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Search: Posts Made By: David Paule
Forum: RV General Discussion/News Yesterday, 01:49 PM
Replies: 10
Views: 421
Posted By David Paule
Would you have room to store other parts of the...

Would you have room to store other parts of the plane while you're working on something? Or would you make a suitable opening and then build the plane, knowing that your new walk-out door will find...
Forum: RV Building Tips/Techniques 10-24-2020, 11:28 AM
Replies: 12
Views: 396
Posted By David Paule
West Systems's G/flex is a good one. And as Larry...

West Systems's G/flex is a good one. And as Larry suggested, there are several others.

Dave
Forum: Propellers 10-23-2020, 10:06 AM
Replies: 12
Views: 1,532
Posted By David Paule
There's a comment from Van himself on the Front...

There's a comment from Van himself on the Front Page today, Friday October 23.

It's pretty interesting....

Dave
Forum: My RV Build Project 10-21-2020, 07:25 PM
Replies: 513
Views: 292,340
Posted By David Paule
One thing that I needed to do was finalize the...

One thing that I needed to do was finalize the conceptual design for the hold-open link. Right now that’s planned to be a bar, pivoted on the aft fairing frame cross-member 5” radius from the canopy...
Forum: RV Ongoing Maintenance Issues 10-21-2020, 09:03 AM
Replies: 19
Views: 941
Posted By David Paule
You might try putting an accumulator bottle in...

You might try putting an accumulator bottle in the static system. I don't have much of a feel for the size but I'd start with something smallish. Doubt if you'd need to go bigger than a...
Forum: RV-3 10-17-2020, 05:02 PM
Replies: 25
Views: 909
Posted By David Paule
Would you need a spring if you used a push-pull...

Would you need a spring if you used a push-pull cable?

The spring appears to be used so that a tension-only cable can be used.

Also, Tony's suggestion, of the manual cable driven by the servo, is...
Forum: RV Ongoing Maintenance Issues 10-17-2020, 11:41 AM
Replies: 5
Views: 564
Posted By David Paule
You might try getting some Type A tank sealant...

You might try getting some Type A tank sealant from skygeek.com or another vendor. It's the consistence of honey. Then topcoat the existing sealant on the seams and rivets per these pictures.

Dave
Forum: RV Building Tips/Techniques 10-17-2020, 09:37 AM
Replies: 4
Views: 649
Posted By David Paule
Make your own gauge like I did: I used .040...

Make your own gauge like I did:

I used .040 aluminum from and drilled a 1/8" hole in it. It's convenient to put a small notch in the end of the gauge so that you can surround the rivet head, but not...
Forum: RV-3 10-16-2020, 11:51 AM
Replies: 25
Views: 909
Posted By David Paule
Ben, welcome to VAF! Sorry, but I don't know...

Ben, welcome to VAF!

Sorry, but I don't know anything about electric trim on the -3B. I'm using manual myself. My only suggestion is to get it as forward as you can manage it.

Good luck with the...
Forum: RV-10 10-15-2020, 07:28 PM
Replies: 39
Views: 9,899
Posted By David Paule
On my RV-3B, my feet are on the belly skin. I...

On my RV-3B, my feet are on the belly skin. I used 1/16" Fiberfrax on the outside belly, with a .020 titanium overlay. You can read about it on my VAF blog,...
Forum: Safety 10-15-2020, 07:12 PM
Replies: 23
Views: 2,274
Posted By David Paule
Learn the general shape of the mountain wave...

Learn the general shape of the mountain wave effects. You can often see the lenticular clouds, not always, and sometimes you can see the rotor clouds. But the rotor is usually the one that'll give...
Forum: Electrical Systems 10-15-2020, 05:02 PM
Replies: 29
Views: 1,983
Posted By David Paule
Some excellent advice here and equally excellent...

Some excellent advice here and equally excellent references.

