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Search: Posts Made By: David Paule
Forum: Safety Yesterday, 11:07 AM
Replies: 90
Views: 9,255
Posted By David Paule
Is anyone on the forums for non-RV aircraft? How...

Is anyone on the forums for non-RV aircraft? How did the other brands do?

Dave
Forum: Safety Yesterday, 11:06 AM
Replies: 34
Views: 2,353
Posted By David Paule
This might be difficult to implement so that it...

This might be difficult to implement so that it works in the very severe conditions where it's most needed. Wirejock's suggestions would help somewhat. I would not rely on this.

Dave
Forum: Safety 08-06-2022, 07:30 PM
Replies: 90
Views: 9,255
Posted By David Paule
The impression I get reading this thread is that...

The impression I get reading this thread is that there was probably a lot of local variation, airplane to airplane, as to the nature if the wind that each encountered. Could be the direction, the...
Forum: Painting your RV 08-06-2022, 07:21 PM
Replies: 3
Views: 255
Posted By David Paule
I used Stewart EkoPoxy for the interior, which...

I used Stewart EkoPoxy for the interior, which has held up pretty well. I'm not flying but the interior parts are in. The seat bottom, back and baggage floor are all white and stacked on a shelf now....
Forum: Painting your RV 08-06-2022, 08:32 AM
Replies: 5
Views: 371
Posted By David Paule
Why do you want to wrap the canopy? Dave

Why do you want to wrap the canopy?

Dave
Forum: RV Building Tips/Techniques 08-05-2022, 05:04 PM
Replies: 14
Views: 554
Posted By David Paule
Thanks! Dave

Thanks!

Dave
Forum: RV Building Tips/Techniques 08-05-2022, 08:24 AM
Replies: 14
Views: 554
Posted By David Paule
Where did you get your uni carbon tape? Dave

Where did you get your uni carbon tape?

Dave
Forum: RV Building Tips/Techniques 08-04-2022, 08:01 PM
Replies: 14
Views: 554
Posted By David Paule
Yes, of course. I am in the middle of doing...

Yes, of course.

I am in the middle of doing this for my oil door....

Dave
Forum: RV-3 08-04-2022, 08:00 PM
Replies: 35
Views: 3,386
Posted By David Paule
Remember, Larry, Paul did this to his RV-3B, the...

Remember, Larry, Paul did this to his RV-3B, the small taidragger. Might differ for your -7A.

Rick B. has a -6A and did this, so he might be able to give you some info.

Dave
Forum: RV Building Tips/Techniques 08-04-2022, 01:53 PM
Replies: 25
Views: 6,390
Posted By David Paule
Thanks, Bill... that's perfect. Dave

Thanks, Bill... that's perfect.

Dave
Forum: RV Building Tips/Techniques 08-04-2022, 01:52 PM
Replies: 14
Views: 554
Posted By David Paule
The carbon will make the .064 thickness 7.2 times...

The carbon will make the .064 thickness 7.2 times as stiff, roughly, and the .110 thickness about 4.3 times stiffer. For the other thicknesses, it'll be somewhere in between.

Dave
Forum: RV Building Tips/Techniques 08-04-2022, 09:24 AM
Replies: 25
Views: 6,390
Posted By David Paule
So is the "L" aft of the inlet ramp, following...

So is the "L" aft of the inlet ramp, following it, or what? It's the proximity of the inlet ramp that I wonder about.

Thanks!
Dave
Forum: RV Building Tips/Techniques 08-04-2022, 08:30 AM
Replies: 14
Views: 554
Posted By David Paule
I could tell you the improvement if you tell me...

I could tell you the improvement if you tell me the thickness of the glass cowl there.

Dave
Forum: RV Building Tips/Techniques 08-04-2022, 08:29 AM
Replies: 25
Views: 6,390
Posted By David Paule
Should have made it more clear - the photo wasn't...

Should have made it more clear - the photo wasn't mine. I expect I'll need an intermediate guide too.

