Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having fluid channeling or entrapping configuration
Patent
1981-12-14
1983-10-04
Blix, Trygve M.
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having fluid channeling or entrapping configuration
114288, 114271, 440 69, 440 37, B63B 138
Patent
active
044072155
ABSTRACT:
A fan-powered water vessel in which an essentially flat-bottomed main hull portion is provided with a central friction reducing, relatively shallow tunnel whereby air forced into the forward portions thereof serves to form an air film between the major parts of the bottom of the boat and the supporting water surface. In addition, a pair of relatively narrow secondary tunnels are provided on either side of the central tunnel and are of a depth substantially greater than that of the central tunnel so as to confine the friction reducing air film between said secondary tunnels. This construction enables the boat to be utilized both on relatively calm inland waters and swamps as well as in choppy waters. An elevated bow provided at the forward section of the main hull divides and spreads waves to further enhance efficiency. The rear of the hull includes a power supply support housing including an air fan. In one preferred example, a trailer hauling hitch is provided at the bow section in combination with a pair of trailer wheels vertically movable into an operable position and supported in conjunction with the power housing.
REFERENCES:
patent: 1812265 (1931-06-01), Hone
patent: 2564587 (1951-08-01), Sunstedt
patent: 3191572 (1965-06-01), Wilson
patent: 3203389 (1965-08-01), Cale
patent: 3599256 (1971-08-01), Carroll
patent: 4237810 (1980-12-01), Westfall
patent: 4260315 (1981-04-01), Bouffard
patent: 4284027 (1981-08-01), Montez
Bartz C. T.
Blix Trygve M.
Doherty Robert J.
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