Ship's-vessel's rudder with reduced drag effected factors

Details Ship's-vessel's rudder with reduced drag effected factors Ship's-vessel's rudder with reduced drag effected factors

1984-11-07

1986-06-03

Blix, Trygve M.

Ships

Steering mechanism

Rudders

114 57, 440 51, B63H 2538

Patent

active

045922993

ABSTRACT:
An upstanding panel-like body is provided including top, bottom and front and rear margins and opposite side surfaces extending between those margins. The opposite side surfaces are generally vertically straight and parallel. The front and rear margins are transversely elliptically rounded and the opposite sides of the convexly rounded front margin merge rearwardly into first generally constant radius of curvature laterally outwardly convex forward opposite side partial cylindrical surfaces which in turn merge rearwardly into second generally constant radius of curvature and laterally outwardly concave mid-length opposite side surfaces merging rearwardly into third generally constant radius of curvature laterally outwardly convex rear opposite side partial cylindrical surfaces joined at their rear portions by the convexly rounded rear margin of the body.

REFERENCES:
patent: 45959 (1865-01-01), Crosby
patent: 3508511 (1970-04-01), Bosnick
patent: 3570438 (1971-03-01), Mackowiak
patent: 3670685 (1972-06-01), Milessa
patent: 3847104 (1974-11-01), Kaufer

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