What I'm asking, is how did you deal with the inlet ramp at the front of the cowl?

Thanks!

Dave
Forum: RV Building Tips/Techniques 08-03-2022, 06:08 PM
Replies: 25
Views: 6,390
Posted By David Paule
Here y'go: 28998 The photo is from a previous...

Here y'go:

28998

The photo is from a previous thread. It's the end at the front of the cowl that I'm interested in now.

Dave
Forum: RV Building Tips/Techniques 08-03-2022, 04:56 PM
Replies: 25
Views: 6,390
Posted By David Paule
Forward End of the wire?

Bringing back this old thread because I was wondering about the forward end of the wire.

Does it stop just aft of the inlet ramp, or follow the ramp, or something else?

The latch is next on my...
Forum: Primers 08-03-2022, 04:06 PM
Replies: 32
Views: 15,548
Posted By David Paule
I bet that rule of thumb was from a long time...

I bet that rule of thumb was from a long time ago, when many coatings cured by evaporating solvents. Just a guess, I ain't a chemist or a painter at all. Not even close.

A two-part paint will have...
Forum: RV-15 08-01-2022, 12:45 PM
Replies: 437
Views: 88,179
Posted By David Paule
Is your 172's name "Oscar?" Dave

Is your 172's name "Oscar?"

Dave
Forum: RV-15 07-31-2022, 07:11 PM
Replies: 437
Views: 88,179
Posted By David Paule
Probably speed, take off distance and rate of...

Probably speed, take off distance and rate of climb with a load. All improve with more power.

Dave
Forum: RV-15 07-30-2022, 05:22 PM
Replies: 29
Views: 2,863
Posted By David Paule
Too Old To Build an RV-15?

Yes. Definitely. Beyond any doubt.

Dave
Forum: RV-15 07-29-2022, 09:22 AM
Replies: 10
Views: 1,384
Posted By David Paule
There's a whole section just for builder threads...

There's a whole section just for builder threads where it'll be easier to find. I expect the RV-15 section will be very crowded, especially if the step-by-step instructions lag initial kit...
Forum: Tools 07-28-2022, 07:33 PM
Replies: 13
Views: 1,087
Posted By David Paule
Agreed. Of those, I'd put Cleaveland best for...

Agreed. Of those, I'd put Cleaveland best for some things like the dies, Brown and The Yardstore both good for lots of things, ATS good for things the other stores might not carry, and Spruce handy...
Forum: RV-15 07-26-2022, 04:24 PM
Replies: 437
Views: 88,179
Posted By David Paule
Probably 2024, since they likely don't stock 6061...

Probably 2024, since they likely don't stock 6061 sheet, and their tools are most likely set up for 2024.

Dave
Forum: My RV Build Project 07-25-2022, 01:10 PM
Replies: 642
Views: 436,412
Posted By David Paule
The battery mount is in and the photo shows it...

The battery mount is in and the photo shows it latched.

https://i.imgur.com/wHavU6s.jpg

Dan Christian, whom we we know as Dan 57, flew in for a brief visit. He was traveling from Switzerland to...
Forum: Tools 07-23-2022, 10:28 AM
Replies: 6
Views: 631
Posted By David Paule
I've been using Harbor Freight brand, and I have...

I've been using Harbor Freight brand, and I have needed to replace one or two, but aside from that they work fine.

Since I'm building an RV-3B, I might perhaps have needed to use it more than on the...
Forum: RV-15 07-21-2022, 07:29 PM
Replies: 437
Views: 88,179
Posted By David Paule
Fueling isn't an issue, assuming it's available....

Fueling isn't an issue, assuming it's available. The C180 had optional steps, one on the side above the tire in front of the strut and one on the strut. There was a handhold, too, I think (my C180...
Forum: RV Ongoing Maintenance Issues 07-21-2022, 09:56 AM
Replies: 10
Views: 708
Posted By David Paule
Van's carries a selection, too. Dave

Van's carries a selection, too.

