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Search: Posts Made By: David Paule
Forum: RV Photo/Video URLs Yesterday, 04:49 PM
Replies: 67
Views: 7,824
Posted By David Paule
I generally use postimage.org. It's easy and...

I generally use postimage.org. It's easy and fast.

Dave
Forum: Tools 07-16-2018, 10:39 AM
Replies: 19
Views: 1,537
Posted By David Paule
Ditto on the coarse-tooth wood blade as BillL...

Ditto on the coarse-tooth wood blade as BillL said in post #3. Works great, cuts fast.

But the cut is rough. I use a 12" disk sander to smooth that out, followed by a Vixen file to finish the...
Forum: RV-12 07-15-2018, 06:38 PM
Replies: 20
Views: 931
Posted By David Paule
Ditto with those. I gave up on them after having...

Ditto with those. I gave up on them after having some tube become permanently trapped inside them.

In my opinion, they're worse than worthless - they steal tube from me.

Dave
Forum: RV Building Tips/Techniques 07-14-2018, 11:20 AM
Replies: 5
Views: 635
Posted By David Paule
It's a little hard to tell from the spec, but it...

It's a little hard to tell from the spec, but it seems that the threads must be at least 7/16" long on an AN6 bolt.

I just measured two that had cotter pin holes drilled. From the good thread at the...
Forum: Safety 07-12-2018, 01:45 PM
Replies: 94
Views: 17,500
Posted By David Paule
Once I was visiting friends, a flying couple, and...

Once I was visiting friends, a flying couple, and the guy followed me around while I was preflighting for our departure, talking. Annoying but I didn't say anything. Then after I'd closed a large...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-09-2018, 09:13 PM
Replies: 4
Views: 643
Posted By David Paule
And pending funds, it's sold to Wayne. Dave

And pending funds, it's sold to Wayne.

Dave
Forum: RV-12 07-09-2018, 07:39 PM
Replies: 15
Views: 1,683
Posted By David Paule
I've heard of using 3M's 2216 epoxy from a...

I've heard of using 3M's 2216 epoxy from a syringe.

Dave
Forum: RV General Discussion/News 07-09-2018, 07:34 PM
Replies: 7
Views: 481
Posted By David Paule
My Cessna uses a cork gasket. When I install one,...

My Cessna uses a cork gasket. When I install one, I coat it with oil on both sides. They seem to last a couple decades but then need replacement.

On my RV-3B, I used tank sealant, but I used the...
Forum: RV-8/8A 07-09-2018, 12:35 PM
Replies: 7
Views: 374
Posted By David Paule
The article that Carl linked to says not to use...

The article that Carl linked to says not to use the tape on Lexan, but it doesn't say that for acrylic. I think that the canopies are acrylic.

Dave
Forum: Glass Cockpit 07-09-2018, 12:27 PM
Replies: 9
Views: 625
Posted By David Paule
Don't forget to use nutplates. (I just examined...

Don't forget to use nutplates.

(I just examined an old panel that I built when I was about 25, very many years ago. No nutplates but many small nuts. Ugh!)

Dave
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-09-2018, 09:14 AM
Replies: 4
Views: 643
Posted By David Paule
SOLD - Military Stick Grip

This isnít some imitation military grip, itís the real thing. According to the part number, itís from a Huey helicopter cyclic stick. Itís new old stock, but not in new condition. It was removed from...
Forum: RV General Discussion/News 07-08-2018, 07:24 PM
Replies: 6
Views: 1,100
Posted By David Paule
Also worth considering, is your own condition...

Also worth considering, is your own condition when they occur. If you expect to be tired, dehydrated, needing to go to the bathroom, or whatever else, that increases the difficulty of the...
Forum: Electrical Systems 07-08-2018, 07:20 PM
Replies: 5
Views: 433
Posted By David Paule
What's typically done is to make a main power...

What's typically done is to make a main power bus. This has some sort of current limiter device between it and the battery contacter. Then the fuses and breakers and switch breakers are all in...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-08-2018, 07:05 PM
Replies: 1
Views: 537
Posted By David Paule
Might be better to post what you have here. Make...

Might be better to post what you have here. Make a list, including brand and model and condition and past service life, and a price if possible. Otherwise guys looking for a few specific things, like...
Forum: Traditional Aircraft Engines 07-07-2018, 06:36 PM
Replies: 0
Views: 154
Posted By David Paule
ARP Carburetor Ice Detector

I've got one of these devices (Spruce sells them) in my Cessna, and like it so much that I bought one for my RV-3B, too. I regard it as essential if you're flying a carburetor. I've mentioned that...
Forum: RV General Discussion/News 07-07-2018, 01:09 PM
Replies: 39
Views: 2,911
Posted By David Paule
That's what the firewall is there to...

That's what the firewall is there to prevent.

