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Search: Posts Made By: David Paule
Forum: VAF Classifieds (posts in here deleted after 30 days) Today, 08:07 AM
Replies: 0
Views: 1
Posted By David Paule
Free RV-6 Parts

I mentoring for a student RV-12iS project in Longmont CO and they were donated some RV-6 stuff.

A couple sheets of .020 or so aluminum, about tail size,

2 elevator skins,

1 vertical stabilizer...
Forum: VAF Classifieds (posts in here deleted after 30 days) Today, 07:43 AM
Replies: 6
Views: 593
Posted By David Paule
Sorry posted that the way I did. It was indeed...

Sorry posted that the way I did. It was indeed difficult to find. I knew the price was wrong because I'd bought one a not all that long ago myself.

Decided that it won't fit my RV-3B and will use...
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 04:18 PM
Replies: 6
Views: 593
Posted By David Paule
Interesting that getting an empty battery box/...

Interesting that getting an empty battery box/ (https://earthxbatteries.com/product/empty_e_case-for-fitment/) from the factory is only $18....

Dave
Forum: My RV Build Project 05-14-2022, 07:24 PM
Replies: 636
Views: 419,599
Posted By David Paule
Along with the cowl cheek bulkhead flange...

Along with the cowl cheek bulkhead flange orientation, there’s another burning question. Do the cowl cheek extensions end at the spar bulkhead as shown in SK-86 or do they extend aft a...
Forum: Primers 05-14-2022, 12:10 PM
Replies: 15
Views: 394
Posted By David Paule
I use lacquer thinner, then the maroon...

I use lacquer thinner, then the maroon Scotchbrite, then either lacquer thinner or isopropyl alcohol, at least 91%. Clean it enough so that there's no trace of anything left on your rag or paper...
Forum: Traditional Aircraft Engines 05-12-2022, 12:53 PM
Replies: 8
Views: 518
Posted By David Paule
Carbon can be very thermally conductive. I've had...

Carbon can be very thermally conductive. I've had clients use it specifically for that attribute, as a heat conductor. If you design such a thing, it's something to consider. Its thermal deformation,...
Forum: RV General Discussion/News 05-11-2022, 08:04 AM
Replies: 26
Views: 1,414
Posted By David Paule
As Mike said, using a robot vacuum is a definite...

As Mike said, using a robot vacuum is a definite shop aid. It's in addition to your regular shop vac, which you'll also need. The thing about the robot vacuum is that you need to allow for it to go...
Forum: RV General Discussion/News 05-10-2022, 07:31 PM
Replies: 26
Views: 1,414
Posted By David Paule
Electric outlets at just above workshop height,...

Electric outlets at just above workshop height, located every 4' or 5' apart, all around all the walls. Extra outlets near the large door.

Dave
Forum: RV Building Tips/Techniques 05-10-2022, 11:16 AM
Replies: 3
Views: 318
Posted By David Paule
You're better off getting the MS21042 nuts...

You're better off getting the MS21042 nuts instead, since that specification explicitly says that it is interchangeable with AN365 nuts, which the nut you mentioned does not. As for finish, Aircraft...
Forum: RV-3 05-09-2022, 11:13 AM
Replies: 10
Views: 3,528
Posted By David Paule
The accident appears to have been caused by...

The accident appears to have been caused by unrelated factors from whether or not the plane was being operated as an open-cockpit plane.

Dave
Forum: RV General Discussion/News 05-09-2022, 10:24 AM
Replies: 9
Views: 646
Posted By David Paule
Or you can get a can and try it yourself. When I...

Or you can get a can and try it yourself.

When I bought my C180, the interior was quite dirty. The plane was over 30 years old at the time and while the upholstery was fine, the belly and tailcone...
Forum: RV General Discussion/News 05-08-2022, 04:41 PM
Replies: 9
Views: 646
Posted By David Paule
Even the smallest hole I tried had a steady...

Even the smallest hole I tried had a steady stream of water from it, until the water got to within maybe 1/4", when it started dripping. Should have mentioned that. The larger holes had less drip...
Forum: RV General Discussion/News 05-08-2022, 01:13 PM
Replies: 9
Views: 646
Posted By David Paule
Drain Hole Diameter vs. Drain Time

Since I hadn't seen any quantitative data for this, I decided to test it.