Dave
Forum: RV Building Tips/Techniques 07-21-2022, 09:55 AM
Replies: 5
Views: 601
Posted By David Paule
I bet that over time, the paint will get knocked...

I bet that over time, the paint will get knocked off by dirty ropes abrading it or chains rubbing it.

Dave
Forum: RV-15 07-19-2022, 02:38 PM
Replies: 437
Views: 88,179
Posted By David Paule
Hard to get it there, assemble it, and then after...

Hard to get it there, assemble it, and then after the show, do the reverse.

Dave
Forum: RV-15 07-18-2022, 06:04 PM
Replies: 437
Views: 88,179
Posted By David Paule
Just a quick note about the C170 and C180... A...

Just a quick note about the C170 and C180... A few people have mentioned a very low stall speed for these planes. However, that's not real. The IAS is a lot lower than TAS at high angles of attack,...
Forum: RV Ongoing Maintenance Issues 07-15-2022, 08:50 AM
Replies: 22
Views: 1,363
Posted By David Paule
If you keep them really tight, they won't more...

If you keep them really tight, they won't more much, and the chafe problem is lessened. If you don't keep them really tight, then you will get the plane rocking or bouncing and perhaps damaged with...
Forum: RV Ongoing Maintenance Issues 07-15-2022, 07:06 AM
Replies: 22
Views: 1,363
Posted By David Paule
If straps have a hook end rather than a closed...

If straps have a hook end rather than a closed loop end, they are unacceptable as airplane tiedowns. The hook can open up, and falling off. I've seen that.

Also if they are nylon or polypropylene,...
Forum: RV-15 07-13-2022, 10:26 AM
Replies: 437
Views: 88,179
Posted By David Paule
For this kind of airplane, perhaps there won't be...

For this kind of airplane, perhaps there won't be an A version.

Dave
Forum: My RV Build Project 07-12-2022, 04:28 PM
Replies: 642
Views: 436,412
Posted By David Paule
Added the glass to the front of this...

Added the glass to the front of this bulkhead.

https://i.imgur.com/okFZxhz.jpg

And then separated the hatch from the fairing and trimmed the bulkhead.

https://i.imgur.com/By3PgkL.jpg

Put it...
Forum: RV-15 07-12-2022, 11:14 AM
Replies: 25
Views: 5,584
Posted By David Paule
It will be longer this time because there's more...

It will be longer this time because there's more development involved.

Dave
Forum: RV-7/7A 07-12-2022, 09:58 AM
Replies: 19
Views: 1,182
Posted By David Paule
I just use a 2 lb. steel hammer, not a soft one....

I just use a 2 lb. steel hammer, not a soft one. I've removed the spring in the C-frame, and put the male die on the bottom. When it's engaged, I let the female die down and give the thing a good...
Forum: Painting your RV 07-11-2022, 04:14 PM
Replies: 22
Views: 1,866
Posted By David Paule
I know that you're interested in paint, but it...

I know that you're interested in paint, but it might be worth checking vinyl wrapping. There are a few advantages:

It's lighter,
Less expensive,
Applies faster,
Doable in a workshop,
And more...
Forum: Painting your RV 07-11-2022, 11:49 AM
Replies: 22
Views: 1,866
Posted By David Paule
After using the Stewart water-based paint...

After using the Stewart water-based paint products, I clean the spray gun in the kitchen sink.

Dave
Forum: Rocket 07-11-2022, 09:36 AM
Replies: 14
Views: 1,366
Posted By David Paule
Perhaps you could find Dave Anders' discussions...

Perhaps you could find Dave Anders' discussions about his very fast RV-4. In at least one of them, he outlines the major structural changes he put in. Among other things, he built a new empennage...
Forum: Painting your RV 07-10-2022, 05:31 PM
Replies: 22
Views: 1,866
Posted By David Paule
There's a whole Painting section of the forum. A...

There's a whole Painting section of the forum. A number of your questions are answered there.

