Helicopter integrated fire and flight control having coordinated

Details Helicopter integrated fire and flight control having coordinated Helicopter integrated fire and flight control having coordinated

1992-10-28

1994-05-10

Focarino, Margaret A.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 75R, 89 4121, 364423, B64C 1134

Patent

active

053101359

ABSTRACT:
During operation of a flight control system in a coordinated area bombing mode, one pair in a group of pairs of fire control azimuth coordinate error signal and elevation coordinate error signals are faded-in as the aircraft yaw attitude reference and pitch attitude reference, respectively. Each pair is respectively indicative of the change in aircraft yaw attitude and pitch attitude for an aircraft reference axis to be aligned with an aiming line of sight. The aiming line of sight corresponds to a target location within a selected target area. A firing signal is provided in response to both the azimuth and elevation coordinate error signals being below respective threshold magnitudes, and the next pair in the group of pairs of azimuth and elevation coordinate error signals provide the aircraft attitude reference. A selected weapon is fired in response to the firing signal.

REFERENCES:
patent: 2933980 (1960-04-01), Moore et al.
patent: 4067517 (1978-01-01), Barnum
patent: 4528891 (1985-07-01), Branello et al.
patent: 5222691 (1993-06-01), Gold et al.
McDonnell Douglas Helicopter Company, Integrated Air-to-Air Weapon (INTAAW) Evaluation System Definition Report, Final Issue, Jan. 23, 1990, pp. 6-1 to 6-31.
"A Simulator Investigation of Parameters Affecting Helicopter Handling Qualities in Air Combat (HAC II)", pp. 1-18, by Michael S. Lewis and M. Hossein Mansur, Aerospace Engineers, Ames Research Center; and Robert T. M. Chen, NASA Ames Research Center.
IFEE AES Systems Magazine, Jan. 1992, "Integrated Flight/Fire Control for Attach Helicopters", pp. 17-23, by Stephen Osder of McDonnell Douglas Helicopter Company.
Chief Engineer, vol. 6, No. 4, Jul.-Aug. 1983, "Design and Analysis of a Digitally Controlled Integrated Flight/Fire Control System", pp. 251-257, by John H. Blakelock, Applications Research Corporation.

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