A universal receiver for transporting a watercraft may include a first knuckle receiver attachable to the watercraft, an adapter repositionable within the knuckle receiver, and a wheeled support leg. Typically, the adapter is detachable from the support leg and includes a ridge to mate with a corresponding channel and recessed cavity in the receiver. The result is a wheel assembly to repositionably secure the support leg between a first position and at least a second position that is generally angular offset from the first position, thereby securing the leg and preventing rotation about the watercraft.

A universal receiver for transporting a watercraft may include a first knuckle receiver attachable to the watercraft, an adapter repositionable within the knuckle receiver, and a wheeled support leg. Typically, the adapter is detachable from the support leg and includes a ridge to mate with a corresponding channel and recessed cavity in the receiver. The result is a wheel assembly to repositionably secure the support leg between a first position and at least a second position that is generally angular offset from the first position, thereby securing the leg and preventing rotation about the watercraft.

An oar for use in propelling a watercraft through water includes a first circular paddle portion. An edge hole extends into an edge of the first paddle portion. The oar also includes a second circular paddle portion, with an edge hole extending into an edge of the second paddle portion. The oar also includes a handle portion having a first end and a second end opposite the first end. The first paddle portion edge hole and the handle portion first end are structured so that the handle portion first end is detachably securable in the first paddle portion edge hole. The second paddle portion edge hole and the handle portion second end are structured so that the handle portion second end is detachably securable in the second paddle portion edge hole.

A boat is fitted with retractable wheels which can pivot between an extended land position and a retracted water position. A slot is formed in the hull of the boat. A housing sealing engages about the slot to prevent water entering the boat through the slot. The housing supports a pivot. An arm member is connected to the pivot and a wheel is connected to the arm member. The arm member can pivot through the slot between the wheel retracted and wheel extended positions.

A boat is fitted with retractable wheels which can pivot between an extended land position and a retracted water position. A slot is formed in the hull of the boat. A housing sealing engages about the slot to prevent water entering the boat through the slot. The housing supports a pivot. An arm member is connected to the pivot and a wheel is connected to the arm member. The arm member can pivot through the slot between the wheel retracted and wheel extended positions.

A wheel suspension and retraction apparatus (2) for an amphibious vehicle comprises a suspension unit having transverse upper and lower suspension links (4, 8); spring and damper unit (12), and suspension upright (6) supporting wheel (10), and pivotally connected to outboard ends of links (4 and 8). The wheel retraction mechanism has a retraction linkage (14, 16, 18), pivotably connectable to the vehicle, and an actuator (38) for moving the wheel suspension between a protracted position for land use and a retracted position for use on water. The retraction mechanism supports the suspension unit spaced apart transversely from the vehicle. Tie bar (16) is connected to upper retraction arm (14) at an intermediate location (30) to ensure a large angle of tilt on retraction, to ensure that the wheel is retracted above hull line (156). The wheel suspension does not have to be compressed on retraction.

A wheel suspension and retraction apparatus (2) for an amphibious vehicle comprises a suspension unit having transverse upper and lower suspension links (4, 8); spring and damper unit (12), and suspension upright (6) supporting wheel (10), and pivotally connected to outboard ends of links (4 and 8). The wheel retraction mechanism has a retraction linkage (14, 16, 18), pivotably connectable to the vehicle, and an actuator (38) for moving the wheel suspension between a protracted position for land use and a retracted position for use on water. The retraction mechanism supports the suspension unit spaced apart transversely from the vehicle. Tie bar (16) is connected to upper retraction arm (14) at an intermediate location (30) to ensure a large angle of tilt on retraction, to ensure that the wheel is retracted above hull line (156). The wheel suspension does not have to be compressed on retraction.

A water mat for a boat and a boat. The boat may be a pontoon boat. The water mat may include a cut-out. The cut-out may be formed in a forward side of the water mat, with the forward side of the water mat is connected to the stern of the boat such that the outboard motor is positioned in the cut-out of the water mat. A flexible connecting sheet, that is configured to connect the water mat with the boat, may be attached to a connection side of the water mat and extend along the connection side of the water mat.

A water mat for a boat and a boat. The boat may be a pontoon boat. The water mat may include a cut-out. The cut-out may be formed in a forward side of the water mat, with the forward side of the water mat is connected to the stern of the boat such that the outboard motor is positioned in the cut-out of the water mat. A flexible connecting sheet, that is configured to connect the water mat with the boat, may be attached to a connection side of the water mat and extend along the connection side of the water mat.

An apparatus and methods according to the present invention provides a human powered catamaran-styled watercraft and methods of configuring and operating the watercraft. The watercraft generally comprises at least one hull in communication with a folding collapsible frame, wherein in the frame comprises a center rack pivotally joining hulls of hull sets to provide for common pivoting of the hulls during articulation of the watercraft, thereby the hulls and frame are in further communication through a at least one pivot pad which provides for slidable pivoting of the hulls during articulation of the watercraft. A method of folding and reversibly extending the watercraft to provide for optimized storage is provided. A method of operation of the watercraft to provide for articulation of the watercraft is provided.