Autogyro aircraft

Details Autogyro aircraft Autogyro aircraft

1990-12-12

1994-04-19

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to carrier tilt

416135, 416138, 416148, 416168R, 244 1725, 244224, 244233, B64C 2743, B64C 2759

Patent

active

053040368

ABSTRACT:
An autogyro aircraft has freewheeling rotor blades that provide lift. A separate pusher propeller provides forward thrust. The rotor system (20) has a collective arm (30) as a control for selectively setting and maintaining a tension force on a collective cable to regulate the rotor blade angle of attack or pitch angle between a no-lift attitude and a positive lift angle. The collective arm (30) sets a tension on collective cable against a coil spring biasing. The collective arm is connected to pivot or tilt a pitch change horn assembly and, in turn, connected rotor blades. The collective arm can be selectively set and maintained and released and reset both on the ground and in flight.

REFERENCES:
patent: 2080522 (1937-05-01), Wilford et al.
patent: 2534353 (1950-12-01), Hiller et al.
patent: 3193019 (1965-07-01), Drees et al.
patent: 3228479 (1966-01-01), Nagler
patent: 3556674 (1971-01-01), Foote
patent: 4071206 (1978-01-01), Magill
patent: 4741672 (1988-05-01), Breuner

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