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Search: Posts Made By: Walt
Forum: GPS Yesterday, 06:53 PM
Replies: 7
Views: 304
Posted By Walt
I’ve done my share of STC installs as both an IA...

I’ve done my share of STC installs as both an IA and certified repair station, the only document that gets sent to FAA is the 337, and they don’t send or approve anything back, that’s just a record...
Forum: RV-14 Yesterday, 06:39 PM
Replies: 21
Views: 1,228
Posted By Walt
Don’t forget the PMAG limitation with the -12,...

Don’t forget the PMAG limitation with the -12, and the extra weight of the -9 would help with CG.
Forum: RV Ongoing Maintenance Issues Yesterday, 01:17 PM
Replies: 6
Views: 156
Posted By Walt
All aircraft altitudes are based on barometric...

All aircraft altitudes are based on barometric which will be different than GPS altitudes, with the correct barometric setting altimeters are quite accurate.
Forum: RV Ongoing Maintenance Issues Yesterday, 01:14 PM
Replies: 6
Views: 156
Posted By Walt
The 327 has to get it's mode C altitude data from...

The 327 has to get it's mode C altitude data from somewhere, which would be either the Dynon or a separate encoder (the echo has no encoder).
My guess would be a separate encoder is getting flakey or...
Forum: RV General Discussion/News Yesterday, 06:17 AM
Replies: 8
Views: 405
Posted By Walt
You might try swapping to another cyl and see how...

You might try swapping to another cyl and see how it behaves.
Forum: RV Building Tips/Techniques Yesterday, 06:08 AM
Replies: 6
Views: 385
Posted By Walt
Aluminum into Aluminum is bad mojo for pipe...

Aluminum into Aluminum is bad mojo for pipe threads.
Forum: RV-14 05-20-2022, 07:44 PM
Replies: 21
Views: 1,228
Posted By Walt
No need to freak out, lots of folks use the -12,...

No need to freak out, lots of folks use the -12, the cost for the -9 is 'only' about 1k more, to me it was worth it.
If you plan on ever running Pmags or any other EI then the -12 is not recommended.
Forum: RV-14 05-20-2022, 07:21 PM
Replies: 21
Views: 1,228
Posted By Walt
Suggest you reach out to McFarlane prop guys...

Suggest you reach out to McFarlane prop guys (very experienced with MT) or MT itself for more info.

Note the warning on Van's page (not approved for EI):

WARNING: Damage or excessive wear to the...
Forum: RV-14 05-20-2022, 04:39 PM
Replies: 21
Views: 1,228
Posted By Walt
You may want to talk to the folks at McFarlane...

You may want to talk to the folks at McFarlane about your choice (plus I think they can offer a better price than Van's).
No restriction on the MTV-9, probably less maintenance due to the heavy duty...
Forum: Electrical Systems 05-20-2022, 10:55 AM
Replies: 57
Views: 4,552
Posted By Walt
Yes, I believe they will all come with the new...

Yes, I believe they will all come with the new nose piece now.
Forum: Electrical Systems 05-19-2022, 05:26 PM
Replies: 57
Views: 4,552
Posted By Walt
Yes with a wrap of silicone tape under the clamps...

Yes with a wrap of silicone tape under the clamps to ensure it doesn’t move.
Forum: Electrical Systems 05-19-2022, 04:40 PM
Replies: 57
Views: 4,552
Posted By Walt
Install was easy, getting the larger B&C off...

Install was easy, getting the larger B&C off required removing the mag for access. So far I like what I see and think it will be a winner. I was surprised how quickly it picked up the load compared...
Forum: RV Ongoing Maintenance Issues 05-19-2022, 02:31 PM
Replies: 11
Views: 1,677
Posted By Walt
SB 14-02-05 to inspect this area for cracking...

SB 14-02-05 to inspect this area for cracking (likely caused by loose jam nuts) was issued 2/2014.

