Brief Description: Left Aileron Markup / Hinge Drill
Lots of measuring and remeasuring to lay out the rib location lines on the left aileron.
Drilled hinge; as a result, had to relocate the center rib line toward the outboard edge about 3/32" to ensure the hinge rivet will line up with the center rib centerline. Other rib locations worked out just fine.
Next, will drill the rib rivet pilot holes and position the ribs.