I'm about to disassemble the fuselage for deburring and priming when I noticed that I haven't yet drilled the F-902 bulkhead to upper longeron.
The plans say don't rivet that yet, fine, but it's not clear when to drill. Should I hold off drilling until fitting F-7105B or is it better to match drill now and use the hole to back drill F-7105B later?
The plans say don't rivet that yet, fine, but it's not clear when to drill. Should I hold off drilling until fitting F-7105B or is it better to match drill now and use the hole to back drill F-7105B later?