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Builder Question

 
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rveighta(at)earthlink.net
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PostPosted: Sat Apr 12, 2008 4:37 pm    Post subject: Builder Question Reply with quote

Guys, what's a good way to attach gear leg intersection fairings to the fuslelage where you can't install plate nuts due to a lack of access? I've tried sheet metal screws, but they have a habit of backing out under vibration. Nutserts? Don't think they will work due to very thin fuselage skin. Any suggestions will be appreciated.

By the way, I just finished fitting up my empennage fairing and discovered a neat way of reshaping the forward edge (the one that should fit around the horizontal stab but doesn't) I used a heat gun to just barely heat up the fiberglass (nothing new) then used a bucking bar to bring the glass to shape, all the while using an air gun to cool the glass. Worked like a charm! Fits close and was easy to do.

Walt Shipley RV8A (flying) RV8 close to flying

Sorry to interrupt the political discussion with a lowly builder message.......
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tcone1(at)comcast.net
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PostPosted: Sat Apr 12, 2008 5:37 pm    Post subject: Builder Question Reply with quote

Walt,

I was able to fish some K1000-3's in place on my -8 and used cherry max
rivets that were replacements for flush rivets...don't have the number off
hand...I'm stuck on the road.

Basically what I did was drill all three holes for the nutplate. Stick a
piece of safety wire through one of the rivet holes and ran it over to the
gap between the outer skin and the gear let. Thread the safety wire through
both of the rivet holes in the nutplate and fish the end back through that
same gap and here's the frustrating part, get it through the other rivet
hole and back outside the skin. Once you've got that, you're home free.
pull on both ends of the safety wire. This will draw the nutplate into
rough position. Put a #6 screw into the threaded portion of the nutplate
and tighten the screw with the holes lined up visually. Then draw the
safety wire out and install cherry maxes...Viola.

It sounds tough but really only took 10 minutes or so of swearing before the
safety wire magically found the correct hole. I've got two screws holding
on each intersection fairing. I've got 125 hours and no problems so far.

Good luck,

Tim
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rickpegser(at)yahoo.com
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PostPosted: Sat Apr 12, 2008 6:15 pm    Post subject: Builder Question Reply with quote

rivnuts will work fine for that aplication as long as you cut the lock slot in the skin. else drill for nut plates and sneak them in using safety wire and blind rivets. these rivets are steel install using zinc chromate paste or proseal. hope it helps.
rick

rveighta <rveighta(at)earthlink.net> wrote:
[quote]--> RV-List message posted by: rveighta

Guys, what's a good way to attach gear leg intersection fairings to the fuslelage where you can't install plate nuts due to a lack of access? I've tried sheet metal screws, but they have a habit of backing out under vibration. Nutserts? Don't think they will work due to very thin fuselage skin. Any suggestions will be appreciated.

By the way, I just finished fitting up my empennage fairing and discovered a neat way of reshaping the forward edge (the [quote][b]


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