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Search: Posts Made By: David Paule
Forum: RV-10 Yesterday, 10:14 AM
Replies: 5
Views: 308
Posted By David Paule
Well, that depends on where you are. Where the OP...

Well, that depends on where you are. Where the OP is, he probably will.

Dave
Forum: RV-14 06-18-2021, 04:43 PM
Replies: 9
Views: 3,529
Posted By David Paule
There's a parts list in Section 4. It includes...

There's a parts list in Section 4. It includes material and thickness, name, whether it's raw material or a manufactured part, the sub-kit it's associated with, the plans section (although not the...
Forum: RV Building Tips/Techniques 06-17-2021, 01:09 PM
Replies: 4
Views: 198
Posted By David Paule
My experience with Proto tools has been...

My experience with Proto tools has been excellent. I regard them highly.

Dave
Forum: Tools 06-17-2021, 09:52 AM
Replies: 6
Views: 599
Posted By David Paule
Very nice write-up in your log, thanks! Dave

Very nice write-up in your log, thanks!

Dave
Forum: RV-8/8A 06-15-2021, 01:53 PM
Replies: 7
Views: 873
Posted By David Paule
Perhaps a tin can or plastic bottle can be found...

Perhaps a tin can or plastic bottle can be found that might work. The supermarket is your friend.

Or just buy a tube the right diameter, cut it to length, and find a cap for the closed end.


With a...
Forum: RV-14 06-14-2021, 08:54 AM
Replies: 12
Views: 732
Posted By David Paule
In CA, the maximum width allowed on roads is 102...

In CA, the maximum width allowed on roads is 102 inches. So make the door width 103 inches if you have room.

Dave
Forum: RV Building Tips/Techniques 06-12-2021, 05:01 PM
Replies: 12
Views: 465
Posted By David Paule
I use these tools in this order...

I use these tools in this order -

Bandsaw,
Sanding disk,
Vixen file if needed,
Mill files if needed.

To do these things -

Cut,
Forum: RV Building Tips/Techniques 06-12-2021, 08:15 AM
Replies: 9
Views: 573
Posted By David Paule
Simon, that's a pretty nice job of wiring. Thanks...

Simon, that's a pretty nice job of wiring. Thanks for posting it.

Dave
Forum: RV-3 06-11-2021, 10:11 AM
Replies: 7
Views: 513
Posted By David Paule
A friend with an RV-3 told me that level, with a...

A friend with an RV-3 told me that level, with a 72" prop, he had 5" clearance.

Dave
Forum: Midwest 06-11-2021, 10:09 AM
Replies: 1
Views: 123
Posted By David Paule
PM Sent

With a good recommendation and other useful information.

Dave
Forum: RV General Discussion/News 06-10-2021, 09:46 AM
Replies: 41
Views: 3,009
Posted By David Paule
I have an older unbuilt FAB kit for my RV-3B...

I have an older unbuilt FAB kit for my RV-3B (which is taking me like forever to complete). The O-320 uses an MA-4SPA carburetor.

Van's Support sent me this list and suggested that I order the...
Forum: RV Building Tips/Techniques 06-08-2021, 05:35 PM
Replies: 10
Views: 795
Posted By David Paule
On the RV-3B (and I think on the RV-4), the top...

On the RV-3B (and I think on the RV-4), the top cover removes between the firewall and the panel. Lots of screws but generous access.

Dave
Forum: RV Building Tips/Techniques 06-08-2021, 07:48 AM
Replies: 10
Views: 795
Posted By David Paule
An RV-3B instead of an RV-4, but I also made an...

An RV-3B instead of an RV-4, but I also made an avionics panel that goes forward of the panel. It contains the remote box for the com radio. The transponder is hung from a small bracket just aft of...
Forum: RV-14 06-07-2021, 05:37 PM
Replies: 18
Views: 1,499
Posted By David Paule
Although I'm building an RV-3B instead of an...

Although I'm building an RV-3B instead of an RV-14a, this might help with ordering - I ordered all the airframe kits at once and have never regretted it. As soon as I could, I ordered the finish kit,...
Forum: RV-4 06-07-2021, 01:07 PM
Replies: 8
Views: 409
Posted By David Paule
Looking at the RV-8 pre-punched Chapter 4, the...

Looking at the RV-8 pre-punched Chapter 4, the parts list, the RV-8 aileron skins are .020.

Dave
Forum: RV-4 06-07-2021, 12:32 PM
Replies: 37
Views: 1,987
Posted By David Paule
I looked at a diameter of 1.4" near the top of...

I looked at a diameter of 1.4" near the top of the RV-4 long legs and tried both 1.5" x 1/8" and 2" x 1/8" aluminum.

