|
|
|
|
Kurt Haller RV-9A
|
Date: 5-28-2018
|
Number of Hours: 11.00
|
Manual Reference:
|
Brief Description: Main gear fairings
|
|
--Having laid out offset rivet positions on the two sides of the main gear fairing hinges and "shooting" through the fiberglass to the #40 holes drilled in the hings halves, there were little divot marks on the opposite hinge half right where #10 holes could be drilled to give flox a mechanical hold on the hinge halves. Image 1 shows a fixture to hold down the hinge material while drilling these holes.
--Image 2 shows a fairing clamped to the edge of a worktable. Inside of fairing was sanded along the rivet line w/80-grit paper then wiped with acetone-soaked paper towel, Straight epoxy brushed on, then a layer of running flox. The hinge was random-orbit-sanded w/80-grit paper, wiped with acetone soaked paper towel, and buttered with flox before dropping it onto the rivet line and holding with clecos.
--One by one, removed a cleco and inserted AN426-3.5 rivets (the outside of the fairing had been ctrsnk for flush rivets, of course), and squoze them about half-way, per the instructions (to avoid cracking the fairing fiberglass. Made sure a "bump" of flox was present in each #10 hole (Image 3).
This is basically how ALL hinge-to-fiberglass joints were executed for the whole plane. There is flox support under all of the hinge loops. Hopefully, the extra support will forestall loop loss as flight cycles vibrate the shit out of everything!
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copyright © 2001-2024 Matronics. All Rights Reserved.
|
