A surfboard core and a stringer array embedded in the core to modify handling characteristics of the board.

A reconfigurable wakesurf binding apparatus and system is provided. In certain embodiments, the wakesurf binding may comprise a top surface of a wakesurf board having a longitudinal axis, a first pair of female threaded inserts in the top surface aligned along a first axis angularly offset from the longitudinal axis of the wakesurf board by a first offset angle, a first strap having a first end comprising a first matrix of holes therethrough, a second end comprising a second matrix of holes therethrough, and a longitudinal axis, wherein the first strap is configured to be removably interconnected with the first pair of female threaded inserts with its longitudinal axis at an angle offset from the first axis, a second pair of female threaded inserts in the top surface aligned along the longitudinal axis of the wakesurf board, and a second strap having a first end comprising a first matrix of holes therethrough, a second end comprising a second matrix of holes therethrough, and a longitudinal axis, wherein the second strap is configured to be removably interconnected with the second pair of female threaded inserts with its longitudinal axis at an angle offset from the longitudinal axis of the wakesurf board.

A reconfigurable wakesurf binding apparatus and system is provided. In certain embodiments, the wakesurf binding may comprise a top surface of a wakesurf board having a longitudinal axis, a first pair of female threaded inserts in the top surface aligned along a first axis angularly offset from the longitudinal axis of the wakesurf board by a first offset angle, a first strap having a first end comprising a first matrix of holes therethrough, a second end comprising a second matrix of holes therethrough, and a longitudinal axis, wherein the first strap is configured to be removably interconnected with the first pair of female threaded inserts with its longitudinal axis at an angle offset from the first axis, a second pair of female threaded inserts in the top surface aligned along the longitudinal axis of the wakesurf board, and a second strap having a first end comprising a first matrix of holes therethrough, a second end comprising a second matrix of holes therethrough, and a longitudinal axis, wherein the second strap is configured to be removably interconnected with the second pair of female threaded inserts with its longitudinal axis at an angle offset from the longitudinal axis of the wakesurf board.

A self-propelled hydrofoil surfboard includes a surfboard having a mast mounted to the lower surface of the surfboard, a selectively controllable thruster mounted at a lower end of the mast, a controller and a battery to supply power to the controller and thruster, the controller cooperating with a remote controller adapted to give control inputs to the controller and to be carried when in use by a rider, navigation lights mounted around at least a portion of the circumferential edge of the surfboard, and wherein the mast may have an adjustable length.

A self-propelled hydrofoil surfboard includes a surfboard having a mast mounted to the lower surface of the surfboard, a selectively controllable thruster mounted at a lower end of the mast, a controller and a battery to supply power to the controller and thruster, the controller cooperating with a remote controller adapted to give control inputs to the controller and to be carried when in use by a rider, navigation lights mounted around at least a portion of the circumferential edge of the surfboard, and wherein the mast may have an adjustable length.

A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

A watersports boat is equipped with a trimmable drive used to generate a virtual ballast effect. Turbulence experienced by a wake rider on startup is reduced by automatically varying the drive orientation as the watersports boat comes up to speed. A pair of water channelers are located at the stern. One of the water channelers is deployed below the running surface to redirect water across centerline and improve wake shape on the selected side.

A water ski fin comprising a planar body and a plurality of chevrons. The planar body may have a top end, a convex leading edge, and a trailing edge. The mounting elements on the top end may mount the fin on a tail of a water ski. A bottom may connect the leading edge to the trailing edge. A plurality of chevrons may have alternating crests and troughs positioned in the trailing edge.

A water ski fin comprising a planar body and a plurality of chevrons. The planar body may have a top end, a convex leading edge, and a trailing edge. The mounting elements on the top end may mount the fin on a tail of a water ski. A bottom may connect the leading edge to the trailing edge. A plurality of chevrons may have alternating crests and troughs positioned in the trailing edge.