Trim tab and variable-exhaust system especially for motor boats

Details Trim tab and variable-exhaust system especially for motor boats Trim tab and variable-exhaust system especially for motor boats

1998-06-08

2000-07-18

Avila, Stephen

Ships

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

Movably mounted hull portion or hull adjunct

114286, 440 89, B63B 132

Patent

active

060891777

ABSTRACT:
A box-like trim tab for a high-speed motor boat or motor yacht has an inlet at its side pivotally connected with the stern of the boat so that it can allow the exhaust gas or a cooling liquid of the engine to pass through the trim tab and emerge at the open free side thereof. The trim tab reduces the noise generated by discharging the exhaust gas under the water or by conducting the exhaust gas through the water to the trim tab outlet.

REFERENCES:
patent: 3650310 (1972-03-01), Childress
patent: 3738301 (1973-06-01), Sjoo
patent: 3977349 (1976-08-01), Hummel
patent: 5389022 (1995-02-01), Kobayashi
patent: 5591058 (1997-01-01), Schriever
patent: 5719358 (1998-02-01), Lindholm

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