The 1.5" aluminum combined with the steel leg gives about 1.7 times the vertical...
Forum: RV-4 06-07-2021, 10:21 AM
Replies: 37
Views: 1,987
Posted By David Paule
Optimization?

Personally, I think that aluminum is just fine. What we don't know is what is the desired ratio of fore-aft stiffness to vertical stiffness. So this is sort of a trial and error proposition.

Would...
Forum: RV-7/7A 06-07-2021, 10:13 AM
Replies: 5
Views: 645
Posted By David Paule
Rob, we're real glad to have you back among us!...

Rob, we're real glad to have you back among us! Keep us posted.

Dave
Forum: RV-8/8A 06-06-2021, 07:15 PM
Replies: 9
Views: 533
Posted By David Paule
Some time ago, I got a ride in the rear seat of...

Some time ago, I got a ride in the rear seat of an RV-4. The owner had an aneurysm and explained that there was a very small chance that it would burst and I'd be on my own. The plane had stick and...
Forum: RV-4 06-06-2021, 09:22 AM
Replies: 37
Views: 1,987
Posted By David Paule
Actual numbers

I just ran the calculations as they might apply to my RV-3B. I assumed a point a little below the gear leg's top end and assumed that a 1/8" x 2" strip of aluminum would fit.

A different RV would...
Forum: RV-4 06-05-2021, 06:08 PM
Replies: 37
Views: 1,987
Posted By David Paule
It's not a truss, it's a composite beam section....

It's not a truss, it's a composite beam section. Put the holes at the neutral axis of the combined section, accounting for the modulus differences.

Dave
Forum: RV-4 06-05-2021, 12:51 PM
Replies: 37
Views: 1,987
Posted By David Paule
John has the right idea, I think, about the...

John has the right idea, I think, about the shape. I prefer a simple rectangle.

If holes were tried, I'd put them adjacent to the gear leg rather than in the middle. Maybe half-round cut-outs. But...
Forum: RV Building Tips/Techniques 06-05-2021, 12:46 PM
Replies: 26
Views: 1,811
Posted By David Paule
I used 1/16" Fiberfrax and some .020 grade 2...

I used 1/16" Fiberfrax and some .020 grade 2 titanium over that for a belly overlay since on my RV-3B, the floor is the belly skin. Here it is at a very early stage.

12282

Dave
Forum: RV-4 06-04-2021, 07:39 PM
Replies: 37
Views: 1,987
Posted By David Paule
It probably won't be all that effective without...

It probably won't be all that effective without making the gear leg deeper (top to bottom). And I'd recommend making the fore-aft direction a different stiffness than the up-down one.

The basic...
Forum: Safety 06-04-2021, 04:34 PM
Replies: 57
Views: 5,102
Posted By David Paule
It would be interesting to do a whole series of...

It would be interesting to do a whole series of 360 degree turns at various bank angles and flap settings and speeds, to see what the lowest altitude loss is.

Dave
Forum: RV-12/RV-12iS 06-04-2021, 07:52 AM
Replies: 3
Views: 599
Posted By David Paule
Get proficient in mountain flying before you head...

Get proficient in mountain flying before you head up there. You'll need that knowledge and skill to help maximize the airplane's capabilities.

Dave
Forum: RV-4 06-04-2021, 07:48 AM
Replies: 37
Views: 1,987
Posted By David Paule
My working hypothesis was that we needed to...

My working hypothesis was that we needed to separate the fore-aft section moment of inertia from the vertical.

I do not think that dampening is the goal. Dampening requires motion to work since...
Forum: Interiors 06-03-2021, 06:34 PM
Replies: 5
Views: 503
Posted By David Paule
3M vinyl comes in a few different clear styles,...

3M vinyl comes in a few different clear styles, FYI. These are distinct products, rather than the clear overlay of the 2080 kind.

Dave
Forum: RV-4 06-03-2021, 04:36 PM
Replies: 37
Views: 1,987
Posted By David Paule
It's a whole lot easier and probably more durable...

It's a whole lot easier and probably more durable and effective to make thick aluminum strips that fit inside the fairings, and attach them to the gear legs with Adel clamps. An RV-6 owner locally...
Forum: RV-3 06-03-2021, 04:30 PM
Replies: 2
Views: 425
Posted By David Paule
It is indeed. I installed doubled bulkheads back...

It is indeed. I installed doubled bulkheads back there in 2016, after learning about this. Here the fuselage is shown upside down still in the jig.

https://i.imgur.com/nIDo8wf.jpg

It wasn't easy. I...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-03-2021, 10:11 AM
Replies: 9
Views: 935
Posted By David Paule
Aden, Suit yourself, my friend. Each builder or...