I'd rather have it be there than in the cabin.

Dave
Forum: Rocket 07-07-2018, 11:07 AM
Replies: 26
Vne
Views: 2,275
Posted By David Paule
Study up on flutter before attempting to exceed...

Study up on flutter before attempting to exceed redline. It's potentially dangerous. It can destroy your airplane in a fraction of a second with no warning.

There are ways to test for flutter. They...
Forum: My RV Build Project 07-06-2018, 05:38 PM
Replies: 373
Views: 164,982
Posted By David Paule
Belly Rivets

Riveted the seat belly skins and the belly skin that’s immediately aft of the firewall. The Titanium overlay did not get riveted on at this stage. Since the fuselage is still upside down in the jig,...
Forum: Tools 07-05-2018, 05:25 PM
Replies: 14
Views: 1,145
Posted By David Paule
If you guys are talking about The Yard Store, so...

If you guys are talking about The Yard Store, so far I've only gotten some good stuff from them. Typically the same brand names I look for elsewhere, with good prices and very fast service.

That...
Forum: Tools 07-05-2018, 03:01 PM
Replies: 14
Views: 1,145
Posted By David Paule
They mostly all give decent service. Add The...

They mostly all give decent service.

Add The Yard Store to your list. They have a wide selection of tools and great prices.

Dave
Forum: My RV Build Project 07-05-2018, 09:18 AM
Replies: 373
Views: 164,982
Posted By David Paule
This isn't the main stuff I've been working on...

This isn't the main stuff I've been working on lately but it's part of the project.

Iíd gotten one of Gil Alexander's Skyview network hub printed wiring boards and the rest of the components, all...
Forum: RV General Discussion/News 07-01-2018, 10:13 AM
Replies: 36
Views: 3,985
Posted By David Paule
Why is that? Thanks, Dave

Why is that?

Thanks,
Dave
Forum: Alternative Engines 06-29-2018, 07:38 PM
Replies: 7
Views: 825
Posted By David Paule
Much would depend on the specific grade and...

Much would depend on the specific grade and heat-treatment and welding process used for a stainless steel engine mount. While 4130 engine mounts are typically made from normalized 4130, they can be...
Forum: RV General Discussion/News 06-29-2018, 12:12 PM
Replies: 12
Views: 1,119
Posted By David Paule
Photos Right Here on VAF

In fact, here's a good one. (http://www.vansairforce.com/community/showthread.php?t=161690)

Dave
Forum: RV-14 06-27-2018, 07:27 PM
Replies: 10
Views: 645
Posted By David Paule
Van's sells .040 in a variety of sizes. for...

Van's sells .040 in a variety of sizes. for example, AS3-040x2.75x8.969 for $3.25 is 2 3/4 x 8 31/32. Just a bit larger than called for. I don't know the RV-14 at all (I'm building an RV-3B) but...
Forum: RV General Discussion/News 06-26-2018, 09:50 AM
Replies: 19
Views: 2,288
Posted By David Paule
Consider whether you should reduce the pressure...

Consider whether you should reduce the pressure for those rivets. Maybe, maybe not. Try it on a test sample and see.

Dave
Forum: RV General Discussion/News 06-25-2018, 03:12 PM
Replies: 9
Views: 1,422
Posted By David Paule
That's one very, very good-lookin' airplane. As...

That's one very, very good-lookin' airplane. As in exceptional. Congratulations, sir!

Dave
Forum: RV Building Tips/Techniques 06-25-2018, 03:02 PM
Replies: 111
Views: 60,889
Posted By David Paule
What's the difference between these and the Vixen...

What's the difference between these and the Vixen files I've been using on my airframe?

Dave
Forum: Traditional Aircraft Engines 06-24-2018, 07:11 PM
Replies: 19
Views: 3,931
Posted By David Paule
My posting wasn't about mixture adjustment but...

My posting wasn't about mixture adjustment but about shutting off the ignition. It followed (but didn't reference) one that mentioned the concept of shutting down the ignition and turning it back on...
Forum: RV Building Tips/Techniques 06-24-2018, 05:06 PM
Replies: 9
Views: 828
Posted By David Paule
Time involved? I don't know about Pro-Seal, it...

Time involved? I don't know about Pro-Seal, it would depend upon the actual steps used in the process. But I'm gluing my RV-3B fuselage together before riveting it, using a structural glue, and I can...
Forum: Traditional Aircraft Engines 06-22-2018, 08:50 PM
Replies: 19
Views: 3,931
Posted By David Paule
That might work in some engines. One of mine has...

That might work in some engines. One of mine has a failure mode if the engine backfires, an intake balance tube blows off and the engine won't run until it's put back on.

So before accepting that as...
Forum: My RV Build Project 06-20-2018, 07:18 PM
Replies: 373
Views: 164,982
Posted By David Paule
The Titanium layer on the forward belly has a...

