An adjustable surf wake system enhances a wake formed by a watercraft travelling through water. The system may include a flap for deflecting water traveling past the stern of the watercraft, and/or a positioner operably connected to the flap for positioning the flap relative to a longitudinal axis of the watercraft between a neutral position and an outward position. Positioning a port flap in its extended position enhances a starboard surf wake, and positioning the starboard flap in its extended position enhances a port surf wake. A wake modifying system for modifying a wake produced by a watercraft traveling through water may include a rudder pivotally mounted to the watercraft for steering the watercraft, a fin pivotally mounted to the watercraft substantially along a centerline of the watercraft and forward the rudder, wherein the fin pivots about an upright axis to modify the wake produced by the watercraft traveling through the water, an actuator mounted within the watercraft and operably coupled to the fin for pivoting the fin relative to the centerline, and a controller mounted on the watercraft allowing an operator to control the actuator and selectively pivot the fin to a desired angle θd relative to the centerline.

A system and method for controlling a deployable device on a boat. The deployable device is movable by a drive mechanism. The method includes receiving a command to deploy the deployable device to a desired position; obtaining a controlling parameter for the drive mechanism based on the desired position; driving the drive mechanism to move the deployable device based on the controlling parameter; receiving, from a position sensor, an output corresponding to a real-time position of one of the deployable device and the drive mechanism; and driving the drive mechanism to move the deployable device to a final position based on the output of the position sensor and the desired position. The system comprises a controller including a memory and a processor being configured to perform the method.

A water flow deflection device configured to be attached to a side of a watercraft for wake enhancement, the water flow deflection device having a water flow deflector having a stationary portion operably connected to a foldable portion, the foldable portion capable of being configured between a fully extended position and a folded position with intermediate folding positions there between, whereby the foldable portion in the folded position is configured to facilitate storage of the device. The water flow deflection device also includes a frame connected to the stationary portion of the water flow deflector, the frame including a base, at least one extension arm, and two or more suction cups for attaching the water flow deflection device to the side of the boat.

A water flow deflection device configured to be attached to a side of a watercraft for wake enhancement, the water flow deflection device having a water flow deflector having a stationary portion operably connected to a foldable portion, the foldable portion capable of being configured between a fully extended position and a folded position with intermediate folding positions there between, whereby the foldable portion in the folded position is configured to facilitate storage of the device. The water flow deflection device also includes a frame connected to the stationary portion of the water flow deflector, the frame including a base, at least one extension arm, and two or more suction cups for attaching the water flow deflection device to the side of the boat.

A foil displacement system includes one or more foils that can be deployed and stowed. When deployed, each foil can exert downforce or uplift depending on its orientation. For example, each foil may be positioned to have an angle of attack that creates a downward force effectively transmitted to the hull to pull the hull deeper within the water to, for example, create a larger wake. Use of the foil displacement system can enhance or replace the use of a ballast tank system, can be integrated into a new boat or retrofitted to existing boats, can be electronically or manually positioned, can enhance activities such as wake surfing, wake boarding, water skiing or other similar or related water sports.

A foil displacement system includes one or more foils that can be deployed and stowed. When deployed, each foil can exert downforce or uplift depending on its orientation. For example, each foil may be positioned to have an angle of attack that creates a downward force effectively transmitted to the hull to pull the hull deeper within the water to, for example, create a larger wake. Use of the foil displacement system can enhance or replace the use of a ballast tank system, can be integrated into a new boat or retrofitted to existing boats, can be electronically or manually positioned, can enhance activities such as wake surfing, wake boarding, water skiing or other similar or related water sports.

A personal watercraft with cargo-carrying surface and an anchor rail mounted on a surface of the personal watercraft. The anchor rail being adjacent to the cargo-carrying surface and exposed to an environment. The anchor rail can include an outwardly facing surface exposed to the environment, and the anchor rail is secured to the personal watercraft in such a manner that the outwardly facing surface is recessed relative to the cargo-carrying surface to form a recess or that the outwardly facing surface is flush with the cargo-carrying surface.

A personal watercraft with cargo-carrying surface and an anchor rail mounted on a surface of the personal watercraft. The anchor rail being adjacent to the cargo-carrying surface and exposed to an environment. The anchor rail can include an outwardly facing surface exposed to the environment, and the anchor rail is secured to the personal watercraft in such a manner that the outwardly facing surface is recessed relative to the cargo-carrying surface to form a recess or that the outwardly facing surface is flush with the cargo-carrying surface.

A water flow deflection device configured to be attached to a side of a boat for boat wake enhancement is disclosed. The water flow deflection device includes a frame which includes a base, an extension arm, and two or more suction cups for attaching the water flow deflection device to the side of the boat. The water flow deflection device also includes a water flow deflector attached to the frame and includes an enlarged surface area aligned away from the extension arm and configured to deflect water. The deflector having two sections that are movable relative to each other such that the surface area is adjustable. The water flow deflection device also includes an adjustable support that extends between and connects the deflector to the extension, the support configured to adjust an angle of the deflector relative to the side of the boat.

Wakeboat hull control systems are provided that can include a first accelerometer operatively associated with the hull of the wakeboat to measure the acceleration of the hull along a first axis; a second accelerometer operatively associated with the hull of the wakeboat to measure the acceleration of the hull along a second axis, the first axis being non-parallel to the second axis; and processing circuitry calculating the rotation of the hull of the wakeboat about a third axis based on the acquired measurements. Wakeboat hull control methods are provided that can include using the processing circuitry to calculate the rotation of the hull of the wakeboat about a third axis based on the acquired measurements.