Multiple step vented hull

Details Multiple step vented hull Multiple step vented hull

1979-05-10

1982-09-07

Blix, Trygve M.

Marine propulsion

Buoyant propelling means

Wheellike

114291, B63H 138

Patent

active

043481957

ABSTRACT:
A boat hull is provided with a series of steps which are angled toward the center of the hull from the front to the rear of the hull. In order to permit easy riding up of the hull on the steps progressively, as the speed of the hull is increased, the steps are carried over the side of the hull above the normal water line of the hull when the boat is stationary. As the power is increased, the wetted area of the hull is progressively decreased and the friction of the hull and its resistance to forward motion is progressively decreased as the hull rides further out of the water. The principles as described above are applicable to airplane hulls, the wheels of amphibious vehicles, and other variations of normal type boat hulls.

REFERENCES:
patent: 1024682 (1912-04-01), Fauber
patent: 1050517 (1913-01-01), Chase
patent: 1296155 (1919-04-01), Bazaine
patent: 1880371 (1932-10-01), Brush
patent: 1933598 (1933-11-01), Parker
patent: 2396721 (1946-03-01), Patterson et al.
patent: 2423860 (1947-07-01), Van Patten
patent: 3148652 (1964-09-01), Canazzi
patent: 3628493 (1971-12-01), Headrick
patent: 3874315 (1975-04-01), Wright

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