Semidisplacement hydrofoil ship

Details Semidisplacement hydrofoil ship Semidisplacement hydrofoil ship

1975-04-09

1976-12-07

Blix, Trygve M.

Ships

Building

Observation boats

114 56, B63B 118

Patent

active

039955753

ABSTRACT:
A displacement hull ship has one or more elongated hull structures underlying and supporting a deck structure. The hull structures each have a pair of elongated side walls extending longitudinally of the ship. The side walls have relatively widely spaced upper portions and relatively narrowly spaced lower portions joined by inclined intermediate portions. The lower portions define opposite sides of a displacement keel. When the ship is at rest, its displacement water line is near the juncture of the upper and intermediate portions. Hydrofoils are provided at submerged locations on the displacement keel to raise the ship in the water when the ship is underway such that the cruising water line is near the juncture of the lower and intermediate portions. A plurality of such hull structures may be arranged side-by-side to support a common deck structure. Some of the hydrofoils may be advantageously located between adjacent side-by-side hull structures. Separate propulsion units and rudder controls are preferably provided on separate ones of the hull structures.

REFERENCES:
patent: 1516750 (1924-11-01), Muskat
patent: 3296992 (1967-01-01), Lackenby
patent: 3881438 (1975-05-01), Jones, Jr.

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