Today I put a few rivets in to the rear wing spar while I wait for my longer straight rivet sets to come so I can finish up the main spar. I riveted the outboard three ribs to the rear spar, leaving holes for the aileron gap fairing to be attached later. I had to further countersink the holes on the doubler attaching the W-712 end rib because I had only countersunk them for -3 rivets! Oops! Now they are countersunk for the proper -4 rivets and the rivets are installed.