Doesn't speak real highly of the maintenance personal. That's the problem with hiring an A&P to do...
Forum: Glass Cockpit 05-18-2022, 06:47 AM
Replies: 16
Views: 3,424
Posted By Walt
Having done tons of alt checks and calibrations,...

Having done tons of alt checks and calibrations, I don’t think an offset is a great idea as it offsets the entire range. Some other vendors offer that but I often end up with a full cal if I dial in...
Forum: COMM 05-17-2022, 03:34 PM
Replies: 3
Views: 145
Posted By Walt
Turn down the mic gain. A mic muff might also...

Turn down the mic gain. A mic muff might also help if you can’t find a gain adjustment.
Forum: RV General Discussion/News 05-17-2022, 03:26 PM
Replies: 21
Views: 1,767
Posted By Walt
Are you sure they were “topped off”, if you pump...

Are you sure they were “topped off”, if you pump fuel in fast enough it can’t displace the air quick enough and will “appear” full and spit fuel out the filler. You have to fuel an RV much slower...
Forum: RV Ongoing Maintenance Issues 05-17-2022, 01:25 PM
Replies: 14
Views: 588
Posted By Walt
I would suspect movement between the bulkhead and...

I would suspect movement between the bulkhead and doubler, possibly from drill burrs or debris trapped between the surfaces allowing movement.
Forum: Safety 05-17-2022, 09:29 AM
Replies: 34
Views: 3,628
Posted By Walt
This same clearance issue can be found on all RV...

This same clearance issue can be found on all RV models not just the 10 if the holes were not "adjusted' to provide clearance, I have fixed numerous ones.
Forum: RV General Discussion/News 05-17-2022, 06:44 AM
Replies: 19
Views: 2,272
Posted By Walt
You could still be successful with the 10k...

You could still be successful with the 10k aircraft still out there, especially if you had a “drop in” retrofit kit for us.
Forum: Propellers 05-16-2022, 07:17 AM
Replies: 13
Views: 958
Posted By Walt
The 3 blade is the only one that has been...

The 3 blade is the only one that has been tested/certified on the high compression IO-370 engine.
Whirlwind, which I also looked at had the same advice 3 blade for the 370 was...
Forum: RV Ongoing Maintenance Issues 05-15-2022, 07:17 AM
Replies: 7
Views: 314
Posted By Walt
Yep, think retractable gear, good luck doing a...

Yep, think retractable gear, good luck doing a W&B with the gear up :D
Forum: RV Ongoing Maintenance Issues 05-14-2022, 08:30 PM
Replies: 10
Views: 868
Posted By Walt
Suggest you go back to the AFP filter, I use a...

Suggest you go back to the AFP filter, I use a Flow-ezy myself. The Andair is to small IMO.
Forum: RV-14 05-14-2022, 11:12 AM
Replies: 21
Views: 1,228
Posted By Walt
Just installed this MTV-9 recently, love...

Just installed this MTV-9 recently, love it.

https://photos.smugmug.com/Misc-stuff/i-jktLpzF/0/b8810b7d/XL/2022050617540396-2522085236459514063-IMG_1800-XL.jpg
Forum: Traditional Aircraft Engines 05-12-2022, 11:51 AM
Replies: 8
Views: 628
Posted By Walt
Ask SAP (Superior Air Parts) how that worked out...

Ask SAP (Superior Air Parts) how that worked out for them :eek:
Forum: Autopilots 05-12-2022, 04:42 AM
Replies: 12
Views: 1,229
Posted By Walt
Yep, roll compensating for a yaw offset.

Yep, roll compensating for a yaw offset.
Forum: Electrical Systems 05-11-2022, 08:57 PM
Replies: 57
Views: 4,552
Posted By Walt
So what is your expectation on bearing/unit...

So what is your expectation on bearing/unit TBO?
I also didn’t see any info on warranty in the manual or on the website.
As an early adopter I want to know that you’re going to stand behind your...
Forum: RV General Discussion/News 05-11-2022, 08:10 PM
Replies: 26
Views: 2,322
Posted By Walt
I travel with a few tools mainly to help my...

