| 摘要 |
An air cushion vehicle including at least one air cushion for support or guidance purposes in which the cushion is defined at least in part by walls which incorporate moveable edge members. The edge members are configured so that the pressure within the cushion, which may be negative or positive, tends to move the members away from a surface, usually a prepared track, on which the cushion is sustained, thus increasing air leakage into or from the cushion and decreasing the pressure differential across the cushion wall until the force on the wall is balanced by an opposing force independently applied to the edge member and determining the magnitude of said pressure differential.
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