Results of steady-state reverse and forward-to-reverse thrust transient performance tests are presented. The original QCSEE 4-segment variable fan nozzle was retested in reverse and compared with a continuous, 30° half-angle conical exlet. Data indicated that the significantly more stable, higher pressure recovery flow with the fixed 30° exlet resulted in lower engine vibrations, lower fan blade stress and approximately a 20% improvement in reverse thrust. Objective reverse thrust of 35% of takeoff thrust was reached. Thrust response of less than 1.5 sec was achieved for the approach and the takeoff-to-reverse thrust transients.


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    Titel :

    Reverse Thrust Performance of the QCSEE Variable Pitch Turbofan Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Reemsnyder, D. C. (Autor:in) / Bloomer, H. E. (Autor:in) / Samanich, N. E. (Autor:in)

    Kongress:

    Aerospace Congress and Exposition ; 1980



    Erscheinungsdatum :

    1980-09-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Reverse thrust performance of the QCSEE variable pitch turbofan engine

    Samanich, N. E. / Reemsnyder, D. C. / Bloomer, H. E. | NTRS | 1980


    Reverse thrust performance of the QCSEE variable pitch turbofan engine

    Samanich, N. E. / Reemsnyder, D. C. / Blodmer, H. E. | NTRS | 1980


    QCSEE UTW engine powered-lift acoustic performance

    Loeffler, I. J. / Samanich, N. E. / Bloomer, H. E. | NTRS | 1980


    QCSEE UTW engine powered-lift acoustic performance

    LOEFFLER, I. / SAMANICH, N. / BLOOMER, H. | AIAA | 1980