Fwd Fuse Ribs, Bulkheads & Bottom Skin 28-1 to 28-5-4, 28-6-2

I decided to make a start on section 28 prior to riveting any firewall parts. This will allow me to assemble much of the bottom forward fuselage, and then figure out mods that I will need to make to accommodate things like the SDS EFI system that I am planning to install. Forward fuse rib and bulkhead parts The first steps in this section require separating angles and assembling the forward seat rail supports. Forward seat rail supports clecoed after countersinking nutplate attach holes as required Screw holes and nutplate attach holes being countersunk in the bulkhead side channels Next I began working on the control column mounts. these require match drilling bolt holes into the mounts and trimming away a fair amount of material. First bolt hole being drilled into the control column mount at the required position using the drill press Initial bolt holes drilled into both mounts. Here you also see the material removed from the mount on the left, and prior to removal on the right The b...