I followed the plans be apparently still did it wrong
Reviving this old thread yet again.
I'm at the point where I'm ready to attach the flaps to the wing, but I can't find any instructions on how to accomplish this (other than the choice of hinge pin methods). As I started digging around here on VAF for info, I discovered many builders countersunk their Flap Brace rather than dimpled it. I dimpled mine per this statement on p 7-9 of the plans:
Drill, deburr, dimple where required, and rivet the W-721 flap brace (DWG 14A) to the rear spar.
The forward side is riveted to the rear spar with standard rivets, and the only other holes in the brace are the aft ones that attach to the bottom skin, sandwiched between it and the hinge for the flap. If these holes aren't the ones that should be "dimpled where required," then what holes is this instruction discussing?
Did I miss a secret message somewhere to disregard the plans for this step and countersink instead, or did I misread the instruction?
Also, I can't find any instructions on how to mount the flaps as far as alignment. DWG 9A shows a 1/4" gap between the aileron and flap, but that's all I can find. I presume they should be even with the trailing edge of the aileron, but I can't find that written anywhere. The section titled "Attaching Flaps to the Wing" only discuss two options of securing the hinge pin. I've spent all evening scouring the plans and drawings for clues, but I can't find anything else. Can someone point me in the right direction?
RV-8 under construction as of Sep 30, 2012
Tail kit completed on Feb 8, 2012 (180 hrs)
Wing kit mostly completed, fuselage under construction as of March 6, 2014 (750 hrs)
Paid up for 2017
Last edited by Nihon_Ni : 10-26-2017 at 08:53 PM.