The F-633 R control mount replacement magically appeared on the front steps today. I promptly went downstairs, drilled and trimmed the part per the plans. Using my drill press this time around yielded a perfect result. I mounted both brackets and test fit the control arms. It all worked perfectly.
Tomorrow I will be drilling and riveting all the nutplates and …
Tasks Completed:
The right side control mount didn’t turn out to my liking. It didn’t sit flat with the bulkhead because the holes are slightly off 90 degrees. I ordered a new part and moved on to riveting the forward bulkhead and arms together. A couple of rivets look suspect. I’ll drill out and redo tomorrow.
Also I spent time with the plans trying to figure out whether to countersink the bulkhead for the web stiffener riveting or dimple it. The bulkhead is .040. Technically for an AD4 rivet the material should be .050 thick. But if I dimple the material I am afraid I will enlarge the hole on the .063 web stiffener angle. Time to write Van’s.
Tasks Completed: