Boat having a variable hull configuration

Details Boat having a variable hull configuration Boat having a variable hull configuration

1982-03-02

1984-07-10

Blix, Trygve M.

Ships

Hull or hull adjunct employing fluid dynamic forces to...

Movably mounted hull portion or hull adjunct

114 39, 114 56, B63B 122

Patent

active

044586221

ABSTRACT:
A boat having a variable hull configuration. The hull operates as a displacement hull designed for low resistance at sailing speeds and certain operating conditions. The hull includes an aft section having a pair of surfaces displaceable to a position and attitude such that at higher speeds, under power, the hull gives lift to the stern to facilitate a planing action. In the sailing or low speed mode, these surfaces can be stowed against the hull, if in the form of plates, or they may be solid bodies, such as wedges retracted into the hull by hand, mechanical, electrical or hydraulic operation.

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patent: 1665149 (1928-04-01), Van Wienen
patent: 2444526 (1948-07-01), Pawley, Jr.
patent: 3236202 (1966-02-01), Quady et al.
patent: 3288236 (1966-11-01), Padial
patent: 3413948 (1968-12-01), Coll
patent: 3459147 (1969-08-01), Ismay
patent: 3498248 (1970-03-01), Bibber
patent: 3678874 (1972-07-01), Flink
patent: 3707936 (1923-01-01), Harris
patent: 3938458 (1976-02-01), Irgens
patent: 4004536 (1977-01-01), Bernier
patent: 4058077 (1977-11-01), Johansson

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