RH wing leading edge hole mismatch between ribs 7 and 8
The attached photos show the main issue. Initially it was thought that the leading edge ribs were forcing the leading edge skin into the wrong shape. At one point all these ribs were removed and it was found that this mismatch could be reduced to a low level. But at length this observation was misleading, and subsequent test fitting of the fuel tank skins finally convinced me this mismatch was real. Along the way I made some minor adjustments to the leading edge ribs, which in retrospect might have been avoided. But in any case these ribs tended to mismatch the leading edge skin holes significantly (note rib 7 was also adjusted by 0.8mm back in 2020) requiring excessive forcing.
I go into more detail in the posting "Upsizing LH and RH wing main spar topside holes between ribs 7 and 8"
Upsizing LH and RH wing main spar topside holes between ribs 7 and 8 - We Build Planes
This post is from Adam Dickson