Sailboat keel having a cantilevered trailing edge flap

摘要

A keel assembly for a sailboat, the keel assembly having wing-like appendages at the bottom of a fixed keel and having a rotatable flap located at the trailing edge of the fixed keel. The flap includes a cantilevered portion extending below the vertical portion of the keel. In operation, the flap is rotated a few degrees to one side or the other of the center line of the boat so as to create an asymmetrically shaped keel so that the keel and hull exhibit a high lift to drag ratio and efficient sailing performance.