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Search: Posts Made By: blaplante
Forum: RV General Discussion/News 12-02-2021, 06:59 PM
Replies: 6
Views: 347
Posted By blaplante
There's a common problem where grease migrates in...

There's a common problem where grease migrates in to the motor and fouls the brushes. I know, having had that fail when 1000 miles from home! Disassemble, clean, re-lube (lightly).
Forum: Traditional Aircraft Engines 12-01-2021, 09:36 AM
Replies: 36
Views: 3,032
Posted By blaplante
Or you have misfire, bad plug, bad wire, etc. I...

Or you have misfire, bad plug, bad wire, etc. I see too many people on this forum that just blow off large mag drops as some sort of normal. There was a poster some time back getting over 200 rpm...
Forum: Traditional Aircraft Engines 11-30-2021, 10:40 PM
Replies: 36
Views: 3,032
Posted By blaplante
OK, puzzled. The mag drop running on just the...

OK, puzzled. The mag drop running on just the Slick (not renowed for being a 'hot' mag) is about 75 rpm. The drop running on just the CPI is about 130 rpm. My rule for max drop is 125 rpm. Now, I...
Forum: Traditional Aircraft Engines 11-30-2021, 10:25 PM
Replies: 36
Views: 3,032
Posted By blaplante
I'm assuming (can't quite read), the mag switches...

I'm assuming (can't quite read), the mag switches are the red ones on the left - left of the starter button? 4 switches? What are all those? And the knob above the starter button?
Forum: Traditional Aircraft Engines 11-28-2021, 10:28 AM
Replies: 36
Views: 3,032
Posted By blaplante
Mag Check Drop

Zooming in on around 08:53 - looks like a mag check. Rev up to 1800 rpm. Drops to 1517 and then up, and drop to 1425. So over 250 rpm mag drops. That's way too much.

I'd also like to see a panel...
Forum: Traditional Aircraft Engines 11-27-2021, 06:38 PM
Replies: 36
Views: 3,032
Posted By blaplante
I'm very curious how RPM is measured on this...

I'm very curious how RPM is measured on this instrumentation. If it is from the P-lead of the bendix mag, then turning off the ignition - should have made the data go to zero rpm. On the other hand...
Forum: Traditional Aircraft Engines 11-27-2021, 06:27 PM
Replies: 36
Views: 3,032
Posted By blaplante
On my electronic ignition, the toggle switch is...

On my electronic ignition, the toggle switch is similar to https://www.amazon.com/Toggle-Switches-LOCKING-LEVER-BUSHNG/dp/B005TADREW

To move the toggle you have to pull slightly. Prevents...
Forum: Traditional Aircraft Engines 11-26-2021, 10:59 PM
Replies: 36
Views: 3,032
Posted By blaplante
There's another problem here... at 10:00 the...

There's another problem here... at 10:00 the takeoff commences. Prior to that the FP was 28 psi. As the power comes up the pressure drops (down to 22) the recovers somewhat. This tells me that...
Forum: Traditional Aircraft Engines 11-26-2021, 10:43 PM
Replies: 36
Views: 3,032
Posted By blaplante
As others said, big red flag here. This plane is...

As others said, big red flag here. This plane is grounded (my 0.02)!

Note that at touchdown the fuel pressure dropped, recovered - twice. Also note the glitch at 45:27, an unexplained drop in...
Forum: Electronic Ignition Systems 11-24-2021, 10:07 AM
Replies: 37
Views: 4,005
Posted By blaplante
Lightspeed has the provision to display advance...

Lightspeed has the provision to display advance as well. But agree that it wouldn't have helped this fellow.
Forum: Safety 11-22-2021, 10:36 PM
Replies: 15
Views: 1,070
Posted By blaplante
Slide Projector

The slide projector is an interesting idea - but I think the lamp will need to be pilot controlled and on a time-out timer. Those projector bulbs don't have great lifetimes. Leave it on all the...
Forum: RV Building Tips/Techniques 11-22-2021, 10:29 PM
Replies: 7
Views: 526
Posted By blaplante
Ah, RV-10. I'll be not much help there. For...

