Boots – shoes – and leggings
Patent
1980-06-24
1982-12-07
Krass, Errol A.
Boots, shoes, and leggings
244 90A, 244175, 318563, 364150, 364187, G05D 108
Patent
active
043630987
ABSTRACT:
An aircraft spoiler control system wherein each of a plurality of spoilers is driven by an electrically responsive actuator. Sense signals representative of the aircraft's control wheel rotation, speedbrake lever deflection, flap position and air/ground status are processed by logic which produces a corresponding control signal for each actuator. Fault detection circuitry switches in a back-up actuator control signal if a fault occurs in the active control circuit.
REFERENCES:
patent: 2612329 (1952-09-01), Crandall et al.
patent: 3636324 (1972-01-01), Dommasch
patent: 3787009 (1974-01-01), Wheldon
patent: 4087065 (1978-05-01), Arnquist et al.
patent: 4130241 (1978-12-01), Meredith et al.
patent: 4143839 (1979-03-01), Antonov et al.
patent: 4261537 (1981-04-01), Tisdale, Sr. et al.
Boeing 747 Maintenance Manual, "Spoiler Control System-Description and Operation", Apr., 1975, pp. 1-15.
Panavia Tornado, "Flight Control System", 1978.
Buus Henning
Justad Odd
MacFie Thomas D.
DeVogel Nicolaas
Donahue Bernard A.
Hamley James P.
Krass Errol A.
The Boeing Company
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