Well, tonight was kind of crappy. I started leveling the wings and ended up undoing all the work I did last time (clecoing on the skins felt productive!).
First, I set up my two new plumb bobs with some string.
Exciting picture, huh.
Then, I hung the plumb bobs and realized that with the skins clecoed to the wing, I wasn’t going to be able to easily clamp the skeleton into perfect alignment. Instead of messing with it, I quickly made the decision to backtrack and get to a bare wing skeleton for alignment adjusting.
After pulling off the skins, I played a little with my adjustable stands and realized I’m going to need my lower braces before going any further.
I cut two 8-inch pieces of angle to use for the lower braces. One of these will need an additional piece of aluminum before clamping to the outboard rib.
I didn’t have time to mount up my angles, so all I did before going inside was to more accurately measure the wing twist.
At the inboard edge, looks like I have 2.25".
The outboard edge is pretty much at 2.75."
Hmm. That’s a 1/2″ of twist.
I think after clamping the aft spar in place, I’ll be able to minimize the twist. Maybe more tomorrow.
1.0 hour.
Andrew's RV-7 Build Log 