Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Patent
1993-05-19
1995-11-28
Swinehart, Edwin L.
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having hydrofoil
114280, 114274, B63B 130
Patent
active
054698014
ABSTRACT:
A hydrofoil craft has a hull supported above a water surface by a foil connected to the hull by means of a support arm. In accordance with one form of the invention, the support arm enables the foil to move up and down with respect to the hull in concert with upgusts and downgusts of water surrounding the foil so as to maintain the hull at an approximately constant elevation. In accordance with another form of the invention, the support arm is supported by the hull for pivoting about a longitudinal axis extending in substantially the fore and aft direction of the hull. When rolling forces act on the foil, the support arm can pivot about the axis from a vertical position in response to the rolling forces while enabling the hull to remain substantially level.
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William M. Ellsworth, AIAA/SNAME Advanced Marine Vehicles Conf., AIAA/SNAME Advanced Marine Vehicles Conf., AIAA Paper #74-306, San Diego, Calif. 1974.
Dynafoils, Inc.
Swinehart Edwin L.
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