I travel with a few tools mainly to help my friends, never needed any myself.
(I prefer to do preventative maintenance to avoid such things, and the wife prefers I don’t work on the plane while we’re...
Forum: Electrical Systems 05-11-2022, 12:48 PM
Replies: 57
Views: 4,552
Posted By Walt
This alt just like other BU alternators connects...

This alt just like other BU alternators connects via the vacuum pad drive which is standard on Lycoming.
If the alt seizes for example (worst case) the shear coupling disconnects is all, there are...
Forum: Electrical Systems 05-09-2022, 07:09 AM
Replies: 57
Views: 4,552
Posted By Walt
I just ordered one to replace my B&C backup unit,...

I just ordered one to replace my B&C backup unit, main reason was to get 3-4 extra pounds off the nose. Looks like a good unit and Bill has done his homework. I also wanted something I could...
Forum: RV-7/7A 05-09-2022, 06:47 AM
Replies: 6
Views: 331
Posted By Walt
FYI, from the AFP manual: WARNING Airflow...

FYI, from the AFP manual:

WARNING
Airflow Performance and Bendix/Precision fuel injection systems are non-returning systems. In the event that a tank is run dry in flight, an air lock will be formed...
Forum: RV Friends Who Have Passed On 05-08-2022, 07:08 PM
Replies: 16
Views: 4,505
Posted By Walt
Descend into fog without and IFR clearance and...

Descend into fog without and IFR clearance and not being prepared for it is not an option, so at that point, I'd violate and ask permission when able, maybe even declare if they won't give you a...
Forum: RV Building Tips/Techniques 05-08-2022, 05:50 PM
Replies: 16
Views: 1,148
Posted By Walt
In my airline career Boeing/Douglas spec’d std...

In my airline career Boeing/Douglas spec’d std Amp terminals for 90% of connections, engines/pylon req’d sealed splices.

Making folks feel like if they don't environmentally seal all their...
Forum: ADS-B 05-08-2022, 02:37 PM
Replies: 5
Views: 355
Posted By Walt
G3X w/GTX45R is a great combo.

G3X w/GTX45R is a great combo.
Forum: RV Building Tips/Techniques 05-06-2022, 06:41 PM
Replies: 16
Views: 1,148
Posted By Walt
Amp insulated butt splices with the correct...

Amp insulated butt splices with the correct tools, no need for heat shrink, of course it won't hurt if you feel compelled.
Forum: Glass Cockpit 05-05-2022, 05:18 PM
Replies: 1
Views: 530
Posted By Walt
Garmin Panel Porn

New RV14 panel....
(more pics in the RV14 thread :...
Forum: RV-14 05-05-2022, 05:11 PM
Replies: 196
Views: 241,360
Posted By Walt
New RV14 Garmin panel

Complete Garmin panel and airframe wire job, headed back to builder for completion. I have included a couple of behind the panel shots as...
Forum: Glass Cockpit 05-04-2022, 04:52 PM
Replies: 15
Views: 1,404
Posted By Walt
It would seem to me that leaving all those...

It would seem to me that leaving all those shields braided it would get awfully crowded really fast, the audio panel would be way worse than these...

Steve, don't make me redo all this...
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-04-2022, 04:34 PM
Replies: 4
Views: 393
Posted By Walt
Not you.... the scammers that will reach out to...

Not you.... the scammers that will reach out to you with "I have one".
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-04-2022, 03:07 PM
Replies: 4
Views: 393
Posted By Walt
WTB's are big targets for scammers..., just...

WTB's are big targets for scammers..., just saying.
Forum: Electronic Ignition Systems 05-04-2022, 07:19 AM
Replies: 20
Views: 1,568
Posted By Walt
Seems like the 14ga minimum and 10 amp fuse may...

