Ejection seat sequencer

Details Ejection seat sequencer Ejection seat sequencer

1991-10-10

1993-06-29

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

B64D 1758

Patent

active

052226956

ABSTRACT:
An electronic sequencer for an aircraft ejection seat comprising a plurality of sensors for air-speed, temperature, air pressure and acceleration. These sensors provide, via interface circuitry, signals in digital electronic form to a microprocessor which, when appropriate, initiates various functions of the ejection seat, such as the deployment of drogue and main parachutes and release of seat harness. The sensors and main components of the microprocessor are provided in triplicate and the microprocessor uses a polling procedure to obtain a high level of reliability of operation.

REFERENCES:
patent: 4057206 (1977-11-01), Duncan et al.
patent: 4527758 (1985-07-01), Ayoub et al.
patent: 4580746 (1986-04-01), Peck
patent: 4673147 (1987-06-01), Solomonides
patent: 4721273 (1988-01-01), Trikha
patent: 4792903 (1988-12-01), Peck et al.
patent: 4846421 (1989-07-01), Trikha
IEEE 1988 Naecon Proceedings, May 23-27, vol. 3, pp. 874-880 S. Hellyer & C. Sherhod, "Electronics on the Ejection Seat".

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