Brief Description: Ribs - Assembled, Drilled, Deburr, Dimple, Prime
I assembled the ribs to the spars and drilled all the interfacing holes. Then I deburred all the holes and discovered that I think the plans omit a step of dimpling a few places. I dimpled the rib flanges in one place, on the small flange. And I dimpled the rear spar flange only at the holes where the rib attaches. These are the only holes drilled. I cleaned and primed.
