Air cushion vehicle with high stability skirt system
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United States of America Patent
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Aug 6, 1996
Grant Date -
N/A
app pub date -
Apr 7, 1995
filing date -
Apr 7, 1995
priority date (Note) -
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Abstract
An air cushion vehicle having a low drag, high stability non-scooping skirt system including closed loop finger sleeves. An enlarged bag combines to provide a more responsive skirt profile. The sleeves of this invention are trimmed at an angle to the supporting surface, thereby exposing the sleeve opening to the air cushion. The sleeve is maintained at the air cushion pressure unless the vehicle rolls enough to submerge and close the sleeve opening. A pressure build up occurs as the opening is submerged and a significantly greater differential pressure is obtained with an enhanced restoring moment. The interior wall of the sleeve that faces the air cushion is angled slightly inward on the bow and side seals to allow momentary collapse of the sleeve and release of an extraordinary force of a rough sea. In addition the effective air cushion area, the platform of the vehicle, is extended to its maximum to provide greater stability.
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