Fitted and drilled left inboard ribs and match drilled top skin: 3 hours

Spent a good bit of time fitting and drilling the ribs using the skin as a guide. Also had to drill the tricky holes through the front spar and reiniforcement angles.

The holes on the right were very tricky to measure, mark and drill.

Every hole has to be a minimum distance from the edge of the material and my top hole was right on the minimum. ( but good according to mil-spec guidlines for riveting ) I will give myself a little more space on the right side.

All the top side holes have been match drilled.