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Search: Posts Made By: David Paule
Forum: Job Board 11-14-2019, 08:14 PM
Replies: 32
Views: 1,850
Posted By David Paule
There are often jobs out of aerospace engineering...

There are often jobs out of aerospace engineering that are open to aerospace engineers. Some of these are in research and development, pointing systems, optics and similar.

Dave
Forum: My RV Build Project 11-03-2019, 11:36 AM
Replies: 440
Views: 233,116
Posted By David Paule
I survived and am home now. Dave

I survived and am home now.

Dave
Forum: RV General Discussion/News 10-20-2019, 08:34 PM
Replies: 2
Views: 557
Posted By David Paule
Some Rocket owners and, I think, RV-8 owners,...

Some Rocket owners and, I think, RV-8 owners, replaced their windshield with a flat wrap of acrylic. While that would involve removing the old windshield and redoing that connection to the fuselage...
Forum: RV-14 10-19-2019, 09:33 AM
Replies: 8
Views: 950
Posted By David Paule
I'm not familiar with the -14. Is there a hole...

I'm not familiar with the -14. Is there a hole already in the left wing skin for a pitot tube that you'll have to fill?

Dave
Forum: RV General Discussion/News 10-17-2019, 09:51 AM
Replies: 35
Views: 4,008
Posted By David Paule
Different Potential Ways To Eliminate Shimmy

It's interesting that there are several approaches to eliminating shimmy -

1. Increase the stiffness of the gear leg, like the OP did.

2. Change the moment of inertia in one axis to decouple the...
Forum: My RV Build Project 10-16-2019, 06:25 PM
Replies: 440
Views: 233,116
Posted By David Paule
David Howe, my mentor, sent me some test coupons...

David Howe, my mentor, sent me some test coupons to glue and rivet to see if my glue process works on top of the white Stewart Ekopoxy primer. Note that I’m not bonding to the primer at this time and...
Forum: RV-12/RV-12iS 10-16-2019, 09:43 AM
Replies: 34
Views: 3,171
Posted By David Paule
Different folks have different goals, don't we...

Different folks have different goals, don't we now?

I'm building a -3B slowbuild, fly a C180, and would like to have a -12Is. For that matter, I'd enjoy building one. My only gripe with it is that...
Forum: RV-12/RV-12iS 10-15-2019, 09:43 PM
Replies: 34
Views: 3,171
Posted By David Paule
To the OP, please remember that different people...

To the OP, please remember that different people building the various different models will all have different experiences. A kit like a -12 will need less unexpected things than the others, just as...
Forum: RV Ongoing Maintenance Issues 10-15-2019, 08:24 PM
Replies: 2
Views: 478
Posted By David Paule
Here you go....

Here you go. (http://www.vansairforce.net/articles/ImagesInForums/images.htm)

Right now I use a free account at Imgur.com or postimate.org or halie.com. All work fine.

Dave
Forum: RV-4 10-15-2019, 02:56 PM
Replies: 18
Views: 1,358
Posted By David Paule
Worth mentioning is that I used lead shot and...

Worth mentioning is that I used lead shot and West Systems epoxy for a marine project once. The lead would sometimes escape and the whole thing was a bit brittle. I regarded the part as marginally...
Forum: RV General Discussion/News 10-15-2019, 02:52 PM
Replies: 4
Views: 474
Posted By David Paule
Issues of potential structural integrity should...

Issues of potential structural integrity should be referred to the factory rather than us. We might not get it right.

Dave
Forum: RV General Discussion/News 10-14-2019, 09:51 AM
Replies: 35
Views: 4,008
Posted By David Paule
What was the fiber orientation? Since carbon can...

What was the fiber orientation?

Since carbon can contribute to dissimilar metal corrosion, how did you protect the bare steel? Or did you use some sort of primer between them, and if so, what...
Forum: RV General Discussion/News 10-13-2019, 02:21 PM
Replies: 44
Views: 5,386
Posted By David Paule
If you ever have an electrical problem, it'll be...

