Fairly productive day. Managed to seal the center-hole in the second rib to prevent fuel flow during knife-edge flight (yah, right!). Forgot about the pilot-hole in the middle of any piece cut with a hole-saw, so ended up patching that with a smaller piece. Could have just done it over cleanly, but my final technique worked and being inside the tank, probably isn't worth the effort to make look good.
Also ripped out, and totally re-constructed the flop tube bracket on the second rib. The first bracket I constructed was too high and presented another potential spot where the flop tube could get stuck.
Last, managed to seal up the outboard rib.
Only work remaining is with the baffle plate and final tank cleanout. Oh, and the fuel sender. Think I'll tackle that next.
Patched the fuel transfer hole as per Van's guidance