Most things can be eaten one bite at a time. Electrical systems are the same way. Perhaps start with a suitable power format from...
Forum: RV Ongoing Maintenance Issues 10-12-2020, 07:31 PM
Replies: 4
Views: 552
Posted By David Paule
Perhaps there isn't enough clearance around the...

Perhaps there isn't enough clearance around the prop holes.

Perhaps you need to have the engine and prop dynamically balanced.

Or maybe the spinner bulkhead is not right somehow.

Should there be a...
Forum: Fiberglass 10-12-2020, 01:32 PM
Replies: 121
Views: 168,881
Posted By David Paule
It's handy to include a leak valve, pressure...

It's handy to include a leak valve, pressure gauge and a sump. Never know what debris might come back.

Interesting, the discussion about the pressures. Here in Colorado I can't get much about 20"...
Forum: RV-4 10-11-2020, 02:18 PM
Replies: 1
Views: 267
Posted By David Paule
Van's sells the plans on a thumb drive for $10,...

Van's sells the plans on a thumb drive for $10, if the timing would work.

Dave
Forum: RV General Discussion/News 10-09-2020, 01:18 PM
Replies: 19
Views: 1,551
Posted By David Paule
I've got a thread here on VAF either in the Tools...

I've got a thread here on VAF either in the Tools or the Tips section that includes plans for a bench that I designed. You can search for it. It's slightly easier than the EAA one. I've made...
Forum: Traditional Aircraft Engines 10-09-2020, 01:10 PM
Replies: 20
Views: 1,617
Posted By David Paule
There's a poll here on VAF that compared failure...

There's a poll here on VAF that compared failure rated of different brands alternator. You can do a search for it. Plane Power was the worst. The best was B&C.

Dave
Forum: Reviews 10-08-2020, 07:20 PM
Replies: 8
Views: 788
Posted By David Paule
Sometimes, with some card companies, you can call...

Sometimes, with some card companies, you can call them and ask them to temporarily raise the limit. I've never been turned down.

Dave
Forum: RV General Discussion/News 10-08-2020, 01:40 PM
Replies: 1,653
Views: 411,998
Posted By David Paule
Is there a feature to keep the towbar from coming...

Is there a feature to keep the towbar from coming off in turbulence?

Dave
Forum: RV General Discussion/News 10-08-2020, 08:58 AM
Replies: 10
Views: 775
Posted By David Paule
If it should be the elevator tab, you can buy a...

If it should be the elevator tab, you can buy a kit for just that from Van's.

Dave
Forum: RV-3 10-07-2020, 07:02 PM
Replies: 10
Views: 635
Posted By David Paule
For any cover, follow the washing instructions...

For any cover, follow the washing instructions carefully. If you let it shrink, it won't fit so well. Don't ask how I found out....

Dave
Forum: RV General Discussion/News 10-07-2020, 07:01 PM
Replies: 33
Views: 3,208
Posted By David Paule
If the hangar has electricity, you may need...

If the hangar has electricity, you may need lights.

Dave
Forum: Interiors 10-02-2020, 02:10 PM
Replies: 16
Views: 2,208
Posted By David Paule
.020 titanium is lighter than .016 stainless by...

.020 titanium is lighter than .016 stainless by around 99 grams, or just over three ounces, a square foot. Plenty durable. It's what I'll probably do.

Dave
Forum: RV General Discussion/News 09-30-2020, 11:20 AM
Replies: 4
Views: 601
Posted By David Paule
It was for my RV-3B landing gear socket. It would...

It was for my RV-3B landing gear socket. It would have been a major interference fit. I used a hone and honed it out, very carefully. Eventually got so that both legs fit with zero play and snug...
Forum: RV Building Tips/Techniques 09-29-2020, 04:44 PM
Replies: 30
Views: 2,323
Posted By David Paule
You could call Van's for a definitive...

You could call Van's for a definitive answer....

