I've been frustrated with my lack of organization. It seems I'm constantly
looking for the right drill bit. So before I got started today I made this
handy dandy drill bit holder.
I also made this little table so I don't have to look up these common sizes.
It was time to get started straightening and fluting the bulkheads. Since
the tailcone is conical (duh...it's a tailcone after all),
the flanges of the bulkheads shouldn't be square to the web. So I used this angle
transfer tool to match the angles on the top, bottom, and sides of the fuselage.
I match drilled the F-728B to the F-728A...
...used the unibit to open up some holes for snap bushings...
...and straigntened and fluted the F-706, F-707, and F-708 bulkheads.
I got them as straight as I could, but they're still not perfect. The
F-706 is the worst. That bulkhead gives new meaning to the word "floppy".
I also match drilled F-729B to F-729A. Easy stuff.