Wing rib 4 assembly

Used Gesipa 4.8x10mm whenever the total thickness was 6.5mm or less, used supplied 4.8x15mm rivets otherwise. Inquiries to TAF confirmed these 4.8x15mm were indeed from Gesipa, despite differing appearance.

The reinforcing angles have not been stepped. These will be re-fabricated as the holes are misaligned with the bottom skin. Discussion with TAF confirms this has not been amended.