deburr and dimple
A productive weekend indeed on the forward fuselage, although not a whole lot to show for it. Tanya let me work in the garage the whole weekend. I’ve been disassembling, edge and hole deburring, dimpling, machine countersinking, and scuffing. Most of the small parts are ready for primer. All of the skins are ready for primer. I got center section and longerons removed and ready for hole prep.
Customization: I spent at least six hours planning and fabricating a bracket for the parking brake valve to replace the brake hose bracket on the firewall. I used a piece of hat channel riveted to the firewall (used the existing holes) and some .032 scrap to make the cable mount and valve arm stop. I have spent a lot of time pondering this contraption. It is all done and riveted to the firewall. I also decided to do a little reinforcement of the side arm rests. I just used a single piece of .063 3/4×3/4 angle run lengthwise. It won’t be bullet proof, but is better than nothing. As designed, the arm rests can’t take any load from a person using them to get out of the cockpit. My addition won’t accept full load, but might help. If you really wanted to be able to use the arm rest to pry yourself out of the cabin, you would need to use 1/8″ angle and tie it into the bulkheads. That would be more weight and effort than I was willing to do.