Aden, Suit yourself, my friend. Each builder or owner gets to decide what their own needs are. The sweet thing about a suitably-equipped RV-3B is that the owner/builder/pilot gets to do acro one day...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-02-2021, 11:27 AM
Replies: 9
Views: 935
Posted By David Paule
On the B wings, the spar is drilled for the...

On the B wings, the spar is drilled for the aileron bellcrank fittings and a standard servo mount fits just fine - for the roll servo. On the pitch servo, yes, a couple of pieces need to be built but...
Forum: RV Building Tips/Techniques 06-01-2021, 09:24 AM
Replies: 17
Views: 2,015
Posted By David Paule
Nice idea and definitely worth posting. But it's...

Nice idea and definitely worth posting. But it's too bad that you didn't round the corners while you were at it. It would have been easy then with the template being wood. Now it'll take a...
Forum: Glass Cockpit 06-01-2021, 09:19 AM
Replies: 18
Views: 859
Posted By David Paule
Finally, here's the completed hub on the...

Finally, here's the completed hub on the stand-off:

12130

Sorry, I don't know how to embed multiple VAF-hosted photos in a single posting.

Dave
Forum: Glass Cockpit 06-01-2021, 09:17 AM
Replies: 18
Views: 859
Posted By David Paule
Here's Steve's stand-off: 12129 Dave

Here's Steve's stand-off:

12129

Dave
Forum: Glass Cockpit 06-01-2021, 09:13 AM
Replies: 18
Views: 859
Posted By David Paule
az_gila, that is, Gil Alexander, had a hub kit...

az_gila, that is, Gil Alexander, had a hub kit that he offered. Don't know if he still does. I couldn't find it using the VAF search feature.

As I recollect, it was a bare board to which you...
Forum: RV-3 05-31-2021, 11:45 AM
Replies: 4
Views: 293
Posted By David Paule
Paul Dye got an Oregon Aero seat and reported...

Paul Dye got an Oregon Aero seat and reported that he liked it. I think his uses an electric flap, so if you have manual flaps that could make a fitment difference.

Dave
Forum: RV-8/8A 05-30-2021, 05:31 PM
Replies: 9
Views: 407
Posted By David Paule
Better to put it inboard for flutter reasons. It...

Better to put it inboard for flutter reasons. It might not matter but it's good practice.

Dave
Forum: RV-10 05-30-2021, 05:27 PM
Replies: 62
Views: 11,152
Posted By David Paule
And the heat-treatment of the aluminum will be...

And the heat-treatment of the aluminum will be destroyed, too. A slightly bigger reason.

Dave
Forum: RV Building Tips/Techniques 05-30-2021, 02:21 PM
Replies: 16
Views: 961
Posted By David Paule
What Larry said about the lines. You'd be...

What Larry said about the lines. You'd be surprised how helpful they are.

Dave
Forum: Glass Cockpit 05-30-2021, 11:14 AM
Replies: 18
Views: 859
Posted By David Paule
I hope so - I'm planning on that, too. I'm using...

I hope so - I'm planning on that, too. I'm using AzGila's excellent hub kit, which includes the servo connectors.

12083

Dave
Forum: RV Ongoing Maintenance Issues 05-22-2021, 05:09 PM
Replies: 9
Views: 840
Posted By David Paule
I'm not an RV-9 builder but I do have the thumb...

I'm not an RV-9 builder but I do have the thumb drive plans. Like other RVs, the Z-shaped brackets on the back of the fuel tank should have locking plate nuts on them. These do not need Loctite since...
Forum: RV Building Tips/Techniques 05-22-2021, 02:48 PM
Replies: 18
Views: 767
Posted By David Paule
Simplest way is to screw some lag bolts into the...

Simplest way is to screw some lag bolts into the bottoms of the legs and call them feet. Drill holes for them first, leaving wood for the threads.

Dave
Forum: Traditional Aircraft Engines 05-22-2021, 01:01 PM
Replies: 44
Views: 3,420
Posted By David Paule
I'm at slightly higher elevation than Jerome and...

I'm at slightly higher elevation than Jerome and routinely lean my non-RV before take off.

Dave
Forum: RV General Discussion/News 05-21-2021, 09:29 AM
Replies: 68
Views: 7,697
Posted By David Paule
Visited some friends in another state, airplane...

Visited some friends in another state, airplane people. I was working through the preflight and the guy was talking away. It was a little distracting. Got near the end and he'd opened a cowl access...
Forum: Tools 05-17-2021, 01:38 PM
Replies: 12
Views: 693
Posted By David Paule
Oh yeah. Dave

Oh yeah.

Dave
Forum: RV General Discussion/News 05-17-2021, 01:35 PM
Replies: 8
Views: 901
Posted By David Paule
MS20603

Looks like the flush version of an explosive rivet that I remember.

