A recreational sport boat includes a hull, having starboard and port sides and a transom, and a wake-modifying devices positioned aft of the transom. The wake-modifying device includes a plate-like member and at least one downturned surface. The wake-modifying device is pivotable between a non-deployed position and a deployed position about a pivot axis. When a wake-modifying device is in the deployed position, the downturned surface is lower than it is in the non-deployed position so as to be able to modify the boat's wake.

An adjustable surf wake system can enhance a wake formed by a watercraft travelling through water. A rider control device can enable a rider to control the wake of the watercraft while riding the wake, such as for wake surfing. The rider can adjust the speed of the watercraft, can adjust the height of the wake, and/or can change the watercraft between a surf-left configuration and a surf-right configuration. The rider control device can include a position sensor. A drone can position a camera based on the position sensor of the rider control device for filming the rider.

A wave-generating watercraft includes a craft body having an installation space receiving a wave-generating unit. A telescopic drive is mounted within the installation space and is connected to a driven unit. A wave-forming fin is connected to the driven unit and is driven by the telescopic drive to move between extended and retracted positions. The telescopic drive is aligned with a front-rear direction of the craft body and is stretchable and retractable along the front-rear direction. The wave-forming fin protrudes from the installation space when the wave-forming fin moves to the extended position and is received in the installation space when the wave-forming fin retracts.

A wave-generating watercraft includes a craft body having an installation space receiving a wave-generating unit. A telescopic drive is mounted within the installation space and is connected to a driven unit. A wave-forming fin is connected to the driven unit and is driven by the telescopic drive to move between extended and retracted positions. The telescopic drive is aligned with a front-rear direction of the craft body and is stretchable and retractable along the front-rear direction. The wave-forming fin protrudes from the installation space when the wave-forming fin moves to the extended position and is received in the installation space when the wave-forming fin retracts.

A water flow deflection device attached to a side of a watercraft to enhance the watercraft's wake. The device having a narrow, elongated base with two ends and a base width, the base aligned along the side of the watercraft when the device is attached to the watercraft. A deflector attached to the base between the two ends and having a face spanning between a leading end and an opposing end, the leading end extending outwardly from the base. The deflector face having a surface area configured to deflect water and a deflector width greater than the base width. The base removably attachable to the watercraft by a plurality of suction cup assemblies, wherein a greater number of suction cup assemblies located between the first end and the leading end of the deflector than between the second end and the leading end of the deflector.

A water flow deflection device attached to a side of a watercraft to enhance the watercraft's wake. The device having a narrow, elongated base with two ends and a base width, the base aligned along the side of the watercraft when the device is attached to the watercraft. A deflector attached to the base between the two ends and having a face spanning between a leading end and an opposing end, the leading end extending outwardly from the base. The deflector face having a surface area configured to deflect water and a deflector width greater than the base width. The base removably attachable to the watercraft by a plurality of suction cup assemblies, wherein a greater number of suction cup assemblies located between the first end and the leading end of the deflector than between the second end and the leading end of the deflector.

A boat includes at least three trim devices positioned aft of the boat's transom. To improve the boat's ability to get on place, each trim device is initially positioned to a deployed position. The speed of the boat is then determined as the boat gains speed. When the speed of the boat exceeds a first predetermined threshold, the first trim device is moved from the deployed position to a non-deployed position. When the speed of the boat exceeds a second predetermined threshold, the second trim device is moved from the deployed position to a non-deployed position. When the speed of the boat exceeds a third predetermined threshold, the third trim device is moved from the deployed position to a non-deployed position. At least one of the first, second, and third predetermined thresholds is different from the other two of the first, second, and third predetermined thresholds.

A recreational sport boat includes a hull, having starboard and port sides and a transom, and a wake-modifying devices positioned aft of the transom. The wake-modifying device includes a plate-like member and at least one downturned surface. The wake-modifying device is pivotable between a non-deployed position and a deployed position about a pivot axis. When a wake-modifying device is in the deployed position, the downturned surface is lower than it is in the non-deployed position so as to be able to modify the boat's wake.

A water flow deflection device attached to a side of a watercraft to enhance the watercraft's wake. The device having a narrow, elongated base with two ends and a base width, the base aligned along the side of the watercraft when the device is attached to the watercraft. A deflector attached to the base between the two ends and having a face spanning between a leading end and an opposing end, the leading end extending outwardly from the base. The deflector face having a surface area configured to deflect water and a deflector width greater than the base width. The base removably attachable to the watercraft by a plurality of suction cup assemblies, wherein a greater number of suction cup assemblies located between the first end and the leading end of the deflector than between the second end and the leading end of the deflector.

A water flow deflection device to enhance a watercraft's wake. An elongated base with two ends is aligned along the side of the watercraft. The base has a deflector interface with concentrically arranged teeth. A deflector assembly is operably attached to the base between the two ends, with a face that deflects water. The deflector's leading end is closer to the watercraft than the trailing end. The deflector assembly has a base interface with concentrically arranged teeth. Two or more suction cup assemblies attach to the elongated base to provide removable attachment, with one attached between a first end and the deflector interface and another attached between a second end and the deflector interface. The concentrically arranged teeth of the deflector interface and the base interface operably interlock, allowing rotational adjustment of the deflector relative to the base.