Disorientation periods of a helicopter gunner in the conduct of his task during a planned flight profile were investigated through the use of a computerized mathematical model of the vestibular system. Flight attitude and crewman seat change data were used as input to the model and crewman nystagmus rates and perceived angular sensations were predicted. These output data were then compared to actual onboard flight observations of crewman status and well being. The mathematical model was found to accurately predict periods of disorientation that coincided with those observed and were manifested by either excess nystagmus rates, perceived sensations of motion, or a combination of both. Rapid changes in seat angle were attributed as the primary cause of disorientation with vehicle attitude changes cross-coupled with seat angle changes, producing a secondary effect. (Author)


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    Titel :