Abstract: A water craft having a bow and a stern including an engine of sufficient thrust to create an enlarged wake at the stern of the boat as the boat moves along the surface of a body of water. The water tight compartment is positioned to carry water below the water line and essentially astride the centerline or keel of the boat. The compartment is adapted to contain liquid water in an amount sufficient to enhance or equalize the size of the boat wake. The compartment extends from a point forward of the transom and engine, and extends to a point forward of the midpoint between the bow and the stern, and terminates short of the bow while serving to exert downward force on the bow against the water when the water craft is underway and the compartment carries water.

Abstract: A water craft having a bow and a stern including an engine of sufficient thrust to create an enlarged wake at the stern of the boat as the boat moves along the surface of a body of water.

Abstract: The patent describes a power boat having a transom and a swim platform or step generally projecting from the transom at a right angle at or near the water line. The swim step is adapted to the launching of a seated rider carried on a sky ski having an elongated board and a tee bar normally extending from the board into the water. The swim platform has a slot adapted to receive tee bar and extends from the port and/or starboard margins and runs generally parallel to the transom to an extent sufficient to snugly receive the tee bar while the board is supported by the platform with the tee bar extending through the slot and below the platform into the water whereby a rider can mount the seat and secure himself to the sky ski and then readily launch himself and the ski by pushing out of the slot.

Abstract: A water craft including an engine of sufficient thrust to create an enlarged wake at the stern of the boat as the boat moves along the surface of a body of water, and at least one water tight compartment positioned below the waterline having a sealable opening at the stern of the boat below the water line. The compartment extends from the stern to a point forward of the engine. The compartment is adapted to contain liquid water in an amount sufficient to enhance or equalize the size of the boat wake. The opening is adapted to be opened to drain out the water.