A description is presented of some measurements which illustrate the variability of the experimentally developed ground noise footprints for a series of landing approach operations of a turbojet aircraft and a turbine powered helicopter. Measurements on the recently developed NASA Remotely Operated Multiple Array Acoustic Range are considered. The information presented is related to a turbojet fighter aircraft and a turbine powered helicopter performing landing approach operations along a 3 deg approach path. Each vehicle was acquired on radar tracking approximately 10 kilometers from the touchdown point and entered the test area at an altitude of about 470 m. The measured variations in meteorological quantities for the two time periods during which these tests were conducted are presented in graphs. Other graphs show the ground noise contour for the turbojet aircraft and the turbine helicopter.


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    Titel :

    Observed variability of aircraft noise footprint measurements


    Beteiligte:
    Maglieri, D. J. (Autor:in) / Henderson, H. R. (Autor:in) / Hilton, D. A. (Autor:in)

    Kongress:

    In: NOISE-CON 77; National Conference on Noise Control Engineering ; 1977 ; Hampton, VA


    Erscheinungsdatum :

    01.01.1977


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Aircraft Flyover Noise Measurements

    Strahle, Warren C. / Nagamatsu, Henry T. / Schwartz, Ira R. | AIAA | 1976


    Aircraft flyover noise measurements

    ZWIEBACK, E. | AIAA | 1975



    Variability in Airplane Noise Measurements

    H. R. Henderson / D. A. Hilton | NTIS | 1968


    Variability in airplane noise measurements

    Henderson, H. R. / Hilton, D. A. | NTRS | 1968