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Elevator Trim Tab Horn - E-717/718

Staunch111

Well Known Member
Hi All, can someone tell me how you riveted the aft holes on e717/718 trib tab control horns on the rv7? Following the instructions, the trailing edge is already squeezed (to match the trailing edge of the elevator) and the inboard trim tab ears are already bent. The plans use AN426-3.5 as opposed to a blind rivet. Any suggestions. Thanks!
 
Pulled rivet

I'm faily certain I used a MK-319-BS. My elevator is in the hangar so I can't look.
 
MD-42-BS

RV-6 shows MD-42-BS for all six control horn rivets, 1/8" diameter. MSP-42 works for this application per a VAF posting, no harm verifying with Vans.
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Solid rivets

It is possible to get solid rivets in there. I managed to wedge the skin open, then get in there with a small tungsten bucking bar.
Edit: Come to think of it, at least some of those were done with a squeezer.
 

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