Methods and systems described herein can assist a user when loading a watercraft onto a trailer (e.g., at a boat ramp). For example, position data generated by sensor(s) coupled to the watercraft and/or trailer can cause one or more propulsion devices associated with the watercraft to automatically (e.g., without user intervention) position the watercraft onto the trailer, for example, by controlling the power and/or thrust direction of the propulsion device(s).

The present invention relates generally to the field of boat transports or carriers which may be mounted to a sidewall of the boat by a bracket. The carrier has a frame and a wheel assembly that has a horizontal cross member, a first vertical fork, a second vertical fork, a mounting bracket and a wheel. An individual may place two boat-mounted brackets on to opposing sides of a boat, so that the user may easily wheel the boat to the desired location. Once at the location, the user can then remove each wheel assembly and use the boat as normal.

The present invention relates generally to the field of boat transports or carriers which may be mounted to a sidewall of the boat by a bracket. The carrier has a frame and a wheel assembly that has a horizontal cross member, a first vertical fork, a second vertical fork, a mounting bracket and a wheel. An individual may place two boat-mounted brackets on to opposing sides of a boat, so that the user may easily wheel the boat to the desired location. Once at the location, the user can then remove each wheel assembly and use the boat as normal.

An improved skid plate for kayaks and/or boats that can be removably attached to the hull of a kayak or boat via adjustable straps wrapping around the body and hull of the kayak or boat.

An improved skid plate for kayaks and/or boats that can be removably attached to the hull of a kayak or boat via adjustable straps wrapping around the body and hull of the kayak or boat.

The present invention discloses a wheel structure and a kayak using the same, relating to the field of ships. The wheel structure mainly comprises wheel bodies, a shaft and a support rod, wherein the connecting piece is arranged at one end of the support rod opposite to the wheel body, a bidirectional ratchet wheel mechanism is arranged between the shaft and the support rod, the bidirectional ratchet wheel mechanism can selectively control the shaft through adjustment, to make same rotate only in one direction, and then achieve the purpose of controlling the rotation direction of the wheels; the wheel structure is mounted on the kayak, when being loaded, the kayak is effortlessly pushed under the action of wheels, and the rotation direction of the wheels is limited by the bidirectional ratchet mechanism so that the wheels can only roll towards the vehicle, therefore, the pushing person does not need to powerfully offset the retreating force of the wheels, that is, it is easier and effortless to push the kayak to be loaded.

The present invention discloses a wheel structure and a kayak using the same, relating to the field of ships. The wheel structure mainly comprises wheel bodies, a shaft and a support rod, wherein the connecting piece is arranged at one end of the support rod opposite to the wheel body, a bidirectional ratchet wheel mechanism is arranged between the shaft and the support rod, the bidirectional ratchet wheel mechanism can selectively control the shaft through adjustment, to make same rotate only in one direction, and then achieve the purpose of controlling the rotation direction of the wheels; the wheel structure is mounted on the kayak, when being loaded, the kayak is effortlessly pushed under the action of wheels, and the rotation direction of the wheels is limited by the bidirectional ratchet mechanism so that the wheels can only roll towards the vehicle, therefore, the pushing person does not need to powerfully offset the retreating force of the wheels, that is, it is easier and effortless to push the kayak to be loaded.

A dolly for a water vessel is an apparatus that facilitates the transportation of a water vessel on land. The apparatus serves as a universal attachment for water vessels. The apparatus includes left brace assembly, a right brace assembly, a connector bar, a first roller assembly, and a second roller assembly. The left brace assembly and the right brace assembly attach onto a transom of a water vessel. The left brace assembly and the right brace assembly may be adjusted to accommodate transoms of varying heights. The connector bar mounts the left brace assembly with the right brace assembly, thereby positioning the first roller assembly and the second roller assembly. The first roller assembly and the second roller assembly uplift the water vessel and rolls the water vessel across the ground. The apparatus further includes a cradle mechanism which further supports a paddleboard or a kayak.

A dolly for a water vessel is an apparatus that facilitates the transportation of a water vessel on land. The apparatus serves as a universal attachment for water vessels. The apparatus includes left brace assembly, a right brace assembly, a connector bar, a first roller assembly, and a second roller assembly. The left brace assembly and the right brace assembly attach onto a transom of a water vessel. The left brace assembly and the right brace assembly may be adjusted to accommodate transoms of varying heights. The connector bar mounts the left brace assembly with the right brace assembly, thereby positioning the first roller assembly and the second roller assembly. The first roller assembly and the second roller assembly uplift the water vessel and rolls the water vessel across the ground. The apparatus further includes a cradle mechanism which further supports a paddleboard or a kayak.

Hull with variable geometry for a vessel (11), comprising a completely immersed part (12), configured to provide part of the buoyancy thrust and integral with an emerged part (13) of the hull by means of one or more uprights (14), and one or more immersed wing surfaces (15) which, in a situation in which the vessel travels at a sufficiently high speed, are configured to provide the remaining part of the vertical thrust required to keep the vessel (11) above the surface of the water at a predetermined height; the hull comprises one or more supports (16a, 16b, 16c) connected to the wing surfaces (15) and associated with floating elements (17a, 17b, 17c) which are mobile with respect to the completely immersed part (12); the floating elements (17a, 17b, 17c) are fixed to the supports (16a, 16b, 16c) or mobile with respect to the supports (16a, 16b, 16c), therefore the floating elements (17a, 17b, 17c) are substantially cooperating with the completely immersed part (12) and with the wing surfaces (15); the wing surfaces (15) are configured to move with respect to the completely immersed part (12) or to remain fixed with respect thereto and the floating elements (17a, 17b, 17c) are configured to increase their immersion as the speed of the vessel decreases, and therefore provide the vertical thrust to maintain or adjust the distance of the vessel from the water in a manner that is optimal and functional for the use of the vessel, even at reduced speeds or when the vessel is stationary.