Sailboat Keel Design
Sail, no ballast in the keel, advanced- composite hulls, and even horizontal keel and rudder lifting wings that allow them to fly altogether free of the water—are the ultimate in horsepower you may be unaware that a revolution in keel design is under way. it gathered momentum several years ago with the success of a raceboat called wild. 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.. Slapping a winglet on a keel is not a slam dunk to make a net improvement in the boat's performance. the winglet itself adds drag, so it has to be shaped and twisted so as to reduce the keel's drag more than the winglet adds..
