Mid-fuselage bulkheads primer and riveting

We primed all the mid-fuselage bulkhead (and some of the mid-fuselage rib) parts:

Washing parts for primer with Prekote

Priming parts

Primed mid-fuselage (bulkhead and ribs) parts

More primed mid-fuselage (bulkhead and ribs) parts

Even more primed mid-fuselage parts

and then started riveting them:

Riveted mid-seat rail supports

Center section bulkhead with the doubler installed

Rear side of the center section bulkhead doubler

Mid-seat rail supports in position

Most center section parts are also bolted on, so I torqued those properly:

Torquing mid-seat rail supports to the center section

I did the same for the aft center bulkhead:

Aft center-section bulkheads with doublers installed

After clecoing those parts to the bulkhead, I torqued all the bolts:

Aft center-section bulkheads assembled with bolts torqued
and riveted the plastic wear strip:

Wear strip pop-riveted to aft center section bulkhead

I riveted the rear spar side channels:

Rear spar bulkhead side channels with gussets and nutplates installed

and started riveting the rear spar attach bar, only to realize halfway into it that the shop heads were supposed to go on the other side :(

Rear spar attach bar, with rivets on the wrong side :(

After replacing those rivets, I finished riveting the spar attach bars and the idler arm brackets:

Riveted rear spar

Finally, I riveted the fuselage bulkhead (rearmost bulkhead, just before the baggage compartment), which has surprisingly little done to it at this stage:

Riveted fuselage bulkhead

Time lapse:

Total mid-fuselage bulkhead rivets: 413
Total mid-fuselage bulkehad time: 53.6h

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