If you ever have an electrical problem, it'll be practically impossible to fix it.

My vote is to replace the wiring completely.

I'd start with getting a copy of the installation manuals for all the...
Forum: RV-14 10-07-2019, 04:52 PM
Replies: 17
Views: 1,251
Posted By David Paule
I just use saw horses for now. But then I'm...

I just use saw horses for now. But then I'm building an RV-3B and that's a MUCH smaller airplane than the RV-7 or later. With the engine, gear and tail off, it's easy to flip it to a reasonable...
Forum: Glass Cockpit 10-05-2019, 08:56 PM
Replies: 41
Views: 8,936
Posted By David Paule
You'll have to ask her or Steve. I think that...

You'll have to ask her or Steve. I think that it's ready, with the one tiny change I emailed Steve about.

Dave
Forum: Primers 10-05-2019, 07:20 PM
Replies: 13
Views: 1,021
Posted By David Paule
You can identify the material by cross-checking...

You can identify the material by cross-checking to Chapter 4, which has a detailed (and handy) parts list. It lists the material.

In your part of the country, you really should prime the parts or...
Forum: RV General Discussion/News 10-05-2019, 06:33 PM
Replies: 1,129
Views: 268,094
Posted By David Paule
I'm probably jumping the gun with this and if so...

I'm probably jumping the gun with this and if so I apologize.

For those of you using Gil Alexander's excellent Dynon network hub kit, described in this thread,...
Forum: Glass Cockpit 10-05-2019, 06:23 PM
Replies: 41
Views: 8,936
Posted By David Paule
Here's a nice little stand-off and protector that...

Here's a nice little stand-off and protector that Steve Melton developed and Amanda sold me. This is a prototype. It's a 3D printed plastic part that goes between this hub and whatever you're...
Forum: RV Building Tips/Techniques 10-05-2019, 04:42 PM
Replies: 24
Views: 2,498
Posted By David Paule
In those thicknesses, it would crack, too. You'd...

In those thicknesses, it would crack, too. You'd have to make several layers and let each dry before doing the next, using the pre-mixed compound.

Dave
Forum: Tools 10-04-2019, 09:46 AM
Replies: 16
Views: 800
Posted By David Paule
You guys are making it too hard. I rest the...

You guys are making it too hard.

I rest the C-frame on a table. I've got four pieces of wood, cut the right thickness so that when I lay a piece of 1/4" white-faced sheet on them, it's a "table" as...
Forum: Tools 10-03-2019, 05:44 PM
Replies: 16
Views: 800
Posted By David Paule
I like a C-frame and hammer, so I feel that the...

I like a C-frame and hammer, so I feel that the best place for the DRDT-2 is someone else's shop.

However, either one, DRDT-2 or C-frame, is going to need to have room for the full length of the...
Forum: RV General Discussion/News 10-02-2019, 08:25 PM
Replies: 21
Views: 1,178
Posted By David Paule
I think that Van's often mixes parts in a bag....

I think that Van's often mixes parts in a bag. They sure did for my RV_3B kits. Of course the RV-3B generally gets a hair less respect on parts than the newer kits (although good builder...
Forum: RV General Discussion/News 10-01-2019, 06:53 PM
Replies: 8
Views: 633
Posted By David Paule
I don't know how helpful this'll be, but the way...

I don't know how helpful this'll be, but the way I look at owning an airplane, is that the monthly and yearly recurring costs are merely what it takes to be in the game. Commit to that and you can...
Forum: RV Building Tips/Techniques 10-01-2019, 05:15 PM
Replies: 24
Views: 2,498
Posted By David Paule
Remember their purpose. No ripples or wrinkles...

Remember their purpose. No ripples or wrinkles desired.

Dave
Forum: RV-14 09-30-2019, 07:10 PM
Replies: 20
Views: 2,042
Posted By David Paule
Also don't neglect MGL and GRT. The big boys...

Also don't neglect MGL and GRT. The big boys aren't the only ones on the field.

