A hand-carried self-contained power unit designed for temporary mounting upon light watercraft. it consists of a light, gasoline engine driving a vertical drive shaft, rigidly attached to the engine. the vertical shaft drives a propeller shaft perpendicular thereto. the entire unit, may be rotated to varying positions for steering the craft on which it is mounted, and may be hand tilted to provide for shallow draft. it does not include propelling unit, outboard.