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Search: Posts Made By: David Paule
Forum: RV Photo/Video URLs Yesterday, 11:13 AM
Replies: 6
Views: 429
Posted By David Paule
Ages ago, I was living in Lancaster, CA, on the...

Ages ago, I was living in Lancaster, CA, on the Mojave desert. One day I rented an old Champ and flew it out to the west end of the valley. I'll never forget the poppy superbloom.

I was flying at a...
Forum: RV General Discussion/News Yesterday, 09:38 AM
Replies: 69
Views: 2,740
Posted By David Paule
To me, anything more than an occasional roll...

To me, anything more than an occasional roll simply isn't fun. Your poll presumes that the activity is fun; to me it isn't.

Dave
Forum: RV General Discussion/News 03-17-2019, 06:56 PM
Replies: 16
Views: 2,110
Posted By David Paule
How does the torsional stiffness compare to the...

How does the torsional stiffness compare to the stock one?

Dave
Forum: RV General Discussion/News 03-17-2019, 05:27 PM
Replies: 16
Views: 2,110
Posted By David Paule
Don't forget to flutter-qualify it! And since...

Don't forget to flutter-qualify it!

And since the area looks reduced, be sure to run it through the full set of lateral-directional stability and control tests.

Dave
Forum: RV-3 03-16-2019, 02:34 PM
Replies: 61
Views: 55,313
Posted By David Paule
Instrument Panel Dimensions

The drawing isn't accurate. Here's what I started with. Then I used some curves and faired it from there. Seems to be okay.

0 and 9.67 or 9.65

1 and 9.65

2 and 9.56

3 and 9.38
Forum: RV-3 03-16-2019, 02:30 PM
Replies: 2
Views: 154
Posted By David Paule
Here's what I started with. Then I used some...

Here's what I started with. Then I used some curves and faired it from there. Seems to be okay.

0 and 9.67 or 9.65

1 and 9.65

2 and 9.56

3 and 9.38
Forum: RV Building Tips/Techniques 03-15-2019, 08:36 PM
Replies: 13
Views: 767
Posted By David Paule
I use a dial or digital caliper. They have the...

I use a dial or digital caliper. They have the capability of measuring the depth of a hole or step, so I place the end of the body on the head of the rivet, and the stem on the skin. It's important...
Forum: Midwest 03-15-2019, 10:53 AM
Replies: 13
Views: 485
Posted By David Paule
At Longmont, don't overfly the center of the...

At Longmont, don't overfly the center of the field - that's where the jumpers land. They seem to be under canopy by 8k', usually, and the jump plane calls the drop on CTAF.

Dave
Forum: RV General Discussion/News 03-14-2019, 10:00 AM
Replies: 18
Views: 1,427
Posted By David Paule
Note that Dan is describing putting the carbon on...

Note that Dan is describing putting the carbon on the outside plies, although one is covered by glass as a corrosion barrier to the airframe. The reason for using it on the outside plies is to have...
Forum: RV General Discussion/News 03-14-2019, 09:53 AM
Replies: 37
Views: 2,627
Posted By David Paule
So far, the shipping is running just under 4% of...

So far, the shipping is running just under 4% of the total.

I've got the airframe and finishing kits, after-market canopy, engine, and a number of the smaller things, including some of the...
Forum: RV-14 03-12-2019, 09:35 AM
Replies: 16
Views: 1,029
Posted By David Paule
Thanks, Larry, for posting the part number and...

Thanks, Larry, for posting the part number and source name. Saved me looking it up. They have good service.

I'd been using the non-coated magnets but switched. The non-coated ones are too hard to...
Forum: RV-14 03-12-2019, 09:30 AM
Replies: 8
Views: 1,069
Posted By David Paule
This is mine. It's from the 2017 Van's...

This is mine. It's from the 2017 Van's calendar.

https://i.imgur.com/cWLo0aZ.jpg

The airplane is an RV-3, which works for me.

Dave
RV-3B, working on the fuselage
Forum: My RV Build Project 03-11-2019, 06:49 PM
Replies: 403
Views: 200,284
Posted By David Paule
I bolted the engine mount on again and rigged the...

