lundi 8 février 2010

Lifting keel and daggerboard

Weather in Houston area is not really enjoyable at this time of the year. It is either warm or cold and it rains. I try to catch all warmer days opportunities to progress with the epoxy. Waiting for the plywood to arrive, I continue on the keel and daggerboard.
The lifting keel has now its final shape before fiber glass layering. It was a bit longer than expected, the wood being really hard. From the initial shape, I mainly use the electric planner to get to the final result, with some final sanding.
The bulb model is made of 1/2" styrofoam plate from Lowes. I cut discs at the size of the drawing and glued them together with cyanocrylate super glue. It is not the best glue for this purpose (tend to eat/melt the foam), but the result is good enough. Each disc that is in the middle of the keel has a cut out for the fin. To cut the styrofoam, I used a soldering gun, it goes very fast. Then all that is shapped to the right dimension. Next step for the bulb is the mold and then I will take this to the foundry for lead pouring. I still need to figure out how to do with the hollow shape of the fin in the bulb, may be use cement or plaster... I will see this later.


I received the steel also for the daggerboard. Instead of welding pieces of flat 1-1/2"x6" and 1"x4" flat bars, I used 1"x10" flat bar with 1/4"x6" flat bar and epoxy glued them on both sides. Like this I avoided any welding. I ordered the flat bar 1"x10", but I had to cut it to shape with my grinder. It took me a while, but it is done...

That the farther I can go, now I need the wood and the fiberglass to continue my boat...