Nearly every paint has manufacturer's instructions regarding prep, priming, drying, mixing, and so on....
Forum: RV-3 07-10-2022, 08:50 AM
Replies: 35
Views: 3,386
Posted By David Paule
Let us know if that holds once you've got some...

Let us know if that holds once you've got some tire wear.

Dave
Forum: RV-15 07-10-2022, 08:18 AM
Replies: 437
Views: 88,179
Posted By David Paule
Another suggestion - curve the windshield like a...

Another suggestion - curve the windshield like a C180 instead of like a C170. It will have lower form drag and less noise.

Dave
Forum: RV-15 07-09-2022, 07:20 PM
Replies: 437
Views: 88,179
Posted By David Paule
Appears to need a couple of tailcone belly...

Appears to need a couple of tailcone belly stiffeners to prevent that oil-canning.

https://www.vansairforce.net/IMG/2022/VAFDR_%20501%20Jul.%2009%2019.52.jpg

The sloped cowl is nice, that's a bit...
Forum: RV Ongoing Maintenance Issues 07-09-2022, 05:15 PM
Replies: 14
Views: 1,729
Posted By David Paule
Although it's moot now, you can get a sealant...

Although it's moot now, you can get a sealant called "access hatch" sealant, with the same B codes for cure. This mixes to a rather horrid pink color and is supposed to permit relatively easy hatch...
Forum: RV-14 07-08-2022, 07:49 AM
Replies: 18
Views: 1,882
Posted By David Paule
2024 is significantly stronger than 6061. Dave

2024 is significantly stronger than 6061.

Dave
Forum: RV General Discussion/News 07-08-2022, 07:48 AM
Replies: 31
Views: 2,659
Posted By David Paule
Several years before I started my RV-3B project,...

Several years before I started my RV-3B project, I had a hangar neighbor with an RV-8. He had a very great deal of trouble with his cowl hinges. Made an impression.

And I've got a C180 with the...
Forum: RV Building Tips/Techniques 07-07-2022, 08:26 AM
Replies: 21
Views: 1,960
Posted By David Paule
First, if the gust lock won't protect the plane...

First, if the gust lock won't protect the plane in a 70 kt wind, it's insufficient.

Second, and this is an opinion, any gust lock should be designed so that the airplane cannot be operated with it...
Forum: RV Building Tips/Techniques 07-06-2022, 09:49 AM
Replies: 13
Views: 1,033
Posted By David Paule
I painted my roll bar (on the RV-3, it's a...

I painted my roll bar (on the RV-3, it's a home-made thing) with that 2-part Eastwood spray can paint.

It's easy to mix and works as advertised. The spray head is the best I've used yet. The paint...
Forum: My RV Build Project 07-04-2022, 10:00 AM
Replies: 642
Views: 436,412
Posted By David Paule
Added the glass to the front of this...

Added the glass to the front of this bulkhead.

https://i.imgur.com/okFZxhz.jpg

And then separated the hatch from the fairing and trimmed the bulkhead.

https://i.imgur.com/By3PgkL.jpg

Put it...
Forum: RV-3 07-02-2022, 07:27 AM
Replies: 35
Views: 3,386
Posted By David Paule
Adding the stiffener has no effect upon the...

Adding the stiffener has no effect upon the forces at the top of the gear leg where it meets the engine mount. But eliminating the shimmy removes that undesirable dynamic load, and that's got to be...
Forum: RV-3 07-01-2022, 07:11 PM
Replies: 35
Views: 3,386
Posted By David Paule
The idea of the stiffeners is to eliminate the...

The idea of the stiffeners is to eliminate the fore-aft motion if the gear leg as far as is reasonably possible.

With no motion, there can't be damping - damping requires motion to work.

And using...
Forum: RV-3 07-01-2022, 08:21 AM
Replies: 35
Views: 3,386
Posted By David Paule
As for the material, what DanH...

As for the material, what DanH said.