What I did was to download the user manual for each one and see what I thought would be best for me. Then I did the...
Forum: RV Building Tips/Techniques 09-30-2019, 12:20 PM
Replies: 24
Views: 2,498
Posted By David Paule
Dan, can you give us the link to that?...

Dan, can you give us the link to that?

Thanks,
Dave
Forum: RV-12/RV-12iS 09-29-2019, 01:41 PM
Replies: 8
Views: 1,191
Posted By David Paule
a) - Close to zero. b) - Probably not, without...

a) - Close to zero.

b) - Probably not, without serious re-engineering and modification.

c) - Probably not.

d) - Nope, not a chance. BIG issues!

Airplanes are an interesting combination of...
Forum: Tools 09-29-2019, 10:12 AM
Replies: 29
Views: 2,038
Posted By David Paule
If it's not a QB, and maybe if it is, plan on one...

If it's not a QB, and maybe if it is, plan on one of those robot vacuums for the shop. They do make things nicer. Um, you did make the work bench bottoms high enough from the floor for one,...
Forum: RV-7/7A 09-28-2019, 07:23 PM
Replies: 5
Views: 656
Posted By David Paule
For about ten times the cost, this...

For about ten times the cost, this (https://acairtechnology.com/product/ac-tracktech-t-mini-non-wheel-fairing-economy-model/) will do the job. I have one of its brothers for my non-RV. Caveat, it...
Forum: Safety 09-28-2019, 11:05 AM
Replies: 58
Views: 9,493
Posted By David Paule
From experience, I know that a full survival...

From experience, I know that a full survival vest...
in a cockpit not designed for that bulk...
on a hot day...
is pretty much a non-starter. Especially for someone who's well past their 40s, and...
Forum: RV-14 09-27-2019, 01:35 PM
Replies: 10
Views: 1,144
Posted By David Paule
And when you do find a builder and they are...

And when you do find a builder and they are showing you their tools, expect to spend more than an hour learning and asking questions.

Dave
Forum: RV-14 09-27-2019, 10:00 AM
Replies: 10
Views: 1,144
Posted By David Paule
There are numerous threads about just this topic....

There are numerous threads about just this topic. Use the Advanced Search selection, at the bottom of the pop-up Search window, to close in on them.

Some tools in the kit aren't necessary or can be...
Forum: RV General Discussion/News 09-26-2019, 07:05 PM
Replies: 13
Views: 1,870
Posted By David Paule
If you use a solid rivet, can you squeeze it? By...

If you use a solid rivet, can you squeeze it?

By the way, good job, going through the plans and manual and double-checking things. You'll have a good safe airplane when it's all done.

Dave
Forum: RV General Discussion/News 09-26-2019, 07:00 PM
Replies: 21
Views: 1,423
Posted By David Paule
Welcome to the project! AC is good, but we need...

Welcome to the project!

AC is good, but we need that less often in Boulder, up the road from you a bit, than heat. I use 220 V radiant overheat heaters. My shop is only about 390 square feet, but...
Forum: RV-7/7A 09-24-2019, 07:53 PM
Replies: 15
Views: 943
Posted By David Paule
Can't see the photo. Dave

Can't see the photo.

Dave
Forum: Tools 09-24-2019, 10:21 AM
Replies: 13
Views: 1,259
Posted By David Paule
I bought a Rikon, and while it's an excellent...

I bought a Rikon, and while it's an excellent tool, it's probably overkill for an RV-12iS. Still, if you like working with good tools, have a look at the Rikon 10-326.

Dave
Forum: Alternative Engines 09-23-2019, 07:53 PM
Replies: 79
Views: 7,280
Posted By David Paule
Yes, you need to be able to mount a prop...

Yes, you need to be able to mount a prop governor. Look up how they work because there's more to it than merely having a drive shaft connection to it.

Dave
Forum: Primers 09-23-2019, 07:48 PM
Replies: 23
Views: 7,631
Posted By David Paule
I shot some other parts using the 1.8 mm tip and...