Seems like the 14ga minimum and 10 amp fuse may be a bit of overkill for a unit that draws less than 1 amp.
Especially if your battery is on the firewall.
Forum: Glass Cockpit 05-03-2022, 09:57 PM
Replies: 10
Views: 963
Posted By Walt
How does sitting on table, undisturbed for weeks,...

How does sitting on table, undisturbed for weeks, correlate to the real-world conditions of being installed in a flying aircraft?
Forum: Traditional Aircraft Engines 05-02-2022, 04:50 PM
Replies: 22
Views: 1,669
Posted By Walt
Just as a point of reference, my original engine...

Just as a point of reference, my original engine was from ECI, I ran it for around 500 hrs before the AD came out, ECI replaced all my cylinders with new ones (almost free) and I ran those on the...
Forum: Traditional Aircraft Engines 05-02-2022, 09:13 AM
Replies: 10
Views: 885
Posted By Walt
A new 370 engine will definitely increase the fun...

A new 370 engine will definitely increase the fun factor and aircraft value compared to a rebuilt engine :D
However, I just replaced my Hartzell BA with an MT due to possible issues with the...
Forum: Traditional Aircraft Engines 05-02-2022, 08:40 AM
Replies: 10
Views: 885
Posted By Walt
I'd probably suggest going with their vertical...

I'd probably suggest going with their vertical sump and AFP150 FI system, probably not much more than the carb and FI definitely has a few advantages.
This is the same setup I have (I switched from...
Forum: Traditional Aircraft Engines 05-02-2022, 07:32 AM
Replies: 10
Views: 885
Posted By Walt
I replaced a 360 with a 370, rather than make new...

I replaced a 360 with a 370, rather than make new inner cylinder baffles to fit the taper cylinders I just added some holes to the IB side of the inner baffle and pulled the baffles into place with...
Forum: Propellers 05-01-2022, 06:32 PM
Replies: 13
Views: 958
Posted By Walt
We’ll, I avoid low mp setting at higher...

We’ll, I avoid low mp setting at higher airspeeds, driving the prop/engine with airspeed can cause piston ring flutter and may‘detune’ a counter weighted crank.
Forum: Propellers 05-01-2022, 07:36 AM
Replies: 13
Views: 958
Posted By Walt
The Dynamic balance started at 0.310 which is on...

The Dynamic balance started at 0.310 which is on the high side, finished at 0.011 ips after 4 runs which is a very low level, better than average.
(my goal is 0.05 IPS after balance which is half the...
Forum: Propellers 04-30-2022, 06:49 PM
Replies: 13
Views: 958
Posted By Walt
Flew about 4 hrs today with the new prop, a few...

Flew about 4 hrs today with the new prop, a few observations:

Definitely smoother at all RPM ranges, can dial eng back as far as 2100 or less, which I would never do with the Hartzell and it was...
Forum: Propellers 04-29-2022, 07:06 PM
Replies: 13
Views: 958
Posted By Walt
MT prop/shout out to McFarlane

Ordered on Monday received this beauty on Friday, The service at McFarlane is superb!
Installed and balanced, looking at some test flight’s with it tomorrow.
MTV-9 replacing the Hartzell...
Forum: COMM 04-29-2022, 06:36 PM
Replies: 7
Views: 633
Posted By Walt
Doubt the PTT switch has anything to do with it,...

Doubt the PTT switch has anything to do with it, the pilot headphone/mic wires/jacks are more likely the cause.
When you use the CP ptt those inputs/outputs are separate from the pilots.
My guess is...
Forum: VAF Classifieds (posts in here deleted after 30 days) 04-26-2022, 06:14 PM
Replies: 2
Views: 666
Posted By Walt
FS: Hartzell blended airfoil, C2YR-1BFP/F7497

C2YR-1BFP/F7497 74". Bought new 11/2018 from Van's, has approx 175 hrs on it. Near new condition.
Includes Van's spinner, mounting bulkeads etc., as removed from my aircraft.
Ready to install on...
Forum: Electrical Systems 04-25-2022, 03:41 PM
Replies: 19
Views: 1,181
Posted By Walt
Depending on the cost of avionics you have in the...

