Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having airfoil
Patent
1978-03-27
1980-12-09
Basinger, Sherman D.
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having airfoil
244 46, 244 48, 244 91, B63B 132
Patent
active
042378117
ABSTRACT:
A water ski boat having separate air foils attached to the forward and aft portions of the boat arranged to exert more lift on the aft portion than on the forward portion of the boat. Specifically, a water ski boat is disclosed having an elongated air foil, pivotally attached to the forward portion of the boat and a stacked pair of elongated airfoils pivotally attached to the aft portion of the boat. The angle of attack of each of the three airfoils can be independently adjusted. In addition, the aft pair of stacked airfoils as an assembly can be raised, lowered, and adjusted with respect to its angle of attack. In a further embodiment, vertical stabilization fins are provided for the ends of the aft airfoils and the ends of the forward airfoils. All of the airfoils are removably attached to the water ski boat so that the boat can be readily configured with or without airfoils.
REFERENCES:
patent: 1015568 (1912-01-01), Langille
patent: 1041489 (1912-10-01), Lake
patent: 1724110 (1929-08-01), Reid
patent: 1776316 (1930-09-01), Horeth
patent: 1846336 (1932-02-01), Icre
patent: 1853125 (1932-04-01), Hitt
patent: 1875190 (1932-08-01), Collins
patent: 1889927 (1932-12-01), MacCallum
patent: 2118127 (1938-05-01), Wulle
patent: 2124497 (1938-07-01), Slauson
patent: 2706959 (1955-04-01), Downs
patent: 3135482 (1964-06-01), Girard
patent: 3390655 (1968-07-01), Quady
patent: 3415566 (1968-12-01), Kerrigan
patent: 3648640 (1972-03-01), Granger
patent: 3768429 (1973-10-01), Greer
patent: 3786774 (1974-01-01), Gabel
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