I shot some other parts using the 1.8 mm tip and got a smoother finish. My overall impression is that Ekopoxy is a good product, as long as you can put up with the mixing hassles and can spray it...
Forum: RV General Discussion/News 09-23-2019, 10:15 AM
Replies: 10
Views: 1,470
Posted By David Paule
One thing that you'll need is storage space for...

One thing that you'll need is storage space for the parts. There are a lot of parts. Look up the various ways to store the rivets and other hardware; I favor empty plastic water bottles for the...
Forum: Traditional Aircraft Engines 09-21-2019, 08:07 PM
Replies: 3
Views: 966
Posted By David Paule
Does this...

Does this help?

https://i.imgur.com/qF0kKut.jpg

Dave
Forum: RV-10 09-21-2019, 10:14 AM
Replies: 35
Views: 8,770
Posted By David Paule
On all of my belly fasteners that went through...

On all of my belly fasteners that went through the Fiberfrax, I made small .063 aluminum spacers. That way I had a solid Ti-al-al connection all the way through. With the Fiberfrax laid on top, it...
Forum: RV Building Tips/Techniques 09-20-2019, 07:01 PM
Replies: 167
Views: 164,704
Posted By David Paule
If the assembly is properly clecoed, it's okay to...

If the assembly is properly clecoed, it's okay to let the sealant cure before riveting. I did, intentionally.

Caveat - my tanks aren't flying yet.

Dave
Forum: RV-7/7A 09-19-2019, 01:34 PM
Replies: 11
Views: 1,663
Posted By David Paule
Try postimage.org. Easy to use, no account or...

Try postimage.org. Easy to use, no account or fees.

Dave
Forum: RV models of the future (RV-??) 09-18-2019, 04:21 PM
Replies: 481
Views: 134,021
Posted By David Paule
Decades ago, a buddy had built a Volmer Sportsman...

Decades ago, a buddy had built a Volmer Sportsman amphibian. It had an O-200 engine and he felt that it was underpowered. He came across a Lancer whose owner had already sold the engines, but had...
Forum: RV-8/8A 09-17-2019, 08:52 PM
Replies: 16
Views: 1,863
Posted By David Paule
Sewing is pretty easy, you know. It's a lot like...

Sewing is pretty easy, you know. It's a lot like airplane work. Trade the aluminum for fabric, the clecos for pins, and the rivets for thread.... and oh yeah, the rivet gun for a sewing machine.

Dave
Forum: My RV Build Project 09-17-2019, 12:45 PM
Replies: 440
Views: 233,116
Posted By David Paule
Yeah, thanks for the comment. That's a good place...

Yeah, thanks for the comment. That's a good place for screws. The rest of the seat pan is screwed down into nutplates. I'll need to decide if the steps get screwed or riveted to the seat pan, though...
Forum: My RV Build Project 09-16-2019, 07:36 PM
Replies: 440
Views: 233,116
Posted By David Paule
Here’s a photo of the EkoCrylic-painted tailcone...

Here’s a photo of the EkoCrylic-painted tailcone interior.

https://i.imgur.com/Ir4ctHa.jpg

One of the smaller things I did was to install the Adel clamps at the aft end of the rudder cables, to...
Forum: RV-10 09-16-2019, 10:48 AM
Replies: 3
Views: 428
Posted By David Paule
Perhaps the rivets are over-set. You can download...

Perhaps the rivets are over-set. You can download a riveting specification from Van's that gives the rivet heights. If I remember correctly,

-3 rivets, the shop head height should be .038 to .050...
Forum: RV Building Tips/Techniques 09-14-2019, 07:47 PM
Replies: 0
Views: 391
Posted By David Paule
Paint Color, Inside of Tailcone

Although the bulkheads are SEM gray and the side skins are zinc chromate, I had the sense to paint the top skin with a white epoxy primer. The idea was to make future maintenance easier by reflecting...
Forum: Alternative Engines 09-13-2019, 09:01 PM
Replies: 79
Views: 7,280
Posted By David Paule
And another request to consider at least an...

