A two person job done by one

Combining the seat-rib structure and the bottom skin is a job suitable for two or maybe even three persons, to be able to move the ribs into position. I managed to do it by myself but it was a hassle and I need to re-prime in a couple of places.

Time to move things around

Marking where not to rivet

Marking where not to rivet

Such a good plan, rivets in place for back-riveting

Just place it on top? No way, lots of fiddling done and all the pre placed rivets had to go

Still hope to be able to back rivet most of it