For now, l clecloed the junk F-7105B-L rib into place as well as all the other F-7108 and F-7107 ribs.
I managed to rivet both remaining ribs to the firewall. For the next step I choose to rivet the F-7108B angle to the F-7108A rib. The plans have you do this riveting prior to setting the rib into place, but I chose to do it this way instead as everyone complains that the riveted assembly is very difficult to get the F-7105A center sub panel set into place after.
Space for the rivet gun was tight, but using the smallest rivet set I had allowed me just enough room to buck these perfectly. I did most of the rivets, leaving the last AN4 rivet open. I did this to allow me to easily slip the roll bar down tube into place. If I rivet it now I fear I am really going to have issues getting that down tube in and out. I’ll save it for later.
