AX-O
Well Known Member
I spent about 1.5 hrs designing the cover plates and about 8.5 hrs installing the mod. This is the entry from kitlog. I hope it helps someone out there.
Today was a very long day. As always building takes much longer than you expect/plan. After figuring out how I wanted to do the gearbox mod, it was time to start building. My design has twenty K1100-08 nutplates. Basically the cover plate is 3/4 of an inch wider than the opening. The center of the nutplates is approximately 9/32 inch from the edge of the hole. I wanted to go further away but could not due to the aluminum angles behind F802C (after seeing the end result, I would not go more than 11/32 from the edge). The 14 vertical nutplates are 1 and 3/32 inch away from center to center. The #40 holes (that hold the nutplates) were machine countersunk. The #19 holes were dimpled using the pneumatic squeezer. AN426AD3-3.5 rivets were used to rivet the nutplates and AN509 8R8 screws were used to secure the cover plate. I am very happy with the result. I hope the mod was worth the approximately 10 hrs of work.
Today was a very long day. As always building takes much longer than you expect/plan. After figuring out how I wanted to do the gearbox mod, it was time to start building. My design has twenty K1100-08 nutplates. Basically the cover plate is 3/4 of an inch wider than the opening. The center of the nutplates is approximately 9/32 inch from the edge of the hole. I wanted to go further away but could not due to the aluminum angles behind F802C (after seeing the end result, I would not go more than 11/32 from the edge). The 14 vertical nutplates are 1 and 3/32 inch away from center to center. The #40 holes (that hold the nutplates) were machine countersunk. The #19 holes were dimpled using the pneumatic squeezer. AN426AD3-3.5 rivets were used to rivet the nutplates and AN509 8R8 screws were used to secure the cover plate. I am very happy with the result. I hope the mod was worth the approximately 10 hrs of work.