I bolted the engine mount on again and rigged the right gear leg and pilot-drilled it to 1/8Ē. This photo shows the drill guide I used - I made it. Later, Rick drilled and reamed it out to .311, and...
Forum: RV-9/9A 03-08-2019, 04:47 PM
Replies: 7
Views: 507
Posted By David Paule
If it won't fit in my bandsaw, I simply use a...

If it won't fit in my bandsaw, I simply use a hacksaw. It's abut as fast.

In fact, it's just not an issue.

Dave
RV-3B workin' away on the fuselage
Forum: Propellers 03-07-2019, 05:50 PM
Replies: 4
Views: 614
Posted By David Paule
Constant Speed Whirlwind Prop Poll

I'm interested in getting one of Wirlwind's constant speed props one of these days for the RV-3B that I'm building, and apparently the customer service or delivery estimates aren't always...
Forum: RV-7/7A 03-06-2019, 09:43 AM
Replies: 12
Views: 699
Posted By David Paule
Check first to see if there's a supplier of metal...

Check first to see if there's a supplier of metal near you that carries the sizes used in the longeron in the same alloy, probably 6061-T6. If there is, then you can buy a replacement locally if...
Forum: RV General Discussion/News 03-05-2019, 12:05 PM
Replies: 9
Views: 875
Posted By David Paule
You might as well start the company up. My C180...

You might as well start the company up. My C180 weighs as much as Paul's Tundra and heck, while I can still push it around, that 1" edge on the hangar floor is getting harder.

Dave
Forum: RV-3 03-04-2019, 10:00 AM
Replies: 3
Views: 630
Posted By David Paule
Wonderful!

Man, that was great! Thanks so much!

And if you'd be kind enough to send me the lyrics, that would be the icing on the cake.

Thanks again,

Dave
RV-3B, now working on the fuselage
Forum: Alternative Engines 03-02-2019, 10:34 AM
Replies: 153
Views: 29,160
Posted By David Paule
Heck, I'd be thrilled merely to have a higher...

Heck, I'd be thrilled merely to have a higher Vne. Just that.

Dave
RV-3B, now working on the canoe
Forum: RV Photo/Video URLs 03-02-2019, 09:53 AM
Replies: 9
Views: 964
Posted By David Paule
Modest suggestion.... reduce the width of the...

Modest suggestion.... reduce the width of the photos to 800 pixels. That shows up well on most screens. Wider photos cause the forum to be compressed so that the photo can be shown, and then the text...
Forum: VAF Classifieds (posts in here deleted after 30 days) 03-02-2019, 09:48 AM
Replies: 2
Views: 1,152
Posted By David Paule
Lance, best wishes with the -8 and generally....

Lance, best wishes with the -8 and generally.

I've got one of your canopies and based only on that ordering experience and the canopy itself, am sorry that you've sold the business -- but very glad...
Forum: Electrical Systems 03-02-2019, 09:43 AM
Replies: 41
Views: 1,831
Posted By David Paule
I had a contactor fail on a certified airplane,...

I had a contactor fail on a certified airplane, fortunately on the ground.

Dave
Forum: RV Building Tips/Techniques 02-26-2019, 09:02 PM
Replies: 2
Views: 340
Posted By David Paule
In this case, that would not have helped. Dave

In this case, that would not have helped.

Dave
Forum: RV Building Tips/Techniques 02-26-2019, 07:07 PM
Replies: 2
Views: 340
Posted By David Paule
Drilling Tapered Holes For Landing Gear Tapered Pins

After a lot of headaches, a local RV-6a owner, Rick Brennan, came to my rescue and finally got the tapered pin hole through the left main gear mount of my RV-3B. The gear leg geometry is the same as...
Forum: My RV Build Project 02-26-2019, 06:55 PM
Replies: 403
Views: 200,284
Posted By David Paule
Thanks to Rick Brennan!

