Variable camber inflatable airfoil

Ships – Sail or control means therefor – Specific sail structure or arrangement

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B63H 904

Patent

active

056716907

ABSTRACT:
A variable camber inflatable airfoil for primary use with sailing vessels. The airfoil consists of a port and a starboard airfoil panel connected to a mast to partially or entirely enclose the mast. The airfoil is further provided with various air-inlet ports to inflate the airfoil in either a dynamic fashion, with the airfoil being inflated via the air pressure from the ingress of air into the air-inlet ports during sailing, or alternatively, the airfoil may be inflated in a static fashion, with the air pressure within the airfoil remaining constant by being inflated and sealed off. Upon inflation, the shape of the airfoil may be adjusted by applying and removing tension from tension points on the port and starboard panels of the airfoil to obtain the optimal airfoil shape for the particular angle of attack and desired lift-to-drag ratio.

REFERENCES:
patent: 5279241 (1994-01-01), Aguilera
patent: 5333569 (1994-08-01), Henderson

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