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Flying
fish II shown opposite, is also propelled by a high efficiency propeller.
It uses an upright cycling position and inflated pontoons for its catamaran structure
to minimize weight. The main hydrofoil is straight, and the pusher propeller at its center is chain driven. Fly-height is maintained by the surface
follower coupled to a flap on the front wing.
The vehicle 'takes
off' at 6 knots and has a top speed of about 18 knots. In a standing start sprint
over 2,000 m, Hegg set a time of 5 min 48 sec, about one minute faster
than the single rowing shell record. |
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