Aerofoils

Details Aerofoils Aerofoils

1982-10-18

1985-08-27

Sotelo, Jesus D.

Ships

Sail or control means therefor

Specific sail structure or arrangement

B63H 904

Patent

active

045371466

ABSTRACT:
A reversible aerofoil comprises a central panel (10) with lateral panels (12A,12B) hinged to opposite edges. The lateral panels can be hinged so that either one overlies the central panel while the other is extended, thereby producing alternative mirror-image aerofoils. The lateral panels can be hinged so that they both overlie the central panel, thereby producing a stowed configuration. The shape of the panels is such that in the stowed configuration the profile of the outside surfaces of the lateral flaps match that of the central panel, thereby allowing a cross-section to be produced which edge-on is substantially symmetrical, preferably elliptical, thereby producing a low-drag aerodynamically stable stowed configuration.

REFERENCES:
patent: 1462800 (1923-07-01), Clemmer
patent: 3524610 (1970-08-01), Alvarez-Caldern
patent: 3580203 (1971-05-01), Martin
patent: 3934533 (1976-01-01), Wainwright
patent: 4386574 (1983-01-01), Ridlland

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