Patent ID: 9738363
Date: 2017-08-22
CPC Classifications: B60F,B63H

Claim:
1. A watercraft propulsion system comprising: an outboard motor; a suspension frame supported below the motor, the suspension frame including a base member and an upright member coupled to the base member, a base actuator coupled to the base member for adjusting the length of the base member, and an upright actuator coupled to the upright member for adjusting the length of the upright member; a drive wheel supported by the suspension frame and operably coupled to the motor; a first driven wheel supported by the suspension frame in spaced relation to the drive wheel; a second driven wheel supported by the suspension frame in spaced relation to the drive wheel and the first driven wheel; a continuous track supported by the drive wheel, the first driven wheel and the second driven wheel, the continuous track including an upper run engaging the first driven wheel, the second driven wheel and the drive wheel, and a lower run engaging the first driven wheel and the second driven wheel, the lower run extending below the upper run and including a downwardly facing water engagement surface; and a transom mount for coupling the motor to the transom of a boat, the transom mount including a trim control for vertical adjustment of the suspension frame relative to the transom, and a tilt control for pivoting adjustment of the suspension frame relative to the transom, wherein the suspension frame is configured to be articulated such that the distance between the first driven wheel and the second driven wheel may be adjusted to vary a length of the water engagement surface.