I installed my butt ribs per the book and have the reduced edge distance. I did leave about 3/16" to overhang the #1 wing rib. I made sure my holes were drilled with an acrylic bit and were nicely chamfered and smooth. So far (2 years) no cracks.
I installed my butt ribs per the book and have the reduced edge distance. I did leave about 3/16" to overhang the #1 wing rib. I made sure my holes were drilled with an acrylic bit and were nicely chamfered and smooth. So far (2 years) no cracks.
Jim Ott
Portland, OR
Kitfox SS7 flying
Rotax 912ULS