Patent ID: 8082871

Claim:
An air inflatable watercraft, having a cockpit, a bottom area forming part of said cockpit having a through opening therein, a substantially rigid well with open top and bottom and vertical sidewalls defining a longitudinal passage therethrough, said well being releasably received in said through opening and supporting a foot operated propulsion mechanism therein for operation of said propulsion mechanism from said cockpit to propel the watercraft, said propulsion mechanism having propulsion means extending below the water line comprising a pair of flexible flappers each adapted to oscillate through an arcuate path in a generally transverse direction with respect to the central longitudinal dimension of the watercraft about an axis which is at or below the bottom of said watercraft and each carried by a support which rotates about a common longitudinal shaft, said flappers being adapted to simultaneously reverse direction at opposite ends of said arcuate path.