Boots – shoes – and leggings
Patent
1981-09-28
1984-09-18
Chin, Gary
Boots, shoes, and leggings
364187, 371 68, 318564, 244194, G05D 108, G06F 1118
Patent
active
044727801
ABSTRACT:
Each wing of an aircraft carries a set of five outboard spoilers, one inboard spoiler, one inboard aileron and one outboard aileron, together constituting the lateral control surfaces for the aircraft. Each spoiler is positioned by means of a single thread electrohydraulic servoactuator. Each outboard aileron is positioned by means of a one/one fail-operational electrohydraulic servoactuator. Each inboard aileron is positioned by a two/one fail-operational, electrohydraulic servoactuator. The control system is operated by four independent electrical control signal processing channels and four independent hydraulic pressure supplies. A distribution pattern of the various lateral control surfaces on the aircraft, and an association pattern of the hydraulic pressure supplies and the electric control signal processing channels to the actuators, results in the lateral control system being operable after three electric channel failures, or three hydraulic pressure supply failures, or a combination of three electric channel and three hydraulic pressure supply failures.
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Chenoweth Charles C.
Takats Imre J.
Barnard Delbert J.
Chin Gary
The Boeing Company
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