Airflow enhancement for sailboat headsails

Details Airflow enhancement for sailboat headsails Airflow enhancement for sailboat headsails

1985-05-16

1987-03-03

Basinger, Sherman D.

Ships

Sail or control means therefor

Specific sail structure or arrangement

114 39, B63H 908

Patent

active

046466711

ABSTRACT:
An apparatus for improving the flow of air past the headsail (5) of a sailboat including an airfoil (41) which is oval-shaped in cross-section, the leading edge of the sail being secured in a groove (45) along one side thereof. A portion (37 or 39) of the curved surface of the airfoil (41) extends into the wind, with the surface (37 or 39) curving toward the inner side of the sail, forming a wide leading edge for the sail. The airfoil (41) may be rotated about the leading edge of the headsail as necessary, depending on the direction of the boat relative to the wind.

REFERENCES:
patent: 3800728 (1974-04-01), Dowling
patent: 3802373 (1974-04-01), Lagerqust
patent: 3851609 (1974-12-01), Stearn
patent: 3948200 (1976-04-01), Hood et al.
patent: 4196687 (1980-04-01), Newick
patent: 4211179 (1980-07-01), Saunders
patent: 4369726 (1983-01-01), Mader

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