The visiblity of targets on the ground for observers in an aircraft was studied by means of naked eye observations from a helicopter. The maximum flight altitudes at which detection, recognition, or identification of ground targets is still possible were calculated under the assumption that the visibility distance is a lagarithmic function of the altitude. The constants of this function were determined experimentally, and are given.


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    Title :

    Influence of the Flight Altitude and Limitation of the Field of View on the Visibility of Targets on the Ground and the Maximum Visibility Flight Altitude


    Contributors:

    Publication date :

    1980


    Size :

    43 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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