Since then, progress has been made: the tapered pin is within 1/8”, which is about the axial equivalent, roughly, to the .004" diameter needed of being ready for assembly. The final eighth inch,...
Forum: RV General Discussion/News 02-25-2019, 09:37 AM
Replies: 12
Views: 843
Posted By David Paule
It could be cut in more than half. Bonding is...

It could be cut in more than half. Bonding is adequately strong, according to the pull samples. You'd still need rivets in a few places, though.

It's very slow, even in the crude form I'm doing it....
Forum: RV General Discussion/News 02-24-2019, 08:02 PM
Replies: 12
Views: 843
Posted By David Paule
It's not a trivial matter to prepare aluminum for...

It's not a trivial matter to prepare aluminum for a reliable bond. I'm sure that others are more knowledgeable than I am about that.

Some folks might remember that I'm bonding and riveting my RV-3B...
Forum: RV-7/7A 02-24-2019, 02:06 PM
Replies: 52
Views: 4,358
Posted By David Paule
These are photos that Jon sent about...

These are photos that Jon sent about this.

Dave


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

https://i.imgur.com/Piwlu6A.jpg
Forum: My RV Build Project 02-19-2019, 04:56 PM
Replies: 403
Views: 200,284
Posted By David Paule
I won't be wearing the old-style seat-type...

I won't be wearing the old-style seat-type parachute. If I wear one at all, it'll be a back cushion type. And the seat pan change is permanent.

Frankly, I don't see what the fuss is about. Here are...
Forum: Traditional Aircraft Engines 02-18-2019, 12:59 PM
Replies: 11
Views: 1,736
Posted By David Paule
The Five Rules for Good Engineering are: 1. Part...

The Five Rules for Good Engineering are:

1. Part of the art of being a good engineer is knowing where to steal good ideas.

2. Get it good enough and get...
Forum: My RV Build Project 02-18-2019, 11:34 AM
Replies: 403
Views: 200,284
Posted By David Paule
I suppose the future will have to figure that one...

I suppose the future will have to figure that one out for itself, Finn, it's not on my list of things to worry about.

The rudder pedals are ground-adjustable and the cushions will be too. If I...
Forum: My RV Build Project 02-17-2019, 06:43 PM
Replies: 403
Views: 200,284
Posted By David Paule
The RV-3B has a depression in the seat pan to...

The RV-3B has a depression in the seat pan to accommodate a large pilot, which Iím not. Typically, the builder adds foam to fill the shape. Iíve heard that some of the seat cushions get pretty...
Forum: RV Ongoing Maintenance Issues 02-17-2019, 10:05 AM
Replies: 23
Views: 2,792
Posted By David Paule
Can you get the jack under the flat bottom of the...

Can you get the jack under the flat bottom of the mount without using that bolt?

Dave
Forum: RV Ongoing Maintenance Issues 02-16-2019, 07:47 PM
Replies: 23
Views: 2,792
Posted By David Paule
Thanks for sharing this! It's a good idea and...

Thanks for sharing this! It's a good idea and definitely feasible without a machine shop.

Nicely done.

Dave
RV-3B, still on the fuselage
Forum: RV-12/RV-12iS 02-12-2019, 08:27 AM
Replies: 16
Views: 2,305
Posted By David Paule
Don't forget that when the RV-12iS came out, the...

Don't forget that when the RV-12iS came out, the used value of an RV-12 probably dropped.

Dave
Forum: RV General Discussion/News 02-09-2019, 07:33 PM
Replies: 61
Views: 5,622
Posted By David Paule
Got it, thanks. And it makes a lot of sense,...

Got it, thanks. And it makes a lot of sense, too.

Dave
Forum: RV General Discussion/News 02-09-2019, 05:13 PM
Replies: 61
Views: 5,622
Posted By David Paule
Semi-Related Advice Wanted

I hope this isn't too big a diversion.

On my RV-3B project, while I have a way to go, I've been thinking of mounting my small non-standard oil cooler directly to the top engine baffle.

Would it be...
Forum: Propellers 02-08-2019, 06:35 PM
Replies: 71
Views: 12,918
Posted By David Paule
Yes it is, but the actual value depends on a...

