Debur all holes and edges Primed HS 810 and HS 814 the angle pices that are on the front spar Prep and prime ribs 706, 707, and 708 used pneumatic squeezer Dimple ribs and front / rear spar Rivet doublers to rear spar 603 and 609
Front spar assembly with primed supports and primed ribs
Rivets on rear spar assembly, aft details by doublers
Rear Spar assembly looking at the forward rivet detail. close up of the fromt spar assembly support