I haven’t made much progress on the fuselage recently due to work on the wings, but now it’s back to work on the bulkheads – specifically the F-705 rear spar carrythrough bulkhead. Here’s the 2024-T4 strap that forms the primary carrythrough load path. It gets match-drilled to the lower bulkhead channel…

…and here’s the doubler that forms the other half of a clevis with the strap (above) that retains the wing rear spar ends. This part was match-drilled in assembly with the strap and lower bulkhead channel. Nothing particularly tough here.

Here’s the entire lower channel and spar carrythrough structure clecoed together after match-drilling.