Eight experienced US Army aviators performed various maneuvers in an instrumented helicopter to test the relative usability of two bifocally configured night vision goggles. Both configurations were statistically better than the unmodified arrangement when looking at a pilot's ability to hold a precise altitude at night. The subjective data, supported by flight performance observed betweeen the two bifocals, further suggested that a 24% bifocal version was more desirable than a 14% configuration. The inference is that the reduced inside field-of-view presented by the 14% bifocal interferes with a pilot's ability to rapidly locate instruments once he has directed his attention inside the cockpit. (Author)


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    Title :

    Human Performance/Workload Evaluation of the AN/PVS-5 Bifocal Night Vision Goggle


    Contributors:
    L. W. Stone (author) / M. G. Sanders (author) / D. D. Glick (author) / R. Wiley (author) / K. A. Kimball (author)

    Publication date :

    1979


    Size :

    97 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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