Patent ID: 7252264

Claim:
A vehicle adapted for airborne flight and waterborne sailing, the vehicle comprising: a fuselage comprising a roll axis; a left wing and a right wing; each wing connected to the fuselage by a respective first pivotal joint allowing the wing to rotate about a first pivot axis generally parallel to the roll axis from a generally horizontal wing position for providing lift during flight of the vehicle to a generally vertical wing position for providing wind-driven propulsion during sailing of the vehicle; each wing connected to the first pivotal joint by a second pivotal joint allowing the wing to rotate about a second pivot axis that is generally perpendicular to the first pivot axis for trim control of the wing during sailing; and a flotation hull attached to the fuselage; wherein the first pivotal joint comprises a first pivot axle attached to the fuselage and a plate rotatably mounted on the first pivot axle, the plate comprising first and second lever arms extending in two directions from the pivot axle, the second pivotal joint attached to the first lever arm, and the wing attached to the second pivotal joint.