Yes it is, but the actual value depends on a number of things, including the particular materials used and their orientation.

Dave
Forum: RV General Discussion/News 02-08-2019, 11:25 AM
Replies: 13
Views: 772
Posted By David Paule
Well, after reading the comments following my...

Well, after reading the comments following my post #2, I'm inclined to change my mine. However, I think that it would need to be carefully moderated to both stay on topic and permit the occasional...
Forum: RV General Discussion/News 02-07-2019, 11:00 AM
Replies: 13
Views: 772
Posted By David Paule
There's already a flight-testing forum, and it...

There's already a flight-testing forum, and it seems to me that this topic would best fit into that.

Instrumentation and data analysis is a part of flight testing, and as the inclusion of fuel flow...
Forum: RV-6/6A 02-06-2019, 07:50 PM
Replies: 11
Views: 2,016
Posted By David Paule
Van's has this...

Van's has this (https://www.vansaircraft.com/faq-technical-builder-items/how-to-diagnose-and-fix-a-heavy-wing/) about the heavy wing.

Dave
Forum: RV General Discussion/News 02-06-2019, 03:33 PM
Replies: 31
Views: 1,776
Posted By David Paule
Would you need the artificial horizon if you...

Would you need the artificial horizon if you install a second ADAHRS?

Dave
Forum: RV General Discussion/News 02-04-2019, 03:18 PM
Replies: 61
Views: 5,622
Posted By David Paule
Based on nothing more than wrapping a cord around...

Based on nothing more than wrapping a cord around the roof rack bar on my truck, a single wrap or maybe a 1.5 turn wrap is sufficient.

The truck goes generally less than 75 mph, the bar is about an...
Forum: RV-7/7A 02-04-2019, 01:19 PM
Replies: 6
Views: 982
Posted By David Paule
I'd do the wings. They're easier to store, being...

I'd do the wings. They're easier to store, being flat, and when you get to the fuselage, you'll probably want to start installing the engine and systems soon after. The wings aren't needed for most...
Forum: RV Building Tips/Techniques 02-03-2019, 07:53 PM
Replies: 10
Views: 1,106
Posted By David Paule
I have a few of those and use them only rarely. I...

I have a few of those and use them only rarely. I don't have a Scotchbrite grinder wheel and have never seen a need for those.

Personally, I think that a good Vixen file, a couple of mill files and...
Forum: Safety 02-03-2019, 10:07 AM
Replies: 47
Views: 3,848
Posted By David Paule
Probably any sort of sideward g load, causing the...

Probably any sort of sideward g load, causing the tail to try to bend sidways. But often in a crash, the results are so nonlinear and large-deflection, that things happen which can't be assessed...
Forum: Safety 02-02-2019, 09:39 AM
Replies: 47
Views: 3,848
Posted By David Paule
The airframe design is rather important. For more...

The airframe design is rather important. For more insight, download the "Small Airplane Crashworthiness Design Guide," a free pdf. You'll have to search for it but it's an easy search.

One thing...
Forum: RV General Discussion/News 01-31-2019, 05:38 PM
Replies: 40
Views: 12,384
Posted By David Paule
It would be hard to make it attractive, at least...

It would be hard to make it attractive, at least on the non side-by-side models, I think. And a flat panel that can resist a bird strike up to Vne would be heavy, plus it would need stout support...
Forum: RV General Discussion/News 01-30-2019, 07:42 PM
Replies: 890
Views: 194,674
Posted By David Paule
Consider the "high-tech" double braids from the...

Consider the "high-tech" double braids from the marine world. With their core of Dyneema or other fibers, they are very strong and not very stretchable. You can reduce the diameter considerably.

But...
Forum: Trip Write-ups 01-28-2019, 03:26 PM
Replies: 9
Views: 1,719
Posted By David Paule
Oh, I don't know about that. I remember a flight...

Oh, I don't know about that.

I remember a flight I took as a passenger, back when I had a license but no airplane. I hadn't flown in 12 years. It was a scenic flight around Mt Cook in NZ.

