Wednesday, July 15, 2009

Stringers and Cleats

Today I trued up the centrecase, put in some stringers and a couple of cleats.

I think I'm going to go with a square section keel head, but anyway it isn't critical just yet. This morning I trued up the keel box sides and then fitted and sanded them ad infinitum to get a nice mating surface with the bottom.

That done, I started thinking how I was going to clamp everything together. It's easy to clamp at the top, but not at the bottom. I solved that problem , as well as making something to locate the thwarts when I install them by putting cleats on the back of 110 and front of 124. I did it with the keelbox sides in place and butted them right up to them, so that they "lock" the bottom of the keelbox in place. They also provide support for the Thwarts and if I've done it right, the thwarts should be flush with the bunk tops when it's all installed.

Naturally I carefully slid the keelbox sides out after clamping and before the glue set up. They got a coat of epoxy on the insides ready for glueing later. I also roughly cut out the keel hole. The Fein Multi tool cut through ply and epoxy like butter! It took about Two minutes!

After that, I started making more stringers. I used inch and a quarter square Oregon and bevelled the edges of the exposed face a little. I guess they are heavier than beams with lightening holes, but I think they are going to be bullet proof once the cockpit floor ones are bonded to the ply. I've committed the no -no of glueing end grain, but that is really just to locate them until they are bonded to the underside of the cockpit bottom. I've put Two between 169.5 and the stern. The batteries are just to make them conform about a Sixteenth to match the curve of the hull.

I guess we will let that all set up over the weekend, then it's more woodwork for the thwarts and bunk covers. We want to use them as airtanks. I'm not sure if we will foam them or just have an inspection cover.

I've emailed Tim about the sexy curve of the cockpit sides, other guys seem to have widened the cockpit up front, but I think I like the idea of more deck to provide more reserve bouyancy in a knockdown, and will probably build it the way Chris designed it.

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