Hull foils with hydrodynamic righting forces

Details Hull foils with hydrodynamic righting forces Hull foils with hydrodynamic righting forces

1976-09-02

1977-11-15

Blix, Trygve M.

Ships

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

Having hydrofoil

114129, 114140, B63B 128

Patent

active

040580768

ABSTRACT:
A boat is provided having front and rear ends, a bottom and upwardly projecting sides extending upwardly to an elevation spaced above the static water line of the boat. A depending central strut (fixed or upwardly retractable) projects downwardly from the bottom and a pair of elongated downwardly convergent opposite side flexible foils including leading and trailing longitudinal edges facing in front and rear directions, respectively, of the boat are provided and have their lower ends anchored to the lower end portion of the strut. The upper end portions of the foils are anchored relative to upper portions of the corresponding sides of the boat above the static water line thereof outwardly of the boat sides and the foils are free of support from the boat intermediate the upper and lower ends of the foils.

REFERENCES:
patent: 2749869 (1956-06-01), Bush
patent: 2749871 (1956-06-01), Scherer et al.
patent: 2890671 (1959-06-01), Hobday
patent: 2926623 (1960-03-01), Leehey
patent: 3651775 (1972-03-01), Kock
patent: 3763811 (1973-10-01), Danahy
patent: 3961590 (1976-06-01), Kefalos

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