Tuesday, August 24, 2010

Plumbing, or something

I've been taping the mid-panel stringers on both sides over the last few days, and now I'm starting to tape the frame to side panel joints. Of course, when I got to the 2nd frame (#53), there was "some stuff" going on that needed to get sorted before I moved on.

Internal, articulating prods need a way to keep them from ripping the bow of the boat apart. Losing a guy and letting the pole rotate past its designed limit would be a real bummer with this setup, to say the least. I've seen a couple ways to do this, drawn a few options, and finally decided on this. My solution is to add (retractable) jockey poles for the guys, and have stopper knots in the guys to limit how far they can be released. So, with the struts out, and the guy released "to the knot", the pole is about centered, and braced from both sides. As a jibe is completed and things settle down, the leeward strut is allowed to retract and the windward guy pulled on. Pulling in the leeward strut gives just enough slack to let the lazy guy follow the pole. In the pic is the guide for the struts, PVC pipe bonded to the hull sides and frame 53, bent to make room for the prod to retract, grooved for the adjustment lines, and carbon re-enforced where the strut's inboard end will be when deployed. The struts are 1 1/2" fiberglass tubes, stout and cheap from McMaster Carr. The last boat-preserving measure is to fasten the cover for the pole articulator with plastic screws...

I've got another few days of taping frames to side panels, then adding stringers to the bottom between 89 and 53, then figuring out foredeck support, a last look-around to see what I've missed (?), and then it'll be time to add the deck.

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