Chimes In ...Randy Lervold

Hello RV-12 forum,

I've just started into an RV-12iS project and would like to introduce myself and let you know what I'm up to with this build. Of course I'll be seeking assistance from those here who have gone before me, and I promise to pay it forward once I'm done - that's one of the things that make the RV world so special and these forums so great.

I'm not new to the RV world but have been away for awhile. I've built an RV-8 and an RV-3B, then took a break for about 9 years with a stint at CubCrafters. I've now joined Dynon, moved back to the Seattle area where I'm originally from, and no longer have any company aircraft to fly whenever I want. Hmm, need to fix that.

Further, with my new role at Dynon I need to be fully up on the avionics world which of course spans both VFR and IFR ops. While I'm fully up on all of today's EFIS systems I'm not fully educated on much of the IFR functionality as I've never taken the time to get my instrument rating. I've been intending to get it for literally about 20 years but have just been busy with RVs, formation flying, glider rating/flying, and even seaplanes via Cubs. It's time to fix both issues so I've started into my instrument rating training and also made the decision to build an RV-12iS.

My intent with the -12 though is a bit different from most builds I read about here. I specifically want an IFR-capable aircraft both for work and personal use reasons. And, having built two E-AB aircraft, I'm a bit spoiled by the flexibility the builder has in configuring the aircraft. Finally, no doubt I'll be doing some product testing as we at Dynon continue developing cool new products. I will therefore build the -12 as an E-AB and will make some minor mods, though of course nothing whatsoever structural. As I've done before I plan to document the build with a web site, and I'll get into my specific plans there.

So, I'll be spending some time here seeking your advice and counsel. And please bear with me as I get my web site up to speed as my immediate priority is to get my instrument rating done. I am now digging out all my old tools and getting my workspace set up and will be starting into the emp kit, which has already arrived, here shortly.

Feels good to be back!


Links Added to the Wx Page

...some maps couldn't be embedded, so the links were added (up top).



Time for some more odds and ends.

Decided to drill the air vent intakes to the fuse. I will proseal but I wanted a few rivets to hold them as well.


And More Status ...jcarne

Well the work continues. I'm ordering all of the stuff for fireproofing the fire wall, I'm going with .010" titanium because a sheet of it is still cheaper than the 0.005" foil from Titanium Goat that some have used. I also don't like the look of the 0.002" stainless that a lot of people use. I know I know, no one will ever see it; but that's not true, I will see it... I guess this also means I have a somewhat large order to place with Van's for things like cables and battery box.  ...


Elevator Trailing Edge Dent (Oops) ...Strikefinder

Hi folks,

Well, a momentary lack of sense while rearranging the very tight garage workspace led to my leaning my right elevator haphazardly against an unstable structure, which predictably (in hindsight), caused it to tip over and hit the edge of my wing stand pretty hard. After many cuss words, I found the dent below in the trailing edge (which led to more cuss words).  ...



November 2, 2018.   Issue #4,690.
  Wishing you and yours a happy, safe and RV-filled weekend.

I Love Mondays! ...chrispratt

What better way to spend a beautiful Monday than some formation flying on the way to get barbecue. I have a friend visiting from Thailand and wanted to introduce him to the RV world and create a “Kodak Moment” (as they used to say when Kodak was still around).

I bribed my friend Danny King (RV-8 Beautiful Doll) to fly formation with the offer of free barbecue from The Hard 8 in Stephenville, Texas. It was a tough negotiation but he finally caved . My wife – the photographer - sat in back of Danny’s -8 while I took our friend with me.  ...


TS Flightlines Replacement Brake Lines Arrive

...via Tom and they look GREAT!  My leaking 16yr old lines are headed for file 13.  I know what I'm working on this weekend <g>.  Beautiful looking hoses Tom!  Thank you!

click to enlarge

click to enlarge


Question about forward end of fuel line F-12127A in Section 27iS page 7

...subpar_bucker (RV-12)

Is anyone else having trouble aligning the tube with the bypass fitting assembly? I realized after cutting and flaring that I did not bend the tubing forward of the bulkhead in order to align it squarely with the bypass fitting

Here's a picture that (hopefully) illustrates the issue. I haven't tried posting a picture prior so apologies if this doesn't work. I can get the nut to reach its mating portion of the bypass fitting but it just doesn't want to thread. I wasn't very aggressive with the amount of force I applied - looking for advice on whether this should go together or if I need to redo this line.


