A fault-tolerant data multiplexing and transmission system for fly-by-wire flight control application was successfully flight tested. The Fault-Tolerant Digital Airborne Data System (F-DADS) was adapted and installed as a link in the fly-by-wire flight control system of the USAF/CALSPAN Total In-Flight Simulator (TIFS) aircraft. Sixteen analog signals, including pilot inputs, (elevator, rudder, etc.), autopilot feedback, (attitude, rates, etc.), were time multiplexed and transmitted via a serial digital data bus. F-DADS data terminals were redundant for failure protection. In addition to a conventional twisted pair wire data bus the multiplex link was operated with a fiber optic data bus and a microwave data bus which are immune to almost all types of electromagnetic interference.


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    Title :

    Fault-Tolerant Digital Airborne Data System Flight Test


    Contributors:

    Publication date :

    1974


    Size :

    54 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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