3/31/2009 Tank - 5 hours Last night dad and I worked on the tank. Dad deburred ribs, stiffeners, and skins. I finished fabricating the tank attach angle. I put notches in the edge to clear the rivet heads for the skin to rib joint, because on the right tank, I ran into an issue at assembly with this!
I borrowed Vern's fly cutter and cut the hole in the inboard rib for the access plate and in the baffle for the fuel level sensor. I ended up cutting the hole in the wrong spot on the baffle, so I made a cover plate that I will rivet in place to cover my mistake. I then cut the hole in the proper location and transfer drilled the hole patter from the old cover plate for the nutplates.
I then transfer drilled the hole pattern from the stiffening ring onto the inboard rib for the nutplates.
