The F/A-18 incorporates a digital fly-by-wire primary flight control system (FCS). An emergency mechanical backup/linkage to the horizontal stabilizers (stabs) is provided in the event of a major FCS failure. Unfortunately, mechanical backup (MECH) mode reversion incidents have increased dramatically in recent years. A flight test program was performed to identify MECH reversion trigger mechanisms and identify a minimum single engine power setting (RPM) above which, reversion was improbable. To do so required forcing in-flight MECH reversions while operating single engine. This was achieved by inducing substantial hydraulic demand through cycling the control stick and/or ancillary equipment such as flaps and landing gear. Risks associated with attempting to force the aircraft into an emergency mode with vigorous flight control inputs while single engine are addressed in this paper along with the risk mitigation, test method, conclusions and lessons learned.


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    Titel :

    F/A-18A testing of flight control system reversion to mechanical backup


    Beteiligte:
    Girard, M.M. (Autor:in) / Sharpe, P. (Autor:in)


    Erscheinungsdatum :

    01.01.1999


    Format / Umfang :

    475256 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    F/A-18A Testing of Flight Control System Reversion to Mechanical Backup

    IEEE; Aerospace and Electronics Systems Society | British Library Conference Proceedings | 1999



    F/A-18A Testing of Flight Control System Reversion to Mechanical Backup

    Girard, M. M. / Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2000



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