Ah, RV-10. I'll be not much help there. For those still wondering about 'stringers' in an RV (as far as I know there's no such thing in the 6) - here's a link to a drawing...
Forum: Safety 11-22-2021, 06:56 PM
Replies: 15
Views: 1,070
Posted By blaplante
Scotchlite reflective sheets (as seen on...

Scotchlite reflective sheets (as seen on highways) might work well on the boards.
https://www.3m.com/3M/en_US/p/d/v000155288/

But that's not going to help a mile out. I would think the single light...
Forum: RV General Discussion/News 11-21-2021, 10:26 PM
Replies: 10
Views: 1,026
Posted By blaplante
Well, my 0.02, FWIW. I believe you don't write...

Well, my 0.02, FWIW. I believe you don't write Ops Limitations... your DAR on behalf of the FAA does.

As the builder, I guess you can write a BEL in your operating manual. For what that's...
Forum: Traditional Aircraft Engines 11-21-2021, 04:02 PM
Replies: 13
Views: 991
Posted By blaplante
Hot starts have lots of variables, lets focus on...

Hot starts have lots of variables, lets focus on the cold start problem.

Q#1 - What's your technique for cold starts? Be as specific as possible, ex:

Boost pump on for x seconds (or y...
Forum: Autopilots 11-20-2021, 10:32 PM
Replies: 2
Views: 226
Posted By blaplante
I have a similar Dynon setup. The diagrams in...

I have a similar Dynon setup. The diagrams in the Dynon installation manual worked fine for me.
Forum: RV-6/6A 11-20-2021, 07:40 PM
Replies: 11
Views: 788
Posted By blaplante
Looking at builder's logs of RV7 and RV9 the...

Looking at builder's logs of RV7 and RV9 the parts sure look the same to me as on the 6. I'm talking slider parts...

If Van's deletes / replaces items from "The List" I sure wish they would either...
Forum: RV-6/6A 11-20-2021, 05:40 PM
Replies: 11
Views: 788
Posted By blaplante
I believe I've heard the canopy parts are...

I believe I've heard the canopy parts are identical between the RV7 and RV6 - but call or email Van's to confirm that. At one point I thought the canopy itself was NLA, but then found out the canopy...
Forum: RV-6/6A 11-20-2021, 05:39 PM
Replies: 11
Views: 788
Posted By blaplante
I bought a project 6A kit and discovered I had a...

I bought a project 6A kit and discovered I had a tip up fuselage and a slider finish kit. So the decision was made to go to a slider.

The main surprise was that the subpanel (panel behind the...
Forum: RV Building Tips/Techniques 11-18-2021, 10:34 PM
Replies: 7
Views: 526
Posted By blaplante
How about the a/c model, and some part numbers? ...

How about the a/c model, and some part numbers? Photo? I'm confused. If you are talking about what I think you are, those are normally dimpled not countersunk. I must be thinking about the wrong...
Forum: GPS 11-18-2021, 10:22 PM
Replies: 2
Views: 313
Posted By blaplante
I think I heard that Garmin doesn't sell parts to...

I think I heard that Garmin doesn't sell parts to shops. Which pretty much makes independent repair impossible. Bendix King followed suit for most of their equipment (found out when I was trying to...
Forum: Engine Monitors 11-18-2021, 06:35 PM
Replies: 5
Views: 547
Posted By blaplante
Huh. At...

Huh. At https://www.jpinstruments.com/wp-content/uploads/2018/02/Install-350-Experimental-REV-IR-12-06-2017jfp.pdf
Page 12, it says "sensor 2 wire VDO"
Forum: RV models of the future (RV-??) 11-18-2021, 05:37 PM
Replies: 48
Views: 4,086
Posted By blaplante
And, of course, an IO-720

And, of course, an IO-720
Forum: Engine Monitors 11-18-2021, 05:29 PM
Replies: 5
Views: 547
Posted By blaplante
Did JPI change the type of oil pressure sender...

Did JPI change the type of oil pressure sender between the EDM 730 and the 350? The 730 uses a standard resistive sender. You can PM me for the details.
Forum: Traditional Aircraft Engines 11-17-2021, 07:52 PM
Replies: 7
Views: 411
Posted By blaplante
Tapered pipe threads are intrinsically NOT leak...