Yet another 9A speed thread ...gfb

OK, so finally finished my wheelpants and dialing in the prop.
RV-9A, Titan IO-340 180hp, WW GA-200L prop

75% 2650rpm 9.2gph 164kts TAS 8500' (189mph)
65% 2540rpm 7.9gph 154kts TAS 8500' (177mph)
56% 2440rpm 6.8gph 149kts TAS 8500' (171mph)
50% 2400rpm 6.0gph 146kts TAS 8500' (168mph)

I was expecting a bit more at the top end; I was at full throttle, peak EGT.
Van's website numbers for 160hp list 186mph at 75%, I figured the extra 20hp would buy me 10mph?  ...


MS21042 nut running torque ...TASEsq

Just thought I would share my findings with others to make sure everyone else uses about the same running torque?

Please let me know if you are the same / significantly different!!

Setup was an AN3 or AN4 bolt held in a drill press vice which was clamped to the table so it couldn’t rotate. I then ran the nut onto the bolt so that about 1 thread was showing out the end (so full contact with but threads by the bolt). The scale was read while the nut was in motion, and the wrench was held at the end on the black knob.

Findings were (measured running torque):
AN3 / MS21042-3: 10 in/lbs  ...


Nov/Dec '18 FAA Safety Briefing Online


An Argument for a Carb Temperature Sensor

Carb air temp can be used to check if your carb heat is working. One of the guys on the field noticed with his 6A that the carb heat gave him about a 50 degree rise on the ground but in the air he had no rise in temp unless he pulled hard on the carb heat knob and held it. He had a ratcheting cable but not locking. I don't have CAT in my 7 yet but I did hook up the carb heat with a locking cable which does give an RPM drop both on the ground and in the air. There is a chart for probable carb ice condition which you could use to set your Dynon range. FWIW


From the Mothership FB page...


Not RV...but WOW!

Footage from the Soyuz launch on 10/11 showing booster hitting core stack (why it aborted).  About 1min 20sec into the clip...



November 1, 2018.   Issue #4,689.

  The CPA asked me sometime back how buying a drone is a business expense.  May I present the November wallpaper calendar as my answer ;^).  This RV-6 is coming up for sale in a week or so.  Local A&P,IA Randy 'Monkey' Richmond is helping a guy on our field get it ready.  I was taking a few pics for him to help out the other day, and when I saw this pic my first thought was November Wallpaper Calendar.  Easy choice.  I like the shadow of the plane and the hangar door that creates a backdrop for the text.  The concrete expansion joints being parallel and perpendicular to the shadow was icing.  Maybe I'm overthinking this.  Support the farts Arts!
  If this pic helps sell it I get a free lunch.  And not just a Whataburger...we're talking Hard Eight BBQ.  So, you know....somebody buy it please. ;^)

(A review of the piece shown above)
"As an advocate of the Big Mac Aesthetic, I feel that the aura of the biomorphic forms brings within the realm of discourse the distinctive formal juxtapositions."
- - Instant Art Critique Phrase Generator



Booth #09.  DeLand, FL.  Nov 1-3.


What's these extra holes for?...Brantel RV-10

I am working on my elevators and got to the point of match drilling the elevator horns to the front spars and root ribs.  I noticed 2 extra holes aft of the web on the elevator horns that do not look like typical tooling holes.  What are these extra holes for?


What is This?

On the Raleigh/Durham, N CAR Jepp chart.  'TDG V' aircraft?


So close! Exciting! ...bkervaski -14 vid

Final stages of paint!


Damaged dimple on a skin, is it fatal?

Hi Guys ,

I need your educated opinion here, we damaged a
dimpled holes a bit, what do you think is it so
bad that requires a new skin?

here is what happened:

We just started to scuff the VS skin (VS-801PP)
as a preparation for priming / coating.

Accidentaly we applied too much force on the inner side where dimpled cone is.

As a result there are a few dimpled holes that are a bit larger now: (about 0.15mm) and they are a bit flatened , you can see the results on pictures attached. Also
have to add here that the front side of the holes is
completely fine.

Please advise if it may cause a problem or may affect the structure strenght.

The big question now is , whether we can continue with that skin or we have to order a new one.

Looking forward for your recommendations