Characteristics were determined for twin engine jet aircraft having 8-lobe nozzles and ejectors, and unmodified aircraft; in-flight sound pressure levels measured on ground under flight path were reduced 5 to 6 db by suppressors; increases in total drag coefficient of 3 and 7% and decreases in specific range of 5 to 14% were found to result from suppressor.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Ground and in-flight acoustic and performance characteristics of jet-aircraft exhaust noise suppressors


    Weitere Titelangaben:

    NASA -- Tech Note


    Beteiligte:
    Coles, W.D. (Autor:in) / Mihaloew, J.A. (Autor:in) / Swann, W.H. (Autor:in)


    Erscheinungsdatum :

    1961


    Format / Umfang :

    50 pages


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch





    Jet aircraft ground run up noise suppressors

    Industrial Acoustics Company | SLUB | 1975




    Acoustic behaviour of ground plates for aircraft noise flight tests

    Blandeau, Vincent P. / Regnier, Vincent / Bousquet, Philippe | AIAA | 2018