Specific recommendations for environmental test criteria, data acquisition procedures, and instrument performance requirements for measurement of noise levels produced by aircraft in flight are provided. Recommendations are also given for measurement of associated airplane and engine parameters and atmospheric conditions. Recommendations are based on capabilities which were available commercially in 1981; they are applicable to field tests of aircraft flying subsonically past microphones located near the surface of the ground either directly under or to the side of a flight path. Aircraft types covered by the recommendations include fixed-wing airplanes powered by turbojet or turbofan engines or by propellers. The recommended field-measurement procedures are consistent with assumed requirements for data processing and analysis.


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    Title :

    Recommendations for Field Measurements of Aircraft Noise


    Contributors:
    A. H. Marsh (author)

    Publication date :

    1982


    Size :

    94 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English