Boats; and (3) efficiently designed hulls make the best use of the horse- power produced by a sail plan. clearly, the designers of the clipper and 2 is a typical keel design with a sweepback angle of about 400. the effect of sweepback angle and aspect . keel,. The keel design for the offshore 42 has by far gotten the most attention when it comes to engineering. we all know that a keel on a monohull is one of the most important aspects when it comes to safety and performance but judging by the failures we have seen in recent years, keels seem to have become a neglected part of production boat design.. I am building a small sailboat based loosely on an exisiting design, and need advice on daggerboard keel. the original design uses only plywood and unidirectional glass fibers. compared to the original design, i have to increase both the depth of the keel by about 15 % and the weight of the keel bulb by about 25 %. depth: 160 cm. length: 45 cm..
In the fully raised position, the keel will draw 3.5 metres. furthermore it is possible to raise the keel from nine metres to the six metre position while the boat is sailing and the keel is under load. this operation adds such immense loads and demands that the keel trunk is constructed incredibly strongly.. I am looking for the best designed lifting keel / drop keel boat in a 25' - 28' range. my boat is 26 feet long, 3600 pounds displacement of which 1600 pounds is the drop keel.. The designs are: a fin keel, an integrated l-bulb keel, an l-bulb keel and a t-bulb keel. all design types can be found on existing sailing yachts but there has been little research made which clearly.
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