Shallow draft propeller pocket

Details Shallow draft propeller pocket Shallow draft propeller pocket

1980-04-01

1981-11-17

Barefoot, Galen L.

Marine propulsion

Screw propeller

Having means to control flow around propeller

B63H 506

Patent

active

043008895

ABSTRACT:
The invention pertains to a propeller pocket for reducing the draft of propeller driven marine craft, and the propeller pocket of the invention utilizes an increasing vertical dimension in the direction of the craft stern, the pocket being defined by planar surfaces, and the water within the pocket being "gathered" as the water approaches the stern to minimize cavitation at the propeller. The pocket is advantageous for use with either inboard, inboard/outboard or outboard driven installations and provides increased drive efficiencies with a reduction in hull draft.

REFERENCES:
patent: 1007583 (1911-10-01), Loetzer
patent: 3469557 (1969-09-01), Wollard
patent: 3744446 (1973-07-01), Gibbins
patent: 3823683 (1974-07-01), Usborne

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