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Aircraft - Electrical Signal Wire

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6 years 10 months ago #439 by Archived Forum Admin
Dear All,

Many aircrafts utilize a fly-by-wire system whereby electrical signals are transfered via "signal cables" for flight control.

I am trying to determine whether the signals are transfered via AC or DC. Does anyone have an answer or know of some good resources that may have this information?

Thanks!

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6 years 10 months ago #440 by Archived Forum Admin
Hello there,

I am under the impression that "Fly-by-Wire" is a digital control system, Please see these web pages:

www.airbus.com/en/corporate/people/compa.../history/part_6.html
en.wikipedia.org/wiki/Aircraft_flight_control_systems
www.nasa.gov/centers/dryden/news/FactSheets/FS-024-DFRC.html

Some advanced military aircraft use optical fiber instead of wire and this is called a "Fly-by-Light" digital control system.

Servo motors, some hydraulically assisted, and other hydraulic devices do the actual work on the control surfaces.

Regards
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com

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6 years 10 months ago #441 by Archived Forum Admin
Hi Peter,

Thanks for your response (both on this post and my other recent post).

Ian

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