Tapered pipe threads are intrinsically NOT leak proof. The threads allow the fluid to follow the thread unless some kind of sealant is used for assembly.

the Brits came up with BSP threads (British...
Forum: COMM 11-13-2021, 11:33 PM
Replies: 14
Views: 520
Posted By blaplante
Oh, and I'm not a fan of diplexers in general. ...

Oh, and I'm not a fan of diplexers in general. It will always reduce the signal somewhat. A separate glideslope antenna eliminates that loss.
Forum: COMM 11-13-2021, 11:32 PM
Replies: 14
Views: 520
Posted By blaplante
Well, no diplexer is ideal. But I agree, I'm...

Well, no diplexer is ideal. But I agree, I'm surprised that there wasn't a substantial improvement. Lack of the Balun could reduce the signal by maybe 50% at worst I think.

With your 430 and CDI,...
Forum: RV General Discussion/News 11-12-2021, 10:47 AM
Replies: 39
Views: 2,756
Posted By blaplante
Earl's

Back in my racing days, Earl's was a quality supplier https://www.holley.com/brands/earls/
But I can't attest to anything now... buy outs etc., they could be selling the cheapest they can get now. ...
Forum: Safety 11-09-2021, 07:00 PM
Replies: 90
Views: 7,633
Posted By blaplante
And one more sin... make sure you are actually on...

And one more sin...
make sure you are actually on the correct frequency ... :o

That said I was quite surprised the other day when I landed and started to taxi and saw a twin on short final. Not...
Forum: COMM 11-08-2021, 10:20 AM
Replies: 14
Views: 520
Posted By blaplante
the 430 has 4 coax jacks on the back. Looking...

the 430 has 4 coax jacks on the back. Looking from the rear side, the g/s is the lower left coax. The NAV is on the bottom to the right of that. Given 1 antenna I expect these two connect in a...
Forum: COMM 11-08-2021, 10:08 AM
Replies: 15
Views: 818
Posted By blaplante
Typical COAX end connectors are crimped. Easy to...

Typical COAX end connectors are crimped. Easy to get corrosion in there. Also easy to do a really poor job of it that didn't securely attach the braid or center pin. Also possible for corrosion...
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-08-2021, 10:01 AM
Replies: 6
Views: 462
Posted By blaplante
I've got a Garmin GTX 330ES with the ADSB out...

I've got a Garmin GTX 330ES with the ADSB out mod. More $ than just a mode C box (asking $1400) - BUT it can do ADSB-out if you feed it WAAS GPS data. Known working. I'll take it back if it isn't,...
Forum: COMM 11-07-2021, 10:54 PM
Replies: 14
Views: 520
Posted By blaplante
Since your NAV antenna is on the bottom of the...

Since your NAV antenna is on the bottom of the plane (aft of the rudder??? how's that?)

there may be some issues with the plane blocking the signal when tuning the VOT on the ground. Try again,...
Forum: COMM 11-07-2021, 10:47 PM
Replies: 14
Views: 520
Posted By blaplante
Sounds like the antenna you've got on the tail is...

Sounds like the antenna you've got on the tail is like this (or similar) https://www.aircraftspruce.com/catalog/avpages/av532.php

that is ONE antenna, despite having two rods. One coax will go to...
Forum: RV General Discussion/News 11-07-2021, 06:18 PM
Replies: 1
Views: 281
Posted By blaplante
PM sent to you :-)

PM sent to you :-)
Forum: COMM 11-07-2021, 06:15 PM
Replies: 14
Views: 520
Posted By blaplante
More info please

What antennas do you have and where are they mounted?
It could be separate GS and VOR/LOC antennas, or they might be using a diplexer.
Are the antennas outside or somewhere else like in the wingtip,...
Forum: Electronic Ignition Systems 11-07-2021, 03:00 PM
Replies: 9
Views: 691
Posted By blaplante
Beware

I have an H2AD myself.

A lot of EI's were listed... in my research, lot's will not work.
The dual mag on the H2AD rotates opposite (at the engine) from a conventional mag. AND the drive is the same...
Forum: Electronic Ignition Systems 11-01-2021, 10:24 AM
Replies: 18
Views: 1,204
Posted By blaplante
I've the same setup (well Bendix instead of...

