| 摘要 |
A bicycle-type marine vessel including a long, narrow hull unstable in nature, that keeps balance on the water by means of a front rotating keel-propeller system that plays the role of a front wheel on a ground bicycle. The forward location of the keel and propeller permit the operator, sitting on a ground bike type frame, to balance and direct the vessel, while in motion, by means of the handlebar and body leaning. Forward impulse is achieved by leg actuated pedals that transmit power to the propeller placed at the back of the forward turning keel. The balancing force comes from the course change of the hull given by the new keel and propeller direction.
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