A flight evaluation of the AN/APN 191 radar altimeter was conducted to determine its accuracy and suitability as a test instrument. The testing consisted of 9.7 flight hours with the altimeter system installed in a UH-1C helicopter. Results show that the AN/APN 191 altimeter system has a large random error and is not as accurate as present altitude determination methods. Therefore, this altimeter is unsatisfactory as a test instrument. The indicator scale and sensitivity were excellent; and the accuracy was not affected by attitude, vertical speed, or airspeed variations. (Author)


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    Titel :

    Flight Evaluation An/Apn 191 Radar Altimeter


    Beteiligte:
    G. L. Bender (Autor:in) / J. R. Burden (Autor:in)

    Erscheinungsdatum :

    1970


    Format / Umfang :

    29 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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