A floatation device may include a bow section and a tail section pivotally connected to the bow section by a kingpin assembly. The kingpin assembly may be configured to include a positive kingpin inclination angle or a negative inclination angle that determine the yaw direction of the floatation device. A user may control the tilt or roll of the floatation device to offset a yaw direction and maintain a straight line tracking course.

A hull assembly is configured to transport a human user in water. The hull assembly includes a bow, having a bow concave portion. A port hull is joined to the bow. The port hull is adopted to accommodate a first foot of a human user. A starboard hull is joined to the bow and offset from the port hull by the bow concave portion. The starboard hull is adapted to accommodate a second foot of the human user. When a first port hull weight varies from a second port hull weight, the first port hull vertically deflects relative to the second port hull to increase the balance and stability of the human user and increase maneuverability of the vessel.

An electrically motorized watercraft may include a hull module and a driveline system. The driveline system may include an electric power module and a driveline module. The driveline module may be arranged at an underside of the hull module.

An electrically motorized watercraft may include a hull module and a driveline system. The driveline system may include an electric power module and a driveline module. The driveline module may be arranged at an underside of the hull module.

A standup paddleboard outrigger includes a long, narrow, lightweight displacement hull and a pair of outrigger pontoons mounted to a bridge. The two parts disengage for easy storage and transport. The hull has a platform to stand on. Paddling with a long handled paddle propels the craft through the water. The outriggers provide lateral stability/support and actuate the rudder in order to make turns. When a person stands on the platform and shifts body weight, the rudder will rotate to the right and the craft will turn to the right. The more weight that is shifted, the greater the turning action. The responsiveness to the shift of body weight can be adjustable for personal preference either firmer or more flexible, as is the turning response of the rudder fine or coarse turning.

An article with at least two partially or fully separable portions that are configured to be securely fastened together to assemble the completed article. There are a plurality of releasable fastening mechanism, each fastening mechanism located in part in each of two adjoining portions that are configured to be joined together.

An article with at least two partially or fully separable portions that are configured to be securely fastened together to assemble the completed article. There are a plurality of releasable fastening mechanism, each fastening mechanism located in part in each of two adjoining portions that are configured to be joined together.

In one aspect of the invention, there is provided a modular electrically motorized watercraft (10), the watercraft comprising a hull module (20) and a driveline system (60). The driveline system (60) comprises an electric power module (50) and a driveline module (30). The driveline module (30) is configured to be arranged at an underside of the hull module (20).

In one aspect of the invention, there is provided a modular electrically motorized watercraft (10), the watercraft comprising a hull module (20) and a driveline system (60). The driveline system (60) comprises an electric power module (50) and a driveline module (30). The driveline module (30) is configured to be arranged at an underside of the hull module (20).

A kiteboard includes a base, a front extension and/or a back extension. The base includes a top face and a bottom face and an outer edge face. The outer edge face is extending in a circumferential direction along an outer contour of the top face and the bottom face and includes a first mechanical interface. The front extension and/or the back extension include a top face and a bottom face and an inner edge face. The inner edge face extends between the top face and the bottom face along an inner contour and corresponds at least partially to the outer contour of the base. The inner edge face further includes a second mechanical interface, such that in an assembled position the first and the second mechanical inter-face are engaged with each other to position the front extension and/or the back extension with respect to the base.