Tail rotor authority control for a helicopter

Details Tail rotor authority control for a helicopter Tail rotor authority control for a helicopter

1994-12-22

1997-03-04

Kashnikow, Andres

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244 1713, 244 1721, B64C 2700

Patent

active

056071221

ABSTRACT:
An apparatus for interconnection in a helicopter tail rotor control linkage for changing the pitch of the tail rotor blades in response to predetermined inputs is provided. The apparatus comprises a linkage member having a variable geometry, an actuator, and a control unit. In a preferred embodiment, the control unit utilizes a microcontroller to monitor inputs corresponding to ambient air condition and automatically vary the maximum tail rotor pitch so as to provide maximum tail rotor authority over a range of altitudes.

REFERENCES:
patent: 2209879 (1940-07-01), Focke
patent: 2689099 (1954-09-01), Lightfoot
patent: 3000445 (1961-09-01), Stuart
patent: 3532302 (1970-10-01), Dean
patent: 3558081 (1971-01-01), Williams
patent: 3589647 (1971-06-01), Burkham
patent: 3802273 (1974-04-01), Helmuth et al.
patent: 3833188 (1974-09-01), Robinson
patent: 4103848 (1978-08-01), Johnson, Jr. et al.
patent: 4134560 (1979-01-01), Messerschmidt
patent: 4340335 (1982-07-01), Cheney
patent: 4347997 (1982-09-01), Byham et al.
patent: 4493465 (1985-01-01), Howlett et al.
patent: 4529155 (1985-07-01), Bramwell et al.
patent: 4540141 (1985-09-01), Durno et al.
patent: 4759514 (1988-07-01), Burkham
patent: 4870412 (1989-09-01), Vuichard
patent: 4881874 (1989-09-01), White et al.
patent: 5067668 (1991-09-01), Zuck
patent: 5131604 (1992-07-01), Yoerkie, Jr. et al.
patent: 5188511 (1993-02-01), Ebert
patent: 5265825 (1993-09-01), Ebert et al.
patent: 5269654 (1993-12-01), Chapman
patent: 5305968 (1994-04-01), Arlton
patent: 5306119 (1994-04-01), Bandoh et al.
J. J. Cornish, III, Aeronautics, in Mark's Standard Handbook for Mechanical Engineers (E. A. Avallone & T. Baumaister, III, eds.); Ninth Ed., 1978, pp. 11-66 to 11-67.
Computer Patent Search Report (Unpublished), dated Dec. 8, 1994, pp. 1-38.

Affiliated with

Also associated with

Rating

Tail rotor authority control for a helicopter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tail rotor authority control for a helicopter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tail rotor authority control for a helicopter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2140610