Supersonic aircraft bow-wave shape is altered by refraction when wave passes to ground level through earth's atmosphere made up of wind and temperature strata; acoustic ray tracing procedure is derived and programmed for computer to give ground level sound patterns for straight, level supersonic flight and arbitrary weather conditions; calculations for Mach 1.5 flight across 200 knot jet-stream wind of 40,000 ft altitude show that sound focus line is generated to lee of course which could cause objectionable disturbance on ground.


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    Title :

    Sonic boom waves -- Calculation of atmospheric refraction


    Additional title:

    Aerospace Eng


    Contributors:
    Reed, J.W. (author) / Adams, K.G. (author)

    Published in:

    Publication date :

    1962


    Size :

    5 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :



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