Abstract: A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.

Abstract: A watercraft is described herein. The watercraft comprises a body including an outer surface having at least one recess extending generally inward. The watercraft also comprises a cassette disposed at least partially within the at least one recess, the cassette housing a drive system including at least one electric motor and at least one impeller coupled to the at least one electric motor. The cassette further comprising a surface having a water intake and a water exhaust port, and wherein the cassette is disposed within the at least one recess such that the base surface of the cassette substantially matches the adjacent outer surface of the body around the recess to form a smooth body outer surface having water intake and exhaust ports therein.

Abstract: Watercraft and propulsion systems therefor are described herein. In one example, a watercraft includes a hull configured to float in water and a cockpit configured to carry at least one passenger. The watercraft further includes a fishtail propulsion system that includes a pivot body pivotally coupled to a stern of the hull, the pivot body configured to pivot about an axis, the pivot body further comprising a recess configured to receive a pump system, a flexible paddle coupled to the pivot body such that the paddle pivots about the axis with the pivot body, and a pedal system comprising pedals operably coupled to the pivot body, wherein the pedals are configured to be actuated to cause the pivot body and the paddle to pivot about the axis, thereby causing the paddle to move in a side-to-side manner.

Abstract: A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.

Abstract: A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.

Abstract: A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.

Abstract: A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.