The test set-up was an empty 4 oz. can of chiles, set up on a rack in the kitchen sink so that I could have ready access to...
Forum: ADS-B 05-06-2022, 06:15 PM
Replies: 5
Views: 328
Posted By David Paule
I have no idea what units Garmin likes to play...

I have no idea what units Garmin likes to play with, but I have Lynx NGT-9000. It's a nice unit if you have room for it. It has two tiny screens that you can configure. The screens are sharp, clear...
Forum: RV General Discussion/News 05-06-2022, 02:23 PM
Replies: 20
Views: 2,473
Posted By David Paule
Forget the 3X edge distance. For our planes it's...

Forget the 3X edge distance. For our planes it's 2X per Scott's post.

For the dimples, the ones in the photos aren't being squeezed enough. You can't over-squeeze them. If you're using a squeezer,...
Forum: My RV Build Project 04-27-2022, 11:20 AM
Replies: 636
Views: 419,599
Posted By David Paule
Thanks - I hadn't known the origin of the...

Thanks - I hadn't known the origin of the quote.

Incidentally, here's a look at SK-82, which shows the firewall and cowl. You can see why I commented about either the flange direction or the or the...
Forum: RV General Discussion/News 04-26-2022, 07:29 PM
Replies: 7
Views: 860
Posted By David Paule
Yeah, it can. Don't be kidded. In a ground loop,...

Yeah, it can. Don't be kidded. In a ground loop, there's a lot of skidding and so on going on. Tires lift off the ground sometimes.

But a locking tailwheel has a history of some success there.

Dave
Forum: Fiberglass 04-26-2022, 06:15 PM
Replies: 28
Views: 2,507
Posted By David Paule
How do you get a smooth contour at the...

How do you get a smooth contour at the intersections?

Dave
Forum: My RV Build Project 04-25-2022, 07:44 PM
Replies: 636
Views: 419,599
Posted By David Paule
I decided to install the stainless steel fuel...

I decided to install the stainless steel fuel line from the firewall to the gascolator, only to find that it didn’t come close to fitting. That was one of the parts I’d made a pattern for while the...
Forum: RV Building Tips/Techniques 04-24-2022, 08:30 AM
Replies: 13
Views: 782
Posted By David Paule
You mentioned landing lights. With LED lights,...

You mentioned landing lights. With LED lights, the current drain is small. Please leave those lights on all the time - on a hazy day, it will definitely make your plane more visible.

I had two...
Forum: RV General Discussion/News 04-23-2022, 06:40 PM
Replies: 31
Views: 2,544
Posted By David Paule
A certified airplane has a pile of analysis and...

A certified airplane has a pile of analysis and has been tested. The documentation is extensive and includes a thorough description of a what the conforming configuration is. The applicable loads...
Forum: RV-7/7A 04-21-2022, 06:13 PM
Replies: 34
Views: 2,612
Posted By David Paule
I have an ordinary dowel, marked at 2 gallon...

I have an ordinary dowel, marked at 2 gallon increments with notches. I used pencil to identify those. The only downside is that it does soak up a bit of fuel, so it needs to dry out befor I can put...
Forum: Midwest 04-21-2022, 09:59 AM
Replies: 6
Views: 719
Posted By David Paule
I live near it, in Boulder, but rarely fly out of...

I live near it, in Boulder, but rarely fly out of it. Nothing wrong with the place as far as I know.... as for nearby cities, it's close to Lafayette, Erie, and down the road a bit, Louisville and...
Forum: My RV Build Project 04-18-2022, 08:09 AM
Replies: 636
Views: 419,599
Posted By David Paule
The cad plating was done by an aerospace plating...

The cad plating was done by an aerospace plating company, which unfortunately is no longer in business. The engine mount was masked beforehand and baked afterwards, to prevent those issues. It was...
Forum: My RV Build Project 04-17-2022, 08:28 AM
Replies: 636
Views: 419,599
Posted By David Paule
Thanks! Rick and Larry did the hard stuff. For...

