A keel assembly (10) for a water craft is provided. The keel assembly includes a body having an aerodynamic cross-section with a pair of side faces (12a, 12b) and a leading edge section (14). A portion of the leading edge section is moveable relative to the body. A pair of vanes (32) are spaced from and connected to the leading edge section to be disposed within a flow of water moving past the body. Movement of the vanes pivot the portion toward the direction of flow of the water to offset the effects of a negative pressure region occurring at the leading edge section.