The Titanium layer on the forward belly has a portion that needed to be rounded to be part of a more efficient cooling air exit than the stock design. In this view, itís already partly bent. I just...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-19-2018, 09:18 AM
Replies: 1
Views: 395
Posted By David Paule
Gone!

The books are all gone now.

Dave
Forum: RV General Discussion/News 06-19-2018, 08:10 AM
Replies: 660
Views: 126,828
Posted By David Paule
For the folks who have an ADAHRS or magnetometer...

For the folks who have an ADAHRS or magnetometer in the middle of the tailcone somewhere, will this affect their compass calibration?

I'd be concerned that if there was any effect, it would vary day...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-17-2018, 07:55 PM
Replies: 1
Views: 395
Posted By David Paule
Free Aviation Books (With a Donation to DR)

These books are free, but you'll have to pay actual postage AND make a donation to DR. How much is up to you. I prefer email and might not bother with PMs, so don't send any. If you click on my user...
Forum: My RV Build Project 06-17-2018, 06:22 PM
Replies: 373
Views: 164,982
Posted By David Paule
Here's the titanium belly overlay in place....

Here's the titanium belly overlay in place. Nothing unusual about this except that the .063 spacers in the middle area under it are forcing it to lay in a mild compound curve, since the perimeter...
Forum: COMM 06-17-2018, 05:38 PM
Replies: 11
Views: 969
Posted By David Paule
Here's what the TY91 installation manual...

Here's what the TY91 installation manual states:

========
5.6.6
PTT1/2 Key Input

Two Push to Talk (PTT) inputs are provided, which correspond to the two microphone inputs. Only the corresponding...
Forum: My RV Build Project 06-09-2018, 01:06 PM
Replies: 373
Views: 164,982
Posted By David Paule
After making the titanium belly overlay, I...

After making the titanium belly overlay, I clecoed it in place. Forward is to the left. That overhanging part is to allow for a rounded entry for the air exit....
Forum: RV-9/9A 06-08-2018, 02:13 PM
Replies: 5
Views: 1,002
Posted By David Paule
In my C180, one thing to do is to get the...

In my C180, one thing to do is to get the tailwheel just off the ground as soon as it will lift off. It has significant drag on soft/rough ground. So start with forward elevator to lift it, but...
Forum: RV-14 06-06-2018, 05:10 PM
Replies: 9
Views: 885
Posted By David Paule
I can confirm that. See this thread about...

I can confirm that. See this thread about removing Pro-Sealed parts. (www.vansairforce.com/community/showthread.php?t=121151)

Dave
Forum: Safety 06-05-2018, 06:49 PM
Replies: 52
Views: 6,069
Posted By David Paule
Here's an RV-8 elevator picture from the plans....

Here's an RV-8 elevator picture from the plans. I've marked where the hinge is. You can pretty easily see where the rod end is, the nut and the nutplate. Although I'm building an RV-3B, this design...
Forum: RV General Discussion/News 06-04-2018, 11:11 AM
Replies: 21
Views: 1,209
Posted By David Paule
Big improvement. I'm glad that you kept after...

Big improvement.

I'm glad that you kept after this.

Your workmanship was not in question. However, there is a large difference in designing for vibration rather than for strength. Your brace will...
Forum: RV-6/6A 06-02-2018, 06:14 PM
Replies: 9
Views: 1,034
Posted By David Paule
I'm certain that they'd be a lot different than...

I'm certain that they'd be a lot different than the RV-6 ones that Van's designed, but the RV-3B kit uses floor-mounted pedals and brakes.

Dave
Forum: RV General Discussion/News 06-02-2018, 04:39 PM
Replies: 12
Views: 1,159
Posted By David Paule
I have the standard orange stuff on my Cessna...

I have the standard orange stuff on my Cessna 180. It's 1/8" thick and has fiber inside. In spite of that, after around 600 hours, a couple of places have torn. The tears originate adjacent to the...
Forum: RV General Discussion/News 06-02-2018, 09:35 AM
Replies: 21
Views: 1,209
Posted By David Paule
They are not supports. Relationships of this...

They are not supports. Relationships of this nature are not considered, in the jargon of a dynamicist, to constrain the system.




It won't. It will shift the frequency of that, though. For better...
Forum: RV General Discussion/News 06-01-2018, 11:57 AM
Replies: 21
Views: 1,209
Posted By David Paule
It appears as if you tied that oil line to a...

It appears as if you tied that oil line to a flexible hose that's restrained at one end away from the engine. If that's correct, you added mass to the oil line, rather than stiffness. It would have...
Forum: RV General Discussion/News 05-31-2018, 04:30 PM
Replies: 22
Views: 2,208
Posted By David Paule
I like your methodical, organized approach to...

I like your methodical, organized approach to this.

