B - Operations – Transporting – 60 – V
Patent
B - Operations, Transporting
60
V
103/33, 305/4, 1
B60V 1/14 (2006.01) B60V 1/00 (2006.01)
Patent
CA 1056879
AIR CUSHION VEHICLE ABSTRACT OF THE DISCLOSURE A vehicle, primarily a marine vessel, but also adaptable for travel over snow or ice, which is supported and propelled by air flow through a channel in the underside of the body. An impeller in a duct in the forward end of the vehicle provides the air flow, which can be deflected rearwardly, downwardly and forwardly and varied laterally for full control of the vehicle. The air flow channel is divided into a central channel and high speed side channels by longitudinal curtains, the side channels conducting air to steering vanes and rudders at the rear of the body. Trim rudders also extend across the rear of the channel to control lift and roll at the rear of the vehicle. In one form, the vehicle has an inflatable bow to seal the forward end of the channel at low speed, or to open the channel to ram air at high speed. BACKGROUND OF THE INVENTION Air cushion vehicles are generally of two basic types, one type having a flexible or partially flexible skirt to contain lifting air, which leaks out under the skirt and can be controlled to some extent for balancing and steering. Usually the propulsion and directional control are obtained by separate means, such as propellers and rudders, on top of the vehicle. The other basic type has rigid side walls surrounding an air chamber, the walls being immersed in or in sliding contact with the supporting surface to minimize air leakage. The supporting air can be used for propulsion, since the energy is well contained, but additional propulsion means is often used. -1-
280954
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