RECOVERING CAPSIZED WATERCRAFT INCORPORATING RAPID FILLING AND EMPTYING BALLAST SYSTEMS
A craft including a body having a front end, a rear end, two sides miming between said ends, and an axis running generally from the rear end to the front end; and a water displacement system operable to displace water to propel the craft across water and to displace water to cause the craft to rotat...
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Sprache: | eng |
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