Keel design: what's best? by ted brewer. article taken from good old boat magazine: volume 3, number 4, july/august 2000. ted brewer reviews the ins and outs and ups and downs of keel design. the purpose of a keel, fin, or centerboard is to provide resistance to making leeway; in effect, to keep the yacht from sliding sideways through the water due to wind pressure on the sails.. 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,. Keel design is constantly evolving and nowhere is this more apparent than in modern racing yachts such as the imoca open 60 class. these fast offshore monohulls use highly sophisticated canting keels to help them stay upright when sailing upwind. the boats are designed to be as light as possible while at the same time […].
Suddenly it’s little wonder why this boat’s keel is so ineffective. the part that is hard for me to understand is why they chose to design a keel this way when there are plenty of superior shoal keel configurations – well beyond the keel centerboard. here is that old hunter i found in rock hall.. 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..
0 comments:
Post a Comment
Note: Only a member of this blog may post a comment.