Three different generic navigation systems were examined for their effects on helicopter copilot/navigator workload and performance during nap-of-the-earth (NOE) flight. The navigation systems examined were: (1) the conventional 1:50,000 scale topgraphic hand-held map, (2) a Doppler navigation system in conjunction with a hand-held map, and (3) a projected map system driven by Doppler signals in conjunction with a hand-held map. Eighteen pilots performed copilot/navigator duties in an Army JUH-1H utility helicopter flown by a laboratory research pilot. Data collected included measures of navigation performance, pilot-copilot communications, and copilot/navigator eye movements. The results indicate thatautomatic navigation systems like the ones used here improve navigation performance by enabling the aircrew to reach their destination with reduced in-flight delays, at a faster airspeed, and with fewer and smaller navigation errors. The number of verbal exchanges between the copilot and pilot was reduced when using the Doppler system versus the hand-held map alone. Subjects who used the Doppler also spent less time navigating. When using a projected map system, copilot/navigators experienced a lower level of visual workload and spent 10% more time looking outside the cockpit.


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    Titel :

    Comparison of Helicopter Copilot Workload While Using Three Navigation Systems during Nap-of-the-Earth Flight


    Beteiligte:
    D. O. Cote (Autor:in) / R. R. Simmons (Autor:in) / G. P. Krueger (Autor:in)

    Erscheinungsdatum :

    1982


    Format / Umfang :

    113 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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