Inner Wing Build
When fastening the rear ribs ,attach the rear spar first,then tighten the bolts on the main spar.
The mains spar attach holes are fixed and the rear spar holes have to be drilled on the 2nd spar and you have to make sure it is in the same plane as the other ribs ie; lay a straight edge across the rear of the ribs and they should all touch the straight edge.
I found it quit difficult to get the bolts through the main spar,and needed a hammer to persuade most through the holes.
The mains spar attach holes are fixed and the rear spar holes have to be drilled on the 2nd spar and you have to make sure it is in the same plane as the other ribs ie; lay a straight edge across the rear of the ribs and they should all touch the straight edge.
I found it quit difficult to get the bolts through the main spar,and needed a hammer to persuade most through the holes.
