Abstract: A safety release footstrap for windsurfing boards using a differentiating release technology incorporated in a device containing a teardrop-shaped exit ramp, formed by a set of flexible plastic jaws, that retains the footstrap on the windsurfing board. Under conditions that would cause injury, the jaws are forced open, to release the footstrap from its loop, releasing the foot from the windsurfing board.

Abstract: A motorized sail tensioner gives the sailor the ability to change the sail shape while sailing, permitting constant adjustment of the sail with only the touch of a switch, to adjust for wind gusts and lulls. It accomplishes this by using a small DC-battery powered motor, assisted by two methods of gear reduction, using a planetary gear and screw. The motor is activated by a remote RF wireless transmitter, worn on the sailors wrist, and activated by a switch, worn on the sailor's index finger. The sail tension is changed by moving the mast position by the action of moving a nut up and down a screw attached to the motor.