Airfoil sail

Details Airfoil sail Airfoil sail

1992-04-16

1993-11-23

Basinger, Sherman

Ships

Sail or control means therefor

Reefing and furling

114 90, 114103, B63H 906

Patent

active

052634299

ABSTRACT:
Airfoil sail for a sailboat of which the length-adjustable mast consists of several telescoping pipes 12, 18, 20 holding individually raised or reefed sail crossbeams 44, 48, 52 with sail coverings spanning the vertical spacings between said crossbeams. Each crossbeam comprises several horizontal crossbeam sections connected to each other by vertical hinge shafts and jointly corresponding to a symmetric airfoil, which are pivotable for each crossbeam, by a motor adjustment drive, to curvatures optimally matching the wind conditions.

REFERENCES:
patent: 4016823 (1977-04-01), Davis
patent: 4116152 (1978-09-01), Larsson
patent: 4386574 (1983-06-01), Riolland
patent: 4388888 (1983-06-01), Gushurst, Jr.
patent: 4561374 (1985-12-01), Asker
patent: 4612868 (1986-09-01), Reynolds
patent: 4685410 (1987-08-01), Fuller
patent: 4702191 (1987-10-01), Minami et al.
patent: 4757779 (1988-07-01), Graveline
patent: 4796554 (1989-01-01), Laib

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