Damazio family's RV-10 project: Fuselage side skin substructure riveting

Finally, I started riveting the fuselage side skin parts:

Fuselage bulkhead riveted to seat back brace

Left side of seat back brace, gusset, and mid-fuselage longeron riveted together

Right side of seat back brace, gusset, and mid-fuselage longeron riveted together

Mid-fuselage longeron riveted to forward gusset

Upper fuselage channel riveted to gusset

This section doesn't call for it at this time, but I added the nutplates on the upper fuselage channel since it's easier to do at this time:

Nutplates riveted to upper fuselage channels

I then riveted the channels to the firewall brackets - the ones closer to the firewall on the lower flange of the lower channels were the most annoying, since the firewall lower channel was not trimmed for this, but I got to most others with the squeezer:

Upper fuselage channel riveted to firewall upper angle

Lower fuselage channel riveted to lower firewall bracket

Bottom flange of lower fuselage channel riveted to lower firewall bracket

Inside view of the bottom flange of the lower firewall bracketed, riveted to the lower fuselage channel

and then the longerons to the forward gussets (to my own surprise, easily doable with the squeezer):

Forward fuselage longeron riveted to forward gusset

Fuselage channels and longeron riveted in place

as well as the bottom flange of the bulkheads:

Lower flange of the forward fuselage bulkhead, riveted to the lower fuselage channel

I also got a new dimpling bar which made it easy to dimple those #30 holes on parts that were already riveted in place:

Dimpled #30 holes on outboard rear seat rib

A missing step in the manual is to countersink this bulkhead hole for the dimpled hole that goes over it (the rivet is called out on the last page of section 29, but no other steps before then to actually allow the riveting):