Drive arrangement for a planing boat

Details Drive arrangement for a planing boat Drive arrangement for a planing boat

1990-06-20

1991-11-19

Sotelo, Jesus D.

Marine propulsion

Inboard engine mount

Having thru-hull sealing means

440 66, B63H 2336

Patent

active

050662554

ABSTRACT:
In a drive arrangement for a planing hull boat in which a drive shaft extends from a motor within the hull through the stern wall to a propeller arranged in a tunnel-shaped water flow guide structure extending backwardly from the bottom edge of the stern wall and upwardly in a curved fashion, the propeller is mounted so as to be rotatable about an axis which is essentially parallel to and in alignment with the hull bottom. The flow guide structure has a top end section hinged so as to be tiltable about a horizontal axis between the guide structure side walls and, at its front end adjacent the rear hull bottom edge, a scoop adapted to scoop up a stream of water which is directed over the flow guide structure to form a water seal preventing in leakage of air into the water flowing through the flow guide structure.

REFERENCES:
patent: 2096223 (1937-10-01), Chandler et al.
patent: 2860594 (1958-11-01), Kiekhaefer
patent: 3768432 (1973-10-01), Spaulding

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