Marine propulsion trim tab with anti ventilation means

Details Marine propulsion trim tab with anti ventilation means Marine propulsion trim tab with anti ventilation means

1974-07-08

1976-05-11

Blix, Trygve M.

115 17, 115 34R, B63H 128

Patent

active

039555275

ABSTRACT:
Disclosed herein is a marine propulsion device including a lower unit comprising a laterally extending anti-cavitation plate extending from the lower unit above a propeller and including a trailing portion, together with a trim tab extending downwardly from the trailing portion of the anti-cavitation plate aft of the propeller, and a deflector located aft of the propeller and extending from the trailing portion of the anti-cavitation plate and rearwardly of the trim tab for pressurizing the water forwardly thereof and below the anti-cavitation plate and in the region of the trim tab during forward movement of the lower unit through the water.

REFERENCES:
patent: 1716962 (1929-06-01), Johnson
patent: 1980685 (1934-11-01), Johnson
patent: 2256831 (1941-09-01), Karey
patent: 2998795 (1961-09-01), Downie et al.
patent: 3516378 (1970-06-01), Linsley
patent: 3537419 (1970-11-01), Holtermann et al.

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