The only thing I can add to what you're planning is to have fun, and when you and the airplane are able to fly together, do a bunch of airwork...
Forum: RV General Discussion/News 05-31-2018, 11:20 AM
Replies: 21
Views: 1,209
Posted By David Paule
That's a lot of unsuported overhang for that oil...

That's a lot of unsuported overhang for that oil line. It's a vibration failure just waiting to happen.

https://s15.postimg.cc/5ufnwseiz/Huge_Overhang.jpg

It needs some support, perhaps at two...
Forum: Reviews 05-31-2018, 09:39 AM
Replies: 15
Views: 2,366
Posted By David Paule
Is polycarbonate really the right material for...

Is polycarbonate really the right material for this? It allows for large deformations during impact, which then rebound and it appears as if everything is fine. But the damage to your head is still...
Forum: RV-3 05-30-2018, 05:55 PM
Replies: 13
Views: 1,699
Posted By David Paule
Update

I designed my own and the first version was too expensive, with a lot of machining.

The second version was very simple but too heavy, at over a pound.

So the new plan is to simply use my Andair...
Forum: RV-8/8A 05-30-2018, 10:48 AM
Replies: 21
Views: 2,302
Posted By David Paule
I should have added that for the tip flanges, I...

I should have added that for the tip flanges, I made a tapered block of hardwood and clamped that inside the trim tab for backup. I'd put a radius on the edges.

I reserve a large shelf in my garage...
Forum: RV-8/8A 05-30-2018, 08:54 AM
Replies: 21
Views: 2,302
Posted By David Paule
Your next one will be considerably better. You...

Your next one will be considerably better.

You can avoid the hammer marks by using a wooden block to spread the load.

What I did for the end rib folds was use a 3" metal hand seamer, like this...
Forum: RV General Discussion/News 05-28-2018, 01:57 PM
Replies: 3
Views: 763
Posted By David Paule
Internal vs. External Star Lock Washers

Which should I use where?

While my immediate application is for steel screws into threaded aluminum, I'd appreciate learning about the reasons for one or the other generally.

Thanks!
Dave
RV-3B,...
Forum: RV General Discussion/News 05-25-2018, 10:16 PM
Replies: 4
Views: 1,255
Posted By David Paule
It's a good way to lock in some thermal stresses...

It's a good way to lock in some thermal stresses that will lead to cracks. Don't do it.

Dave
Forum: RV Building Tips/Techniques 05-25-2018, 01:30 PM
Replies: 7
Views: 739
Posted By David Paule
There's one solution given in the RV-3B plans, to...

There's one solution given in the RV-3B plans, to remake the flanges. I had to do that a few places for my fuselage. I described it in my VAF blog in

Post #323...
Forum: RV General Discussion/News 05-24-2018, 07:21 PM
Replies: 4
Views: 499
Posted By David Paule
Have you seen "The Aeroelectric Connection," by...

Have you seen "The Aeroelectric Connection," by Nickolls? It's a good book that includes a number of aircraft electrical schematics for most electrical configurations. With the manufacturers...
Forum: Tools 05-23-2018, 02:37 PM
Replies: 8
Views: 1,569
Posted By David Paule
What I prefer are castering wheels on all four...

What I prefer are castering wheels on all four legs, with two of them on the same long side, locking. Sometimes in my small shop, I need to move a bench sideways.




You can certainly use 2x4s...
Forum: Tools 05-23-2018, 10:09 AM
Replies: 8
Views: 1,569
Posted By David Paule
Examples of the Measurements

For the table height:

37" Desired height when done

3/4" Thickness of top

3/4" Thickness of the bottom squares

5" Height of the wheels
Forum: Primers 05-22-2018, 05:18 PM
Replies: 10
Views: 844
Posted By David Paule
I don't know first hand about that primer, but...

I don't know first hand about that primer, but Azko Noble epoxy primer has a well-earned reputation for being tough, durable, strong and effective.

Dave
Forum: Tools 05-22-2018, 12:27 PM
Replies: 8
Views: 1,569
Posted By David Paule
How To Build a Workbench

I've made eight of these so far. They all are doing their job now. They are relatively easy to make and go together quickly.

I use a circular saw and an electric screwdriver/drill. The hand tools...
Forum: Web Site Development 05-22-2018, 09:46 AM
Replies: 24
Views: 1,828
Posted By David Paule
Dan, I hope that you and the gang describe what...

Dan, I hope that you and the gang describe what you're doing and learning here, as you proceed, for the sake of others who'd like to know a little about this stuff.

Thanks!

Dave
Forum: Propellers 05-21-2018, 07:25 PM
Replies: 4
Views: 503
Posted By David Paule
And I'd be delighted with a 2-blade replacement...

And I'd be delighted with a 2-blade replacement for the 151.

Dave
RV-3B, skinning the belly
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