To design a ballasted daggerboard? - Page 2 - SailNet Community
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post #11 of 13 Old 03-25-2011
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I am not a physicist, or a mathematician or even a rocket surgeon, but i figure to make the daggerboard compensate for the movement of crew and resistant to heeling, the daggerboard would have to weigh as much as the crew on board, which would make it impossible for aforementioned crew to raise it.

The low-buck solution is to bundle six- eight pool noodles together for each side, wrap in a sling of sunbrella with grommets sewn along the edge, then screw the floatation to the gunwales through the grommets. Much more stable, and still sailable.

Like this:
Dinghy Dogs - A Better Inflatable


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Last edited by bljones; 03-25-2011 at 06:39 PM.
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post #12 of 13 Old 03-25-2011
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What Faster said.

It would be a simple matter to make up a small set of adjustable outriggers, and turn the Opti into a sort of trimaran. The idea is to set them so they extend at an upward angle so the boat will still heel somewhat, and simply "clamp" them to the gunwhales. Yes, it will interfere with the normal handling, but as you adjust them inward this effect will be lessened along with the stability. Just like training wheels.
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post #13 of 13 Old 03-25-2011
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If the water is deep enough, make a long daggerboard with the bottom part made out of 10 pounds of lead. With a long board, that will provide a lot of stability.

If you can't go with more weight, go with more depth with the weight you can use.

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Brad

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