Today I started working on the left main wing spar. Actually, some of the work is for both spars. I separated the attach angles, deburred and cleaned up the edges.
I attached the left rib doubler to the left spar as indicated on the drawings. I matched drilled the doubler to the attach angle on the spar. I removed the clecoes and deburred the holes. I set the double aside until it is needed in the future.
I drilled the 5/16" holes in the AEX aluminum blocks attached to the spar. I tapped the holes with a 3/8"-16 tap to 1" deep. Both the top and bottom holes of the AEX block were drilled and tapped.
I attached the rib attach angles to the spar. The tip angle is clecoed in place. The vertical attach angles are clecoed in place back to back as required. I will start work on the right spar tomorrow.
