Clamped the W-707E and W-707F doubler plates onto the W-707A rear spar. The flanges of the W-707F is flush with flanges of the spar. The edge of teh W-707E was placed 50 3/4 inches from the outboard flange of the spar.
The rivet holes were matched drilled using the spar a a template and clecoed along the way. Once that was completed, I clecoed on the W-707G reinforcement fork and the W-707D doubler onto the rear spar and matched drilled all of the rivet holes.
The W-707E is matched drilled to the rear spar.
The W-707F double is matched drilled to the rear spar
Doublers and forks matched drilled to the rear spar.