Framed, then strung (stringered) up

Here's the cylinder for my prod articulator, cooking in the oven. It's a few layers of uni carbon, some biax glass, and a final layer of carbon cloth all wrapped around a waxed plumbing fitting (4" pipe union, od=4.5"), and then wrapped in plastic and tape for compression. It needs to cure at elevated temps so that the plastic male mold will shrink and come out after the epoxy kicks. It worked.

This is the current state of the keel. Not much progress, just a white tinted coat of neat epoxy added over the carbon, to be lightly sanded and then serve as a warning coat for future fairing and sanding.

The keel box sides being assembled to frame 110. I coated the inner surfaces with a layer of glass, and then a flood coat of epoxy with a little bit of thickener and some graphite dust. The sticks of fir ply are acting as alignment spacers, and are coated with packing tape where they are close to the glue.

I put the stringers and shear clamp on, still loose, just to get a look, and help hold up frames 18 and 53 for their bottoms to be bonded. Looks totally cool, I think!

Another shot, from the bow this time. I need to cut the stringer notches a little deeper on these last two frames, to account for the angle of the stringer.

So now I need to decide how much interior structure to bond in before the sides get attached to the hull bottom panel. I have the hull well supported on accurate molds, but I'm seeing some waves between supports -up near the bow especially- that I wouldn't want to lock in place. Hmmm, decisions. It sure is *easy* working on the bottom without those side panels in place...