Dave
Forum: RV Building Tips/Techniques 09-29-2020, 03:25 PM
Replies: 30
Views: 2,323
Posted By David Paule
I did very little work on the shuttle itself,...

I did very little work on the shuttle itself, just one of the struts that held the external tank on. But I saw the last one being built and it was mostly aluminum, as I recollect.

The payloads were...
Forum: RV Building Tips/Techniques 09-29-2020, 12:41 PM
Replies: 30
Views: 2,323
Posted By David Paule
I went way back and looked up my copy of...

I went way back and looked up my copy of MSFC-STD-486B, dated 11/92. This was one of the documents we used for analyzing payloads for the space shuttle. It gives torque values for different...
Forum: RV-4 09-29-2020, 08:47 AM
Replies: 53
Views: 9,022
Posted By David Paule
Unfortunately, tension strengths of driven rivets...

Unfortunately, tension strengths of driven rivets are usually less and occasionally more than the basic stress x area equation would suggest. This is due to the sheet thickness and head type having a...
Forum: RV-4 09-28-2020, 02:55 PM
Replies: 53
Views: 9,022
Posted By David Paule
Of course. But how will this inform you? Dave

Of course. But how will this inform you?

Dave
Forum: RV-4 09-28-2020, 01:20 PM
Replies: 53
Views: 9,022
Posted By David Paule
How will flying it, assuming it hangs together...

How will flying it, assuming it hangs together though that experience, demonstrate anything about it?

Unless you test it to a known g level above limit load, you haven't proved anything.

Seems to...
Forum: RV General Discussion/News 09-28-2020, 01:12 PM
Replies: 14
Views: 2,051
Posted By David Paule
I have a Contigo bottle that works pretty well....

I have a Contigo bottle that works pretty well. While it doesn't leak, the drinking spout can be locked.

They make a number of designs: http://https://www.gocontigo.com/water-bottles

Dave
Forum: RV-3 09-28-2020, 01:05 PM
Replies: 4
Views: 504
Posted By David Paule
I believe that the RV-3 and RV-4 tends to run...

I believe that the RV-3 and RV-4 tends to run relatively cool, or perhaps that's just the oil temperature. There are probably threads here that will tell you. Seems to me that the cheek cowl exits...
Forum: RV General Discussion/News 09-28-2020, 09:29 AM
Replies: 21
Views: 2,038
Posted By David Paule
Thanks, everyone, I've been looking for a small...

Thanks, everyone, I've been looking for a small flashlight too and you've identified several candidates for me.

Dave
Forum: RV General Discussion/News 09-26-2020, 05:56 PM
Replies: 13
Views: 1,219
Posted By David Paule
One thing about an RV-7 is that there's a broader...

One thing about an RV-7 is that there's a broader base of builders out there, so if you do have a question, you can probably get either an answer quicker or a wider range of potential ways to do the...
Forum: My RV Build Project 09-26-2020, 05:50 PM
Replies: 513
Views: 292,340
Posted By David Paule
Although the canopy still isnít on yet, it was...

Although the canopy still isnít on yet, it was time to get an idea of what sort of geometry was available for the canopy frame cross-stiffeners (the ones front and back that go side to side). These...
Forum: RV Ongoing Maintenance Issues 09-26-2020, 02:51 PM
Replies: 9
Views: 657
Posted By David Paule
In case any one is interested (very slightly...

In case any one is interested (very slightly off-topic), here's a site (https://www.stiweb.com/Vibration_Calculator_s/104.htm) that has a calculator that converts ips to gs.

Dave
Forum: RV-12/RV-12iS 09-26-2020, 12:32 PM
Replies: 20
Views: 2,508
Posted By David Paule
Claude, I give you credit for asking rather than...

Claude, I give you credit for asking rather than attempting this.

But you've had lots better ideas in your life than this. The other people who responded have it right - don't do it.

Dave
Forum: Safety 09-26-2020, 09:44 AM
Replies: 30
Views: 4,960
Posted By David Paule
Your physics aren't quite correct. The need for...

