The Langley Research Center has conducted an experimental program on a model of the F-18 airplane to determine the performance of nonaxisymmetric nozzles relative to the aircraft's baseline axisymmetric nozzle. The performance of a single expansion ramp (ADEN) and twodimensional convergent-divergent (2-D C-D) nozzle were compared to the baseline axisymmetric nozzles. The effects of vectoring and reversing were also studied. Performance of a modified YF-17 airplane with the ADEN nozzle was also estimated. The results of this investigation indicate that nonaxisymmetric nozzles can be installed on a twin engine fighter airplane with equal or better performance than axisymmetric nozzles. The nonaxisymmetric nozzles also offer potential for innovative and improved aircraft maneuver through thrust vectoring and reversing. The YF-17/ADEN flown as a technology demonstrator would have reduced performance compared to an unmodified YF-17. (Se.)


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    Titel :

    Performance characteristics of nonaxisymmetric nozzles installed on the F-18 airplane


    Weitere Titelangaben:

    Betriebseigenschaften nicht-axialsymmetrischer Duesen am Flugzeug F-18


    Beteiligte:
    Capone, F.J. (Autor:in) / Gowadia, N.S. (Autor:in) / Wooten, W.H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1979


    Format / Umfang :

    30 Seiten, 25 Bilder, 1 Tabelle, 19 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Installed Performance of Vectoring/Reversing Nonaxisymmetric Nozzles

    P. E. Hiley / D. E. Kitzmiller / C. M. Willard | AIAA | 1979


    Nonaxisymmetric Nozzles Installed in Advanced Fighter Aircraft

    P. E. Hiley / H. W. Wallacet / D. E. Booz | AIAA | 1976


    Performance characteristics of nonaxisymmetric nozzles installed on the F-18 aircraft

    Capone, F. J. / Gowadia, N. S. / Wooten, W. H. | NTRS | 1979



    Performance Characteristics of Nonaxisymmetric Nozzles Installed on an F-18 Propulsion Model

    Francis J. Capone / Noshir S. Gowadia / W .H. Wooten | AIAA | 1980