Boat Keel Design
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,. I'm going to use a straight rudder shaft (may require relocating the rudder tube) and glassing a semi-circular groove in the hull, i assume that the more it overlaps the shaft, and the closer it is to the shaft the less the drag.. Hi folks, i'm after some advice regarding a new keel. it's for a hartley 16, which is a 5m trailer sailer. upwind speed would be about 5kts. the original keel is a steel plate, 10mm thick..