Depending on the cost of avionics you have in the panel, a cheap made in China power supply could end up being very expensive.
Unless you have a really good power supply, I suggest folks just run off...
Forum: VAF Classifieds (posts in here deleted after 30 days) 04-25-2022, 10:45 AM
Replies: 7
Views: 1,133
Posted By Walt
Wow! Built 50 RV's??? I'm having trouble with...

Wow! Built 50 RV's??? I'm having trouble with that math for some reason?
Forum: Electrical Systems 04-25-2022, 07:46 AM
Replies: 19
Views: 1,181
Posted By Walt
Those floor mounted rudder pedals are prone to...

Those floor mounted rudder pedals are prone to failure (see SB), I assume that is why it's circled?
Forum: RV General Discussion/News 04-20-2022, 03:50 PM
Replies: 15
Views: 2,345
Posted By Walt
One color, No way, wheel pants can make or break...

One color, No way, wheel pants can make or break the paint job!
18 yrs ZERO issues, I think the key is mount them a little high with plenty of tire/ground clearance.
(No idea why picture get...
Forum: Electrical Systems 04-19-2022, 06:19 PM
Replies: 4
Views: 362
Posted By Walt
Agree with the above, Also curious why you would...

Agree with the above, Also curious why you would only start on one LSE ignition?
Forum: Electrical Systems 04-18-2022, 06:34 PM
Replies: 16
Views: 1,744
Posted By Walt
KlIxon breaker...

KlIxon breaker dissection:
https://code7700.com/circuit_breakers.htm

In the case of the klixon 7700 series its apparent polarity doesn’t matter.
Forum: RV Ongoing Maintenance Issues 04-18-2022, 10:14 AM
Replies: 34
Views: 2,371
Posted By Walt
Turbines don't have an oil sump exposed to...

Turbines don't have an oil sump exposed to combustion gases, water cannot be introduced into the oil system from turbine section like an internal combustion engine.
Forum: RV Ongoing Maintenance Issues 04-18-2022, 10:03 AM
Replies: 34
Views: 2,371
Posted By Walt
Originally Posted byjrs14855 View Post 170 oil...

Originally Posted byjrs14855 View Post
170 oil temperature is too low. 180 minimum.

Originally posted by Walt:
Where did 180 minimum come from?
165-220 is the recommended range from Lyc.
Some...
Forum: RV Ongoing Maintenance Issues 04-17-2022, 10:36 AM
Replies: 34
Views: 2,371
Posted By Walt
Guess you better let Lycoming know their manuals...

Guess you better let Lycoming know their manuals are wrong :eek:
Forum: Traditional Aircraft Engines 04-17-2022, 09:28 AM
Replies: 1
Views: 211
Posted By Walt
Suggest you download the table of limits The mag...

Suggest you download the table of limits
The mag nuts are 5/16 from the standard torque chart.

https://www.lycoming.com/sites/default/files/SSP-1776-5%20Table%20of%20Limits%20-%20Complete.pdf from...
Forum: RV Ongoing Maintenance Issues 04-17-2022, 09:14 AM
Replies: 34
Views: 2,371
Posted By Walt
Where did 180 minimum come from? 165-220 is the...

Where did 180 minimum come from?
165-220 is the recommended range from Lyc.
Some documents even state 140 min for continuous operation.
Forum: GPS 04-15-2022, 09:55 AM
Replies: 5
Views: 801
Posted By Walt
Usually good past the 90 day...

Usually good past the 90 day window.
https://fly.garmin.com/fly-garmin/
Forum: Glass Cockpit 04-15-2022, 07:04 AM
Replies: 8
Views: 392
Posted By Walt
Might be a good time to upgrade to a Xpr with a...

Might be a good time to upgrade to a Xpr with a serial input.
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