I've the same setup (well Bendix instead of Slick) on io-320. I get about 10 on the LS and about 100 on the Bendix. Your Slick drop seems high. Try disconnecting (and plugging) the vacuum line on...
Forum: RV General Discussion/News 10-31-2021, 01:22 PM
Replies: 23
Views: 1,718
Posted By blaplante
The county periodically checks hangars and tie...

The county periodically checks hangars and tie downs at the SoCal airports I'm familiar with. If your plane is parked in transient, and isn't normally in California, you're fine. Not sure how...
Forum: RV Ongoing Maintenance Issues 10-31-2021, 10:11 AM
Replies: 2
Views: 416
Posted By blaplante
Builder's manual

Have you looked at the manual, chapter 10, starting page 10-3 (in my copy)?
Forum: ADS-B 10-29-2021, 07:45 PM
Replies: 19
Views: 1,841
Posted By blaplante
Thanks for posting your fix. [way too many...

Thanks for posting your fix. [way too many threads just go dead...]
Forum: RV-8/8A 10-27-2021, 10:34 AM
Replies: 16
Views: 1,380
Posted By blaplante
For those that get little carb heat drop - is...

For those that get little carb heat drop - is your muff the same as the one at https://rv6aj.wordpress.com/2013/03/03/mounting-exhaust/ - 3rd photo from the end?

If so, that "muff" is notorious. ...
Forum: Autopilots 10-26-2021, 10:05 PM
Replies: 10
Views: 668
Posted By blaplante
You'd also need to specify a go-to course on the...

You'd also need to specify a go-to course on the 760. Likely you can't do that until it gets a GPS lock. Once you do that the main screen of the D10a will also show a magenta pointer in the compass...
Forum: RV Building Tips/Techniques 10-26-2021, 12:38 PM
Replies: 14
Views: 1,231
Posted By blaplante
Removing - a tip

If you do attempt removing, it seem's Van's concern is that due to the thickness of the material it would be likely that you'll need to fully drill out the rivet, and thus most likely go slightly off...
Forum: RV-8/8A 10-26-2021, 12:31 PM
Replies: 16
Views: 1,380
Posted By blaplante
What does the muff look like?

What does the muff look like?
Forum: Electrical Systems 10-26-2021, 10:20 AM
Replies: 16
Views: 1,121
Posted By blaplante
wire colors - my opinion

If you go crazy with wire colors, you end up stocking a lot of wire, and you're always short of the one you need.

I basically went with RED= Power (except for heavy cables like the starter where...
Forum: RV Building Tips/Techniques 10-25-2021, 09:39 PM
Replies: 14
Views: 1,231
Posted By blaplante
I mean on the manufactured head. I've never...

I mean on the manufactured head. I've never heard of a rivet with a P or any other letter on the manufactured head.
Forum: RV Building Tips/Techniques 10-25-2021, 07:37 PM
Replies: 14
Views: 1,231
Posted By blaplante
What are the markings on the heads of these...

What are the markings on the heads of these rivets? Single small dimple in the center?
Forum: Autopilots 10-25-2021, 01:23 PM
Replies: 10
Views: 668
Posted By blaplante
hookup

I've got the Dynon D10a, HS34, and AP74, and I'm the builder & did the wiring.

The GPS RS-232 data goes TO THE D10a, not the AP. ...
Forum: Electrical Systems 10-20-2021, 05:03 PM
Replies: 22
Views: 2,115
Posted By blaplante
I'd add indicator lamps to indicate either having...

I'd add indicator lamps to indicate either having power - or not having power. I like DanH's idea but am concerned that the fusable link blows in flight and you have no idea you are now running on...
Forum: RV-7/7A 10-19-2021, 10:22 PM
Replies: 13
Views: 1,917
Posted By blaplante
baseline --- which io-360? 180 HP or 200 HP? I...

baseline --- which io-360? 180 HP or 200 HP?

