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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

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.

대표청구항 ▼

A displacement hull ship, comprising: a. a deck structure defining a Deck; b. at least one hull structure underlying said deck for supporting said deck above water, said hull structure including a pair of elongated sidewalls extending longitudinally of the ship; c. each of said sidewalls having an u

A displacement hull ship, comprising: a. a deck structure defining a Deck; b. at least one hull structure underlying said deck for supporting said deck above water, said hull structure including a pair of elongated sidewalls extending longitudinally of the ship; c. each of said sidewalls having an upper portion and a lower portion joined by an intermediate portion; d. said upper portions extending substantially vertically in regions of their juncture with said intermediate portions; e. said lower portions depending substantially vertically in regions of their juncture with said intermediate portions and defining opposite sides of a displacement keel which extends longitudinally of the ship; f. said intermediate portions providing inclined transition surfaces connecting said upper and lower portions; g. said regions of juncture between said lower and intermediate portions being spaced apart at a majority of locations along the lengths of said side walls by distances which are less than the distances between the regions of juncture between said upper and intermediate portions; h. said portions being of such configuration as will give the ship a displacement water line near the regions of juncture between said upper and intermediate portions; i. a plurality of hydrofoils carried on said displacement keel for raising the hull structure in the water when the ship is underway such that the cruising water line is near the regions of juncture between said lower and intermediate portions; and, 1. said hydrofoils being positioned below said cruising water line.