Used the laser to rough in the aft spar. I first found the centerline as shown in picture 1. Then I set the angle of incidence for the spar by raising and lowering the hinge alignment tool (aluminum C channel with hinge line in it) after setting the incidence (roughly) i aligned the spar tips. This was done by plumb bobing to the lerpendicular line I drew on the floor a few days ago. Next I set the roll angle by shooting a level laser to two scales that were clamped to each spar tip from the centerline. These can be seen in pictures 2 & 3