And another request to consider at least an option of a hydraulic constant speed prop. The way Lycoming does that, it's actually field-changeable between the CS and FP. It doesn't need to go back to...
Forum: Rocket 09-13-2019, 07:09 PM
Replies: 3
Views: 413
Posted By David Paule
There has been some serious discussion about...

There has been some serious discussion about this. Dan Horton did some testing and developed an excellent, thoughtful method of insulating the firewall. The insulation goes on the FRONT of the...
Forum: RV-9/9A 09-13-2019, 03:28 PM
Replies: 18
Views: 3,137
Posted By David Paule
Turner has it right - get a thorough inspection...

Turner has it right - get a thorough inspection by someone qualified. I recommend an AI, as they inspect planes for a living. Also, you inspect it, too, looking for anything that seems improper. Then...
Forum: RV General Discussion/News 09-13-2019, 09:48 AM
Replies: 11
Views: 930
Posted By David Paule
The list of extras can be...

The list of extras can be long.

Paint
Tools
Avionics
Instrumentation
Upholstery
Prop
Muffler
Electrical parts
Forum: Propellers 09-11-2019, 11:50 AM
Replies: 24
Views: 2,596
Posted By David Paule
Adjusting a CS prop for cruise is easy - Select a...

Adjusting a CS prop for cruise is easy - Select a desired rpm with the prop control and tach, and select manifold pressure with the throttle and manifold pressure indicator. Done.

The manifold...
Forum: RV Photo/Video URLs 09-09-2019, 04:13 PM
Replies: 225
Views: 167,881
Posted By David Paule
"Boomer Badge," to clarify.... An indication of...

"Boomer Badge," to clarify....

An indication of being in the Boomer generation. Other signs include a gray beard. And of course, I have that, too.

I knew of the submarine class but this is the one...
Forum: RV Photo/Video URLs 09-09-2019, 12:50 PM
Replies: 225
Views: 167,881
Posted By David Paule
Hat Problem

Started to put on my VAF cap the other day, and a phrase popped into my mind: "Boomer badge."

Have had trouble wearing ball caps since.

How about some tee shirts?

Dave
Forum: RV-3 09-08-2019, 04:59 PM
Replies: 5
Views: 694
Posted By David Paule
What happened to the RV-3 stuff? Any prospective...

What happened to the RV-3 stuff?

Any prospective builder of that should become aware of the various service notes and bulletins.

Dave
RV-3B under construction
Forum: RV-3 09-08-2019, 02:52 PM
Replies: 5
Views: 694
Posted By David Paule
The canopy has dimensions similar to my RV-3B...

The canopy has dimensions similar to my RV-3B canopies and would fit an RV-3. While I don't have a frame to compare, yours does look like the ones I've seen.

See...
Forum: RV General Discussion/News 09-08-2019, 10:58 AM
Replies: 13
Views: 1,468
Posted By David Paule
Once you've put all that extra inertia on the end...

Once you've put all that extra inertia on the end of the round gear legs, they'll be more likely to shimmy.

Dave
Forum: My RV Build Project 09-07-2019, 10:55 AM
Replies: 440
Views: 233,116
Posted By David Paule
Been working on small stuff for now. I added a...

Been working on small stuff for now. I added a couple Adel clamp tabs to some stringers, things like that. Here’s one of the things, the shoulder harness attachments. I’d seen one RV-3B that had the...
Forum: RV General Discussion/News 09-06-2019, 08:43 PM
Replies: 80
Views: 11,377
Posted By David Paule
"It Never Hurts To Ask."

Quite a while ago, I did some business with someone in the entertainment industry. The details don't matter. What matters is the lesson I learned.

The other party made a very lowball suggestion and...
Forum: RV General Discussion/News 09-05-2019, 08:08 PM
Replies: 6
Views: 433
Posted By David Paule
My non-RV has a powder-coated engine mount. Have...

My non-RV has a powder-coated engine mount. Have to say that was a mistake. It discolored and softened under the heat. On my RV-3B project, I made a simple resolution: since so many of the steel...
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