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Human Power and Propulsion |
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The use of a bicycle power train in conjunction with a large air propeller also became the favored mode of power transfer in the record setting Decavitator hydrofoils. The photograph and diagram show these components. The air propeller has a 3 m diameter and provides the required thrust for high speed sprints. At low speeds the craft is supported on the two 5.2 m pontoons. After take-off the two front foils (with surface followers to control fly-height) and the straight main wing (an early V-foil is shown in the photograph) support the craft. The two front foils provide roll-stability, and in version IV the main wing pivots to retract the large area take-off surface and submerge the lower area high speed foil. |
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From:
Decavitator: Human Powered Hydrofoil |
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