========

DO NOT WELD TO THE GEAR LEG!

You'd destroy the heat-treatment of it and add a stress concentration. In fact, except for the RV-3 slider, there's no...
Forum: RV-3 06-30-2022, 08:08 PM
Replies: 35
Views: 3,386
Posted By David Paule
A small factoid might be of interest. Aluminum,...

A small factoid might be of interest. Aluminum, steel and magnesium all have about the same stiffness to density (i.e., weight) ratio. But the buckling resistance is based upon both the stiffener's...
Forum: RV-3 06-30-2022, 08:02 PM
Replies: 35
Views: 3,386
Posted By David Paule
They would save weight and reduce the...

They would save weight and reduce the effectiveness of the stiffener, but probably not by a huge bunch. They'd be best located adjacent to the gear leg since the stiffener's effectiveness is based...
Forum: RV-3 06-30-2022, 05:01 PM
Replies: 35
Views: 3,386
Posted By David Paule
A harmonic vibration in the stiffener is unlikely...

A harmonic vibration in the stiffener is unlikely to have any effect, assuming it even happens, which I'd doubt. In any case stiffener vibration would be out of the plane of the stiffener and of low...
Forum: Tools 06-30-2022, 01:36 PM
Replies: 11
Views: 895
Posted By David Paule
The Smart Tool is handy but the zero is awkward...

The Smart Tool is handy but the zero is awkward to set. And it tends to run through 9V batteries.

There's probably a better one out there for the money.

Dave
Forum: Tools 06-27-2022, 10:38 AM
Replies: 32
Views: 3,863
Posted By David Paule
Med's suggestion of putting things on wheels is a...

Med's suggestion of putting things on wheels is a very good one. I rearranged my shop when I finished the empennage and started the wings, again when I finished those and started the fuselage, when I...
Forum: RV-4 06-26-2022, 01:10 PM
Replies: 65
Views: 13,021
Posted By David Paule
Thanks, Paul, this is good to know. Dave RV-3B...

Thanks, Paul, this is good to know.

Dave
RV-3B under construction, on gear, engine hung
Forum: Alternative Engines 06-20-2022, 09:28 AM
Replies: 68
Views: 10,484
Posted By David Paule
IAS, or more accurately, calibrated airspeed...

IAS, or more accurately, calibrated airspeed (CAS), includes the effects of air density, and thus is the appropriate speed to use for everything except flutter. CAS is what the structure is designed...
Forum: RV-10 06-19-2022, 08:01 PM
Replies: 22
Views: 3,153
Posted By David Paule
Easy... put it here on VAF. There's a handy...

Easy... put it here on VAF. There's a handy section for it in the red ellipse.

27232

And looky there, that's my log as the most recent.

Dave
Forum: My RV Build Project 06-19-2022, 07:25 PM
Replies: 642
Views: 436,412
Posted By David Paule
Before I can do any of the engine stuff, I’ve got...

Before I can do any of the engine stuff, I’ve got to get the cowl into shape. You might remember that the cowl cheek extensions were pending. I received the gray fiberglass RV-4 extensions. And since...
Forum: Tools 06-19-2022, 08:12 AM
Replies: 0
Views: 460
Posted By David Paule
3D Printer Review

Since some of you like to play around with these, I thought you might be interested in a survey and review of some of them. Here it is:

https://www.space.com/best-3d-printers

I don't use them, by...
Forum: RV General Discussion/News 06-18-2022, 10:42 AM
Replies: 11
Views: 898
Posted By David Paule
Have the plane facing forward into the wind.......

Have the plane facing forward into the wind.... Should have mentioned that.

Dave
Forum: RV General Discussion/News 06-18-2022, 08:37 AM
Replies: 11
Views: 898
Posted By David Paule
I have had good results by reducing the tire...

I have had good results by reducing the tire pressure till it's noticeably low, tying the bottom of the landing gear to the trailer or flatbed, and then reinflating the tires. That tensions the ties...
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