The spec was cancelled in '77. I was in the military as a helicopter mechanic then while it was active, and we were never taught...
Forum: RV General Discussion/News 05-17-2021, 11:46 AM
Replies: 22
Views: 2,528
Posted By David Paule
As an old stress/dynamics engineer, I've got to...

As an old stress/dynamics engineer, I've got to say that Bobby's post is spot on and well-written.

Dave
Forum: RV Ongoing Maintenance Issues 05-15-2021, 06:13 PM
Replies: 8
Views: 521
Posted By David Paule
When you install the new pin, remember that you...

When you install the new pin, remember that you need very little torque on the nut.

Dave
Forum: RV-12/RV-12iS 05-14-2021, 07:31 PM
Replies: 11
Views: 1,552
Posted By David Paule
Click Bond Store

These folks have a store (https://www.theflightshop.com/products) that has a good selection. I've never bought from them, though, at least not yet.

Dave
Forum: Photography 05-14-2021, 04:19 PM
Replies: 3
Views: 644
Posted By David Paule
Is that the engine to be specified for the...

Is that the engine to be specified for the RV-15?

Dave
Forum: My RV Build Project 05-13-2021, 05:35 PM
Replies: 560
Views: 342,115
Posted By David Paule
Time for the side panels. Looking through the...

Time for the side panels. Looking through the various RV-3 cockpit photos I have, it looks like there are many ways to do this.

This is what the plans suggest. Here, the cover is not in...
Forum: Electrical Systems 05-13-2021, 03:00 PM
Replies: 12
Views: 958
Posted By David Paule
Why do you want to do this? Dave

Why do you want to do this?

Dave
Forum: Propellers 05-10-2021, 02:38 PM
Replies: 41
Views: 2,758
Posted By David Paule
Is this due to air in the system? If so, is...

Is this due to air in the system?

If so, is there a procedure to purge the air that doesn't involve running the engine?

And is it a general behavior for new constant speed...
Forum: Safety 05-09-2021, 06:15 PM
Replies: 18
Views: 4,455
Posted By David Paule
For what it's worth, I'm a now-retired aerospace...

For what it's worth, I'm a now-retired aerospace structural analyst. You guys call that a "stress analyst," but stress was only part of the job. Stiffness and deflections were at least as much part...
Forum: Tools 05-08-2021, 07:51 PM
Replies: 20
Views: 2,258
Posted By David Paule
A fast way to deburr skin holes, or holes an any...

A fast way to deburr skin holes, or holes an any flat part, is to lay a fine file flat on the surface and slide it across the row of holes, once on each side. If necessary, a reamer will remove any...
Forum: Safety 05-08-2021, 11:40 AM
Replies: 18
Views: 4,455
Posted By David Paule
You can click on the photos and get a larger...

You can click on the photos and get a larger photo.

Dave
Forum: RV Building Tips/Techniques 05-08-2021, 11:38 AM
Replies: 38
Views: 2,439
Posted By David Paule
If you use the compressor for spraying paint,...

If you use the compressor for spraying paint, that'll govern the compressor requirements. A number of people use a rattle-can primer and even rattlecan paint for the interior. Your plane has a...
Forum: RV Building Tips/Techniques 05-07-2021, 04:54 PM
Replies: 38
Views: 2,439
Posted By David Paule
I like these

These are decent work benches. (https://vansairforce.net/community/showthread.php?t=160679)

Dave
Forum: RV Building Tips/Techniques 05-07-2021, 03:05 PM
Replies: 15
Views: 1,048
Posted By David Paule
It looks like the bolt is loaded in bending for...

It looks like the bolt is loaded in bending for this application. That means that the bolt has to carry shear, bending and tension from the preload, all at the same time.

Dave
Forum: RV-10 05-07-2021, 10:52 AM
Replies: 20
Views: 1,848
Posted By David Paule
I've never used the EkoPrime but I use the...

I've never used the EkoPrime but I use the EkoPoxy. EkoPoxy is quite durable and sprays easily. I like it.

I use it in areas that get wear. But the airframe generally has been primed with SEM or...
Forum: Primers 05-07-2021, 07:45 AM
Replies: 7
Views: 703
Posted By David Paule
My own impression of the Zinc Phosphate primer is...

My own impression of the Zinc Phosphate primer is that it did not spray nearly as well as the SEM primer.

Dave
Forum: RV-9/9A 05-06-2021, 12:18 PM
Replies: 11
Views: 1,485
Posted By David Paule
I keep rivets in empty plastic water bottles....

I keep rivets in empty plastic water bottles. When I need some I use a plastic tray from some microwave stuff to hole those few. It drastically cut down the loss rate.

Dave
Forum: Safety 05-04-2021, 10:03 AM
Replies: 27
Views: 2,784
Posted By David Paule
Thanks - that's totally helpful. Dave

Thanks - that's totally helpful.

Dave
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