Helicopter blade assembly adapted to permit rapid forward flight

Details Helicopter blade assembly adapted to permit rapid forward flight Helicopter blade assembly adapted to permit rapid forward flight

1996-10-18

1999-08-03

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

By actuator eccentric to rotation axis

416114, 416132R, 416132A, 416150, B64C 2739

Patent

active

059316390

ABSTRACT:
A helicopter blade assembly for permitting rapid forward flight in a helicopter having separate means for providing a forward impetus. The assembly has a set of rotatable blades attached to a substantially vertical mast. These blades slope downward near to their distal ends, thereby creating an inverted disk virtual air foil when the blades are rapidly rotated by the mast. In a preferred embodiment the camber of the blades and, therefore, the shape of the virtual air foil is controllable.

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patent: 4930988 (1990-06-01), Griffith
patent: 5190242 (1993-03-01), Nichols
patent: 5318248 (1994-06-01), Zielonka

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