Brief Description: Center Section: Drill Stiffeners
The center section web stiffeners needed to be fabricated from some angle stock. The hardest part was clamping them tight enough to the center section to match drill them to the web without them moving. Once the two stiffeners were match drilled to the spar using the prepunched holes in the spar as a guide, I used a nutplate jig to drill the rivet holes for the 2 nutplates for each angle.
Clamp stiffeners to web
Drill stiffeners to web
Use nutplate jig to drill rivet holes for nutplates
