Boat with auxiliary steering apparatus

Details Boat with auxiliary steering apparatus Boat with auxiliary steering apparatus

1984-11-28

1985-12-03

Blix, Trygve M.

Ships

Steering mechanism

Auxiliary

114152, B63H 2500

Patent

active

045560056

ABSTRACT:
An apparatus for aiding in the steerage of boats has one or more fins connected to each side of the aft part of the boat, such that the fins are entirely above the water until the boat is so heeled as to have moderate helm, and after that the fin(s) on the heeled-down side become progressively more immersed as the boat heels further. The spanwise axes of the fins are about vertically disposed when the boat is upright. The cordwise axes of the fins slope inward toward the longitudinal axis of the boat. The fore-aft sectional shape of the fins may be asymmetrical to improve the lift/drag characteristics. One fin on either side may be attached spanwise to a shaft mounted in a shaft housing extending obliquely through the hull and deck; the shafts may be fixed at several angles, or actively adjusted to counter variations in the magnitude of weather-helm and lee-helm experienced by the boat.

REFERENCES:
patent: 2972322 (1961-02-01), Parker
patent: 2998791 (1961-09-01), Light
patent: 3249081 (1966-05-01), Schuster
patent: 3911845 (1975-10-01), Holtom
patent: 4261278 (1981-04-01), Gaudin
patent: 4381725 (1983-05-01), Rowan

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