Predicted engine core noise levels are compared with measured total aircraft noise levels and with current and proposed federal noise certification requirements. Comparisons are made at the FAR-36 measuring stations and include consideration of both full- and cutback-power operation at takeoff. In general, core noise provides a barrier to achieving proposed EPA stage 5 noise levels for all types of aircraft. More specifically, core noise levels will limit further reductions in aircraft noise levels for current widebody commercial aircraft.


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    Title :

    Comparison of Predicted Engine Core Noise with Current and Proposed Aircraft Noise Certification Requirements


    Contributors:

    Publication date :

    1981


    Size :

    15 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English