Hydro-planing foil

Details Hydro-planing foil Hydro-planing foil

1999-04-21

2000-08-01

Avila, Stephen

Marine propulsion

Screw propeller

Having means to control flow around propeller

114271, B63H 118

Patent

active

060958758

ABSTRACT:
A detachable hydro-planing foil for a marine outboard propeller drive comprises a plate having leading edges that are substantially backswept symmetrically from a plate centerline and trailing edges that are arced in a forward concavity substantially symmetrically from the centerline. Laterally of the centerline, the plate terminates with plate tips that are down turned with a negative dihedral of between about 25.degree. and about 45.degree.. The forward concavity of the trailing edges sweeps the trailing edge forward of the forward propeller rotational plane.

REFERENCES:
patent: 4445452 (1984-05-01), Loch
patent: 4738644 (1988-04-01), Happel
patent: 5178089 (1993-01-01), Hodel
patent: 5645009 (1997-07-01), Lexau
Bass Pro Shops Outdoor World 1993 Catalog, p. 321.

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