Ship's rudder

Details Ship's rudder Ship's rudder

1991-03-28

1993-08-03

Swinehart, Edwin L.

Ships

Steering mechanism

Rudders

B63H 2506

Patent

active

052319474

ABSTRACT:
A ship's rudder has a main rudder body with a cross-sectional shape that is streamlined and symmetrical relative to the vertical center plane of the rudder. A pair of fins extend horizontally from opposite vertical surfaces of the rudder body, symmetrically arranged relative to the center plane of the rudder. The chord length of each fin decreases from a root of the fin toward the tip of the fin. The leading edges of the fins coincide at the center plane of the main rudder body, and are located at the same level as the center line of a propeller of the ship. The fins have winglets on their tip ends. One of the winglets is directed upwardly and the other winglet is directed downwardly.

REFERENCES:
patent: 4050397 (1977-09-01), Vanderleest
patent: 4653418 (1987-03-01), Mori et al.
Aerodynamics, Aeronautics, and Flight Mechanics pp. 214-219 .COPYRGT.1976.

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