Assembly and riveting of the rear spar. I had to drill out some rivets as I had forgotten to dimple the reinforcing plate's flange. 11 rivets to drill out per spar, it's only time.



On the picture, some rivets are missing on the reinforcing plates. It's normal the holes will be used to rivet the ribs.

Drilling of doublers for the rear spar. The middle doubler needs an odd looking hole for the aileron connecting rod. The hole is first drilled then sanded to shape with a small grinder.



The all the parts got deburred and part of the spar flange got dimpled. It's not possible to dimple this part of the flange once the doubler in riveted. (see picture)

Work begins on the rear spar. The doublers are those of the RV-8, they need to be trimmed, then they have to be sanded, on those thick parts there are a lot of shear marks on the edges.