Finished both wings rib riveting. Finished bucking the front spar and squeezing the rear spar. Had to pay close attention to what rivets to use where, but still made one mistake and used a longer rivet than was specified. Used the rest of the time securing the wings to my rig, and getting rid of the sag. I used a laser level clamped to the spar to project a line down the row of rivets, and then used my home made jack screws to level the spar. It was pretty straight, but I guess when I start adding skins, etc, it will want to sag more, so the jack screws will help prevent that.
Two Racks of Ribs
Note the unmarred shop heads.
Laser is on rivet line, not the visible screw line