When I...
Forum: My RV Build Project 01-28-2019, 11:06 AM
Replies: 403
Views: 200,284
Posted By David Paule
Pattern Time

The strip for the Mil-Spec quarter-turn fasteners for the top of the cowling now has a pattern, not shown. I had a bit of aluminum for that, but itís one inch too narrow, since I need to allow for...
Forum: RV-3 01-27-2019, 11:21 AM
Replies: 13
Views: 2,047
Posted By David Paule
Keith, no, I don't. Mike, you presented the best...

Keith, no, I don't.

Mike, you presented the best ideas thus far for a slider canopy. For looks, it can't be beat, I think, but mine will be a tip-over. If nothing else, it eliminates the big cut,...
Forum: RV-8/8A 01-26-2019, 08:26 PM
Replies: 9
Views: 800
Posted By David Paule
I'm building an RV-3B, where nothing is...

I'm building an RV-3B, where nothing is pre-drilled. I get to drill everything. My source for drill bits is

www.gen-aircraft-hardware.com, 877-434-6889 for you easterners. The west phone number is...
Forum: RV-10 01-25-2019, 03:42 PM
Replies: 11
Views: 1,108
Posted By David Paule
See DanH's postings about firewall...

See DanH's postings about firewall insulation.

The light vendors, in their installation drawings, generally recommend a wire size.

Use the Van's static ports for best static source...
Forum: Fiberglass 01-24-2019, 03:20 PM
Replies: 101
Views: 129,422
Posted By David Paule
The polyester peel ply does not particularly like...

The polyester peel ply does not particularly like compound curves. In those places, I use it in strips, slightly overlapping. That works well enough.

I make sure that there's an edge or corner or...
Forum: RV General Discussion/News 01-24-2019, 03:17 PM
Replies: 21
Views: 1,751
Posted By David Paule
I would definitely retest, in your situation,...

I would definitely retest, in your situation, ensuring that both situations, wheel pants on and wheel pants off, were properly documented, and the various speeds to fly noted for each...
Forum: Tools 01-23-2019, 11:36 AM
Replies: 8
Views: 1,002
Posted By David Paule
I have one and have used it for a number of...

I have one and have used it for a number of holes. Minimum hole diameter is about 2". The edges of the hole come out rough and I need to go back with a large sanding drum to smooth it out.

Once the...
Forum: RV General Discussion/News 01-22-2019, 02:37 PM
Replies: 9
Views: 1,002
Posted By David Paule
According to the riveting specification document...

According to the riveting specification document on Van's Support, FAQs page, it's acceptable to use flat rivet sets on these rivets. The text and paragraph number is:

"3.3.3.2 Rivet set. Flat dies...
Forum: RV General Discussion/News 01-22-2019, 10:08 AM
Replies: 15
Views: 1,631
Posted By David Paule
Thanks, Marshall, for the great tools that I use...

Thanks, Marshall, for the great tools that I use every day.

Either you made them or you taught the people who made them, I figure.

Good job!

Dave
RV-3B, now on the fuselage
Forum: RV General Discussion/News 01-21-2019, 07:31 PM
Replies: 31
Views: 1,877
Posted By David Paule
Insulate the heck out of whatever you build. If...

Insulate the heck out of whatever you build. If you can, insulate under the floor, too. Too much insulation is almost enough.

I've heard that the very best hangar heat is a heated slab. My hangar...
Forum: My RV Build Project 01-20-2019, 09:31 AM
Replies: 403
Views: 200,284
Posted By David Paule
Russell sent me a photo of Larry DeCamp's plane,...

Russell sent me a photo of Larry DeCamp's plane, showing how he’s attaching the forward top skin to the sides. He’s installed an angle, riveted to the top longeron, for the top skin to attach to. I...
Forum: Tools 01-18-2019, 10:03 AM
Replies: 22
Views: 7,399
Posted By David Paule
Also add a #19 reamer for those #8 screw...

Also add a #19 reamer for those #8 screw holes.

Dave
RV-3B, building the fuselage
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