Thanks!

Rick and Larry did the hard stuff. For me, mostly this just opens the gate to a lot more work... as you know. Kinda looking forward to it.

Dave
Forum: My RV Build Project 04-16-2022, 06:41 PM
Replies: 636
Views: 419,599
Posted By David Paule
The small weld issue mentioned above is an...

The small weld issue mentioned above is an incomplete weld. It had the appearance of a crack but wasn’t, exactly.
I’m an old aerospace engineer and have done many crack propagation analyses, and...
Forum: Tools 04-16-2022, 07:49 AM
Replies: 13
Views: 1,107
Posted By David Paule
Did the same as Mile High Relic and am completely...

Did the same as Mile High Relic and am completely satisfied.

Dave
Forum: Tools 04-15-2022, 07:54 AM
Replies: 25
Views: 2,041
Posted By David Paule
Can you get them plated? Dave

Can you get them plated?

Dave
Forum: My RV Build Project 04-14-2022, 06:47 PM
Replies: 636
Views: 419,599
Posted By David Paule
Thanks, Scott. The small weld issue mentioned...

Thanks, Scott.

The small weld issue mentioned above is an incomplete weld. It had the appearance of a crack but wasn’t, exactly.
I’m an old aerospace engineer and have done many crack propagation...
Forum: RV General Discussion/News 04-13-2022, 08:41 PM
Replies: 11
Views: 972
Posted By David Paule
Things I'd look for are battery cost, life and...

Things I'd look for are battery cost, life and availability, antenna size, difficulty of mounting or wiring it up, and the biggie - whether it has a stand-alone GPS receiver and how big the antenna...
Forum: Tools 04-13-2022, 11:26 AM
Replies: 3
Views: 318
Posted By David Paule
I've got a Dremel model 3000, only 1.2 amps but...

I've got a Dremel model 3000, only 1.2 amps but it seems satisfactory. My old Master Craft one wore out, unfortunately, since I preferred it. Still, it left behind its case, which fits the Dremel and...
Forum: RV-3 04-13-2022, 10:10 AM
Replies: 7
Views: 629
Posted By David Paule
On mine, it appears as if I used a double row....

On mine, it appears as if I used a double row. The wings are at the hangar and I'm at home, so I can't easily have a look. But here's a photo from my VAF blog:

24585

We're looking at the aft...
Forum: RV-10 04-11-2022, 04:16 PM
Replies: 7
Views: 868
Posted By David Paule
Chrome plating requires that the parts be baked...

Chrome plating requires that the parts be baked immediately after plating to avoid hydrogen embrittlement. Without that, they could succumb to premature failure.

Dave
Forum: My RV Build Project 04-10-2022, 10:51 AM
Replies: 636
Views: 419,599
Posted By David Paule
I had to finish off the bottom of the firewall...

I had to finish off the bottom of the firewall overlay, as you can see on the last photo in the previous post. There’s no bottom flange on an RV-3B firewall. I made an angle of .020 Titanium and used...
Forum: RV Ongoing Maintenance Issues 04-09-2022, 04:05 PM
Replies: 5
Views: 510
Posted By David Paule
I have in the past here on VAF described an...

I have in the past here on VAF described an aluminum strip that runs the length of the gear leg, held on with around 7 Adel clamps. The strips seem to run 1/8 x 1.5 straight-sided to 3/8 x 2, tapered...
Forum: Primers 04-08-2022, 10:04 PM
Replies: 5
Views: 467
Posted By David Paule
My experience with that primer was poor. it kept...

My experience with that primer was poor. it kept clogging the nozzle and spraying unevenly, depositing actual drops of paint.

Dave
Forum: Tools 04-08-2022, 11:30 AM
Replies: 6
Views: 636
Posted By David Paule
Cleaveland is the dimple die source of choice....

Cleaveland is the dimple die source of choice.

Dave
Forum: Alternative Engines 04-07-2022, 11:18 AM
Replies: 3
Views: 543
Posted By David Paule
Short block price. Dave

Short block price.

