Riveting top skins
Standby, riveting top main wing skins…
We tried back riveting them but I didn’t like the results of the shop head very much. The back rivet set isn’t offset quite enough for the thin 9A wing. I’m guessing it would work better on a -7 wing. So all wing skins are being riveted normally with a regular mushroom set and bucking bar. So be it. It is a lot of rivets to drive and Tanya can only do a couple of hours at a time, so that is in process.
Update: 6/21/05
Still at it…
I concluded that we used a little (just a couple of pounds) too much air pressure on the rivet gun on the first wing which resulted in a little more denting from the flat set than I would have hoped. I turned the pressure down about 2-3 pounds (to about 25lbs before the hose) on the second wing and the results are much better. Note that we’re just talking about looks here. Ok, maybe a tenth of a knot of speed due to the slight rivet dents on the first wing. Yeah, whatever, I’m good with it. The next plane we build will be a show winner :).
