Progress continues on the tail. I have been trying to prepare parts ahead so that I can have one massive priming session. Unfortunately despite my experience with the wings, I ended up with oblong holes when drilling through the rudder horn. There is a sandwich of four parts as shown below comprising the spar, rudder horn, a backing plate, and the bottom rib. I had all of them clecoed together and needed to match drill. Fair enough. Unfortunately in that process when I disassembled it was clear that the parts had moved along with the drill itself and the holes were oblong. Especially on the four holes on the flange of the bottom rib.
Upsizing is not an option here, as there is not enough edge distance on the bottom rib flange for a larger hole. Another $100 mistake. What needs to happen I believe is some clamping and match drilling with a very sharp drill bit on this part. I will be much more careful on the next piece. It is quite disappointing given the experience level I thought I was building. Two major parts ruined now just in the first few assembles.
