Surface-drive boat propulsion system

Details Surface-drive boat propulsion system Surface-drive boat propulsion system

1993-03-19

1993-10-05

Sotelo, Jesus D.

Marine propulsion

Screw propeller

Propeller arrangement

440112, B63H 506

Patent

active

052499944

ABSTRACT:
An improved propulsion system is provided for inboard motor boats with planing-type hulls. A straight propeller shaft is passed through the bottom of the hull at an angle shallow enough to present a portion of the propeller above the bottom of the hull aft of the transom thereby providing a propeller that operates partially above the running water line during planing conditions. The benefits of a planing-type hull and a surface-drive propulsion system is economically and efficiently combined in a new design for inboard motor boats. The improved design is inexpensive to manufacture, install and maintain.

REFERENCES:
patent: 809064 (1906-01-01), Johnson
patent: 2595863 (1952-05-01), Loofbourrow
patent: 3938463 (1976-02-01), Hecker et al.
patent: 4088091 (1978-05-01), Smith
patent: 4383828 (1983-05-01), Wynne
patent: 4428734 (1984-01-01), Ludlow
patent: 4689026 (1987-08-01), Small
patent: 4854903 (1989-08-01), Sirois

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