Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Patent
1987-04-10
1987-12-08
Nase, Jeffrey V.
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having hydrofoil
114275, 114280, 114281, B63B 3500
Patent
active
047111950
ABSTRACT:
A hydrofoil apparatus for attachment to a marine vessel having a first pivot means for positioning the rotational axis of a gooseneck shaft parallel to the yaw axis of the hull and a trailing load support arm having a forward end coupled to the gooseneck. A planing surface sensor or planing foil rides on the water surface. The planing surface provides a hydrodynamic force to hold the planing surface sensor on surface as the vessel moves with forward velocity. An elongated body member is pivotally coupled to rotate on a first pitch axis with respect to said planing surface sensor. The elongated body member is pivotally coupled to the trailing load support at its aft end. A vertical fin is coupled to support the elongated body member. The fin maintains the planing surface sensor forward of said second pitch axis. A lifting foil raises the bow of said marine vessel by provide a lifting force via the fin.
REFERENCES:
patent: 2139303 (1938-12-01), Grunberg
patent: 2387907 (1945-10-01), Hook
patent: 2603179 (1952-07-01), Gardiner
patent: 2773467 (1956-12-01), Bailey
patent: 3112725 (1963-12-01), Malrose
patent: 3286673 (1966-11-01), Nason
patent: 3322089 (1967-05-01), Hook
patent: 3747549 (1973-07-01), Shutt
patent: 3762353 (1973-10-01), Shutt
Avila Stephen P.
Kirk James F.
Nase Jeffrey V.
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