Control alternating system

Details Control alternating system Control alternating system

1977-06-13

1979-08-21

Yuen, Henry O.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 59, 137 81, B64D 1300

Patent

active

041648960

ABSTRACT:
A cabin pressure control system has two independent controllers, one of which is used as primary controller while the other serves as standby. On alternate flights the identity of primary and standby controller are switched so that both controllers will be regularly utilized.

REFERENCES:
patent: 2851254 (1958-09-01), Messinger et al.
patent: 2966109 (1960-12-01), Best
patent: 3192848 (1965-07-01), Townsend
patent: 3215057 (1965-11-01), Turek
patent: 3461790 (1969-08-01), Kinsell et al.
patent: 3473460 (1969-10-01), Emmons
patent: 3711044 (1973-01-01), Matulich

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