I think your best 'real world' estimate is the factory performance specs at https://www.vansaircraft.com/rv-7/#aircraft-details-2

which shows going...
Forum: RV Ongoing Maintenance Issues 10-19-2021, 10:10 PM
Replies: 15
Views: 2,959
Posted By blaplante
One more thing

One more thing... when the rudders pedals are neutral (neither depressed) what is the angle that the brake pedals are at compared to the floor?

There are two ways of adjusting the typical Van's top...
Forum: RV Ongoing Maintenance Issues 10-19-2021, 09:48 AM
Replies: 15
Views: 2,959
Posted By blaplante
I'm not moving my feet up in order to hold the...

I'm not moving my feet up in order to hold the plane. I'm a size 9.5" shoe.
Just my opinion, but don't start messing around re-engineering something that is flight critical when I think you have a...
Forum: RV Ongoing Maintenance Issues 10-18-2021, 10:11 PM
Replies: 15
Views: 2,959
Posted By blaplante
Beats me what's up here. You guys all have 300...

Beats me what's up here. You guys all have 300 HP or something?

Case in point: RV-6A (not at gross weight), fixed pitch, 160 HP... absolutely no problem holding stationary at full power on a paved...
Forum: ADS-B 10-18-2021, 10:06 PM
Replies: 19
Views: 1,841
Posted By blaplante
I've been running the same SD card in my plane's...

I've been running the same SD card in my plane's Stratux for years. No issues. Never have done 'clean shutdown'.

There's a slack group for Stratux to ask questions. http://slack.stratux.me
Forum: ADS-B 10-17-2021, 10:18 AM
Replies: 19
Views: 1,841
Posted By blaplante
just to be sure, you do mean Stratux and not...

just to be sure, you do mean Stratux and not Stratus, correct?
Forum: RV-8/8A 10-16-2021, 03:26 PM
Replies: 7
Views: 979
Posted By blaplante
I recall because the magnets would sometimes come...

I recall because the magnets would sometimes come loose and vanish. Where... through the engine... maybe.

Read up on all service difficulty reports about automatic air doors in certified aircraft...
Forum: GPS 10-14-2021, 10:07 PM
Replies: 4
Views: 559
Posted By blaplante
Well we're missing some specifics. However, I...

Well we're missing some specifics.

However, I found that my Garmin 4xxW series - which outputs both RS232 and ARINC 429 - ONLY outputs the necessary data for auto scaling on the ARINC 429...
Forum: Propellers 10-13-2021, 04:32 PM
Replies: 12
Views: 1,943
Posted By blaplante
Another source of info - I found that the Cessna...

Another source of info -
I found that the Cessna 172 manuals describe how the prop is supposed to be clocked to the engine.
Forum: RV-7/7A 10-09-2021, 09:58 AM
Replies: 7
Views: 805
Posted By blaplante
I have a JPI engine monitor and it calculates %...

I have a JPI engine monitor and it calculates % power for me. And a lot of other nice features.
Forum: RV General Discussion/News 10-08-2021, 05:56 PM
Replies: 13
Views: 1,113
Posted By blaplante
What's the flaps down stall speed on your plane? ...

What's the flaps down stall speed on your plane? I recall the rule of thumb to be final approach speed is 1.3 times that. So - on mine - flaps down stall is 55 - so final approach speed is 71.5...
Forum: RV-4 10-07-2021, 05:33 PM
Replies: 13
Views: 1,288
Posted By blaplante
Per Van's - Performance

Have you seen https://www.vansaircraft.com/rv-4/#aircraft-details-2

According to the mothership, ceiling on a 160 HP RV-4 is 24,000 feet.
Or 3500' higher than the RV-6A and 2500' higher than the...
Forum: RV-6/6A 10-06-2021, 10:48 PM
Replies: 10
Views: 1,095
Posted By blaplante
very happy with my Catto

very happy with my Catto
Forum: RV-4 10-06-2021, 10:43 PM
Replies: 13
Views: 1,288
Posted By blaplante
Well my io-320 RV6A has been flown often at...

Well my io-320 RV6A has been flown often at 13,500 msl - which was way more than that in density altitude. No difficulty getting there. Also, fixed pitch. And the 6A is a heavier plane.

I don't...
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