Your physics aren't quite correct.

The need for control power is based on the moment (torque) that you're trying to control. If the moment needed to raise the tail is greater than the moment due to...
Forum: Reviews 09-25-2020, 04:48 PM
Replies: 9
Views: 1,038
Posted By David Paule
They are a very good vendor. Never had a problem...

They are a very good vendor. Never had a problem with their goods, and they are otherwise excellent.

I have a couple of ACAT tools and they have been quite good. The small 90 degree drill does use...
Forum: Tools 09-24-2020, 05:09 PM
Replies: 14
Views: 1,199
Posted By David Paule
There are any number of threads on VAF about...

There are any number of threads on VAF about which tools to get. As for sales, quite often there are used tools available in the VAF classifieds. It should be no more than a matter of reading a few...
Forum: Alternative Engines 09-24-2020, 05:01 PM
Replies: 20
Views: 2,874
Posted By David Paule
I believe that the Lycoming IO-540 will work just...

I believe that the Lycoming IO-540 will work just fine, cost less and burn less fuel. Plus you can get an FWF kit from Van's.

Dave
Forum: Tools 09-21-2020, 02:53 PM
Replies: 31
Views: 2,892
Posted By David Paule
The factory screws are not particularly strong....

The factory screws are not particularly strong. They are made from relatively soft steel. Replace them with screws made of 125 ksi to 160 ksi steel and that problem goes away.

Dave
Forum: RV General Discussion/News 09-17-2020, 07:30 PM
Replies: 1,653
Views: 411,998
Posted By David Paule
Very simple, thanks!. How far does it extend aft...

Very simple, thanks!. How far does it extend aft of the panel?

Mine is integral and extends aft 3" from the panel. The sunshade is the gray part. The canopy is soon to be...
Forum: RV General Discussion/News 09-17-2020, 06:28 PM
Replies: 1,653
Views: 411,998
Posted By David Paule
Steve, I'll be using an iPad Mini on my RV-3B...

Steve, I'll be using an iPad Mini on my RV-3B when I get that far. My plan is to have a flush mount that lets me use the iPad either in vertical or horizontal format, with the ability to rotate the...
Forum: Texas (North) 09-17-2020, 06:21 PM
Replies: 8
Views: 954
Posted By David Paule
My hangar, one of a condominium hangar project...

My hangar, one of a condominium hangar project with six in this building, was made long before I arrived at the city-owned airport. I own the building but have a 10 year ground lease. I pay county...
Forum: RV General Discussion/News 09-17-2020, 08:32 AM
Replies: 20
Views: 1,877
Posted By David Paule
They can also introduce trim changes that the...

They can also introduce trim changes that the owner can "correct" by trim tabs. That's part of the speed loss.

Dave
Forum: Interiors 09-16-2020, 05:37 PM
Replies: 6
Views: 637
Posted By David Paule
Harness Fastenings - Cam Lock vs. Latch

What are the pros and cons of each?

The main con for the latch type, as far as I know, is that it might snag on something and open inadvertently. The main con for the cam lock type, as far as I...
Forum: RV-14 09-16-2020, 02:19 PM
Replies: 5
Views: 818
Posted By David Paule
Also, if a particular item will hinder skin...

Also, if a particular item will hinder skin riveting, wait till the skin is on before installing it.

Dave
Forum: RV-4 09-16-2020, 10:20 AM
Replies: 3
Views: 659
Posted By David Paule
On my RV-3B, I put some .020 titanium outside a...

On my RV-3B, I put some .020 titanium outside a piece of 1/16" Fiberfrax for the belly. It's documented in my VAF blog, (https://vansairforce.com/community/showthread.php?t=85658) starting in post...
Forum: RV-10 09-15-2020, 09:48 AM
Replies: 3
Views: 639
Posted By David Paule
You can ask Van's to withhold some things from...

