A multi-purpose personal watercraft for deployment in different configurations as desired by a user. The multi-purpose personal watercraft comprises a base frame which forms a watercraft base which includes side extensions, an aft floor board, and a bow portion, as well as two opposing mirror image side floats with which the base frame is selectively integrated. When in place, the opposing side floats form the multi-purpose personal watercraft's U shaped hull and enable the selective attachment of a rudder assembly behind the multi-purpose personal watercraft's stern. With respect to propulsion, base frame is configured to enable the selective deployment of pedal propellers, a user's legs, or a trolling motor. A dual steering system enables the control of up to two discrete steering mechanisms from a single position on the watercraft.

A powered watercraft system including a watercraft body, a propulsion system, a sensor configured to measure a value indicative of a manually-generated time-variable first propulsive force resulting from a body motion of the user to move the watercraft body, and a controller configured control the propulsion system to generate a second propulsive force for powering the watercraft body based on the value indicative of the first propulsive force, the generated second propulsive force being at least partially contemporary with the first propulsive force.

The present invention relates to a mechanism comprising a frame (10), levers (7), pedals (19,17,13), clutches (01), and/or freewheels, gears and/or pulleys, rotation shafts (8,9, 11, 14, 15), and/or push shafts levers (20) which convert the reciprocating pushing motion into a rotational motion of the different vehicles or whatever needs of driving force, by the muscular effort of the legs of at least one user in a vertical position (standing) and/or a user in a horizontal position (sitting) or even completely lying on the back or on the stomach in order to push the levers (7) which bounce back and forth around a horizontal axis (HX) and/or two parallel and symmetrical vertical axes (VX1 and VX2).

A multi-purpose personal watercraft for deployment in different configurations as desired by a user. The multi-purpose personal watercraft comprises a base frame defining a watercraft base which includes selectively foldable side extensions, a removable aft floor board, and a bow portion, as well as two opposing side floats with which the base frame is selectively integrated. When in place, the opposing side floats defines form the multi-purpose personal watercraft's U shaped hull and enable the selective attachment of a rudder assembly. With respect to propulsion, base frame is configured to enable the selective deployment of pedal propellers, a user's legs, or a trolling motor. A dual steering system enables the control of up to two discrete steering mechanisms from a single position on the watercraft.

A watercraft includes a hull, an opening extending vertically through the hull, and a support assembly configured to mount a propulsion mechanism to the watercraft. The hull at least partially defines the opening. The support assembly includes a rightward support device attached to the hull, positioned between a forward portion of the opening and a rearward portion of the opening, and at least partially defining a right lateral portion of the opening. The support assembly further includes a leftward support device attached to the hull, positioned between the forward portion of the opening and the rearward portion of the opening, and at least partially defining a left lateral portion of the opening.