Dave
Forum: RV Building Tips/Techniques 04-06-2022, 10:16 AM
Replies: 17
Views: 1,368
Posted By David Paule
Fewer plies of glass makes it weaker but more...

Fewer plies of glass makes it weaker but more flexible. How much strength do you need? It's a gasket.

To some extent, a 45 degree fiber orientation will be more flexible than a 0/90 degree...
Forum: My RV Build Project 04-04-2022, 07:07 PM
Replies: 636
Views: 419,599
Posted By David Paule
I got the top and the bottom side mounting strips...

I got the top and the bottom side mounting strips done, primed and riveted on. Years ago, I bought a set of Mil-Spec fasteners, not knowing that they’d go out of business leaving Skybolt as the main...
Forum: RV General Discussion/News 04-04-2022, 12:21 PM
Replies: 3
Views: 566
Posted By David Paule
Polishing Baffles - Advice Needed

I plan to polish the baffles. Since the pieces are relatively small, would you recommend a small polisher, if so which, or just do it by hand? I think the Cyclo polisher (I have one) is too big for...
Forum: My RV Build Project 04-02-2022, 04:19 PM
Replies: 725
Views: 340,959
Posted By David Paule
You're sure welcome to come down to Longmont and...

You're sure welcome to come down to Longmont and polish my C180....

Dave
Forum: RV-10 04-01-2022, 05:06 PM
Replies: 5
Views: 486
Posted By David Paule
I've used 3M's 2219 on fiberglass with ClickBond...

I've used 3M's 2219 on fiberglass with ClickBond nutplates successfully.

Dave
Forum: RV Building Tips/Techniques 03-30-2022, 12:28 PM
Replies: 24
Views: 3,218
Posted By David Paule
I'm saying the load at the locations where holes...

I'm saying the load at the locations where holes were being made for the stall warning vane or a landing light, is differently loaded than wherever the damage is on the HS. Since the stall warning...
Forum: RV Building Tips/Techniques 03-30-2022, 08:44 AM
Replies: 24
Views: 3,218
Posted By David Paule
C'mon, guys, you're using a different part of the...

C'mon, guys, you're using a different part of the airplane and locations that are less loaded, in your discussion. There's zero relation, as far as concern or loads, to this defect. What's more, the...
Forum: My RV Build Project 03-28-2022, 10:17 AM
Replies: 636
Views: 419,599
Posted By David Paule
The firewall insulation went on after a lot of...

The firewall insulation went on after a lot of trimming and fiddling. At the last minute, I had to trim the perimeter back a little to allow for installing the quarter-turn cowl fastener’s mounting...
Forum: Interiors 03-28-2022, 08:32 AM
Replies: 33
Views: 22,026
Posted By David Paule
Holes in .005 Titanium Foil

More about this... with the firewall insulation now covered with the Ti foil and all the through-holes in it, I've more experience. Remember, I'm using Grade 2. The stronger grades might act...
Forum: Safety 03-27-2022, 03:11 PM
Replies: 9
Views: 943
Posted By David Paule
I lived here since '81 and this year was the...

I lived here since '81 and this year was the first time fires got anywhere near me. And 2013 was the first time my house got flooded. Climate change? Yep, it's happening.

I had thought while safely...
Forum: RV Building Tips/Techniques 03-27-2022, 11:52 AM
Replies: 3
Views: 879
Posted By David Paule
That white melamine-covered material makes...

That white melamine-covered material makes excellent work bench tops. Easy to clean and doesn't hold metal chips. Out here, the big box stores carry it in 49" x 97" pieces (so that cabinet makers can...
Forum: Safety 03-27-2022, 09:14 AM
Replies: 9
Views: 943
Posted By David Paule
Evacuating the Shop

Yesterday, I received an evacuation order due to a new wildfire in the vicinity. I shut everything down and left.

Thinking about it after the all-clear was called for my area, I realized that I'd...
Forum: Painting your RV 03-25-2022, 06:52 PM
Replies: 40
Views: 4,161
Posted By David Paule
Like paint, vinyl's installation steps need to be...

Like paint, vinyl's installation steps need to be followed carefully.

Dave
Forum: Electrical Systems 03-25-2022, 05:52 PM
Replies: 11
Views: 1,162
Posted By David Paule
There is a lot more ambient noise in a cockpit,...

There is a lot more ambient noise in a cockpit, so you may want to allow for a future adjustment.

Dave
Forum: RV Building Tips/Techniques 03-25-2022, 05:51 PM
Replies: 15
Views: 1,811
Posted By David Paule
Contact Van's. Mass balance weights are critical...

Contact Van's. Mass balance weights are critical and you can't mess around with them.

Dave
Forum: Painting your RV 03-25-2022, 11:46 AM
Replies: 40
Views: 4,161
Posted By David Paule
Worst of both worlds, sorry. The vinyl, a good...

Worst of both worlds, sorry.

The vinyl, a good one anyway, has plenty of gloss and is fairly durable for a hangared plane. And when all the installation steps are complete, it's done. As people have...
Forum: Primers 03-25-2022, 09:26 AM
Replies: 27
Views: 14,199
Posted By David Paule
Just to recap my experience, I like EkoPoxy a...

Just to recap my experience, I like EkoPoxy a lot. I ultimately used it for the interior paint, spraying one area at a time. I'd bought a Harbor Freight touch-up gun which is perfect for this. The...
Forum: RV-12/RV-12iS 03-24-2022, 07:13 PM
Replies: 9
Views: 979
Posted By David Paule
I used a boat trailer in the driveway with a...

I used a boat trailer in the driveway with a shelf resting on it. Worked quite well. I'd lay the parts down on the shelf (a 4'x5' piece of plastic I had, plywood would certainly work) and if they...
Forum: RV General Discussion/News 03-24-2022, 06:14 PM
Replies: 21
Views: 2,077
Posted By David Paule
Makes sense to me. Those older airplanes could...

Makes sense to me. Those older airplanes could need things like headset sockets. They are pretty noisy - I did my tailwheel transition in a Cessna 120 well over half a century ago, and remember the...
Forum: RV General Discussion/News 03-24-2022, 11:24 AM
Replies: 16
Views: 2,131
Posted By David Paule
A long time ago a friend, who had an...

A long time ago a friend, who had an exceptionally nice airplane, although not an RV, was approached by a gentleman who said, "I'd like to buy your airplane." Bob replied, "It's not for sale." The...
Forum: Painting your RV 03-23-2022, 12:00 PM
Replies: 40
Views: 4,161
Posted By David Paule
I'm in the same position as Bob in post #1....

I'm in the same position as Bob in post #1. Recommendations welcome.

I thought long and hard about vinyl wrap and decided that I wasn't comfortable with wrapping the cowl of my RV-3B project, or...
Forum: RV Building Tips/Techniques 03-22-2022, 12:12 PM
Replies: 27
Views: 2,396
Posted By David Paule
With the bolt properly torqued, the joint is...

With the bolt properly torqued, the joint is rigid. This is all it needs.

One of the Five Rules of Engineering is "Get it good enough and move on." This is good enough.

There are any number of...
Forum: RV-14 03-22-2022, 08:23 AM
Replies: 22
Views: 7,278
Posted By David Paule
Here's a tip - built the plane stock, with one of...

Here's a tip - built the plane stock, with one of the recommended engines.

Dave
Forum: Traditional Aircraft Engines 03-19-2022, 08:44 AM
Replies: 108
Sticky: Baffle Mod
Views: 116,474
Posted By David Paule
Ditto on this being non-structural. But rather...

Ditto on this being non-structural.

But rather than a flange on the inboard side, I'd eliminate it. You will still have upper, lower and outboard flanges. Here's the general concept, showing a...
Forum: RV Building Tips/Techniques 03-18-2022, 09:39 AM
Replies: 22
Views: 2,688
Posted By David Paule
You can make very complicated tables. It's not...

You can make very complicated tables. It's not necessary - what is necessary are flat, stiff tables with replaceable tops, and plenty of surface area. The more tables the better.

This shows how I...
Forum: RV Building Tips/Techniques 03-18-2022, 08:01 AM
Replies: 12
Views: 1,078
Posted By David Paule
Too much is almost enough. Dave

Too much is almost enough.

Dave
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