You can ask Van's to withhold some things from your FWF kit. It's not an all or nothing deal. Especially since you want the cowl, a lot of other things can come along with the same freight.

Dave
Forum: Safety 09-13-2020, 06:53 PM
Replies: 30
Views: 4,960
Posted By David Paule
And since it briefly popped up in the thread......

And since it briefly popped up in the thread... left crosswinds are something to be careful of. We already have right rudder in for the P-factor, and that leaves less for the crosswind.

I've thought...
Forum: RV-14 09-13-2020, 08:50 AM
Replies: 17
Views: 1,616
Posted By David Paule
Besides the foam/glass idea, you could use...

Besides the foam/glass idea, you could use aircraft covering fabric or Mylar drafting film. On my C180's aileron spar holes, I used the Mylar drafting film (I have a bunch of it on hand) and attached...
Forum: Safety 09-12-2020, 07:51 PM
Replies: 14
Views: 2,668
Posted By David Paule
Of course, if you haven't already had proper...

Of course, if you haven't already had proper aerobatic training, you probably should get that before doing it in your own airplane.

Dave
Forum: RV General Discussion/News 09-11-2020, 12:10 PM
Replies: 25
Views: 1,716
Posted By David Paule
Since visibility of one of the main reasons we go...

Since visibility of one of the main reasons we go flying, why on Earth would anyone want to intentionally degrade it?

Dave
Forum: My RV Build Project 09-09-2020, 07:48 PM
Replies: 513
Views: 292,340
Posted By David Paule
Thanks, Jim, I appreciate the pics. Having just...

Thanks, Jim, I appreciate the pics.

Having just put the pin in today, fighting it the whole length, I might go for the split pin arrangement. Have to say the whole length one was a pain. Confirms my...
Forum: RV-12/RV-12iS 09-09-2020, 05:00 PM
Replies: 3
Views: 601
Posted By David Paule
The same page as the POH is on also has the...

The same page as the POH is on also has the maintenance manual and others.

Dave
Forum: My RV Build Project 09-09-2020, 08:40 AM
Replies: 513
Views: 292,340
Posted By David Paule
Canopy Fairing Has Its Hinge

Life has caught up with me again. Here and there, I worked a few moments at a time. Sometimes I was delayed for parts, but most of the time it just happened.

Well, enough whining. Hereís whatís been...
Forum: RV-12/RV-12iS 09-08-2020, 01:31 PM
Replies: 16
Views: 2,473
Posted By David Paule
Unless you take a loan out for it. Dave

Unless you take a loan out for it.

Dave
Forum: RV-12/RV-12iS 09-07-2020, 07:48 PM
Replies: 16
Views: 2,473
Posted By David Paule
For your questions, 1. Yes, you can probably...

For your questions,

1. Yes, you can probably sell kit sections if you elect not to finish the plane. You might not get what you have in them, though, it might take some time, and you'd have to...
Forum: RV General Discussion/News 09-07-2020, 01:54 PM
Replies: 14
Views: 1,193
Posted By David Paule
And just imagine all the new failure modes this...

And just imagine all the new failure modes this will introduce. You've got to mitigate them or risk having it go dark just when you're about to flare or about to turn into the ramp to your...
Forum: RV General Discussion/News 09-06-2020, 05:16 PM
Replies: 31
Views: 4,806
Posted By David Paule
Much like Lars.... the smoke is so heavy I'm...

Much like Lars.... the smoke is so heavy I'm marinating the project in smoke.

I'd like to spray some paint, and need a bit more humidity than the 14% we currently have, plus maybe a little less ash....
Forum: RV General Discussion/News 09-05-2020, 01:52 PM
Replies: 1,653
Views: 411,998
Posted By David Paule
Vlad, not 3D printed but a good material for...

Vlad, not 3D printed but a good material for tiedown stakes is titanium bar. I've been using a set for something like 25 years and they're holding up fine. Mine are 1/2" but if I were doing it again...
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