The detection of clear-air turbulence (CAT) ahead of an aircraft in real-time by an infrared (IR) radiometer is discussed. It is noted that the alter time and reliability depend on the band-pass of the IR filter used and on the altitude of the aircraft. Results of flights tests indicate that a bandpass of 20 to 40 microns appears optimal for altering the aircraft crew to CAT at times before encounter of 2 to 9 min. Alert time increases with altitude, as the atmospheric absorption determining the horizontal weighting is reduced.


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    Title :

    Flight tests of a clear-air turbulence alerting system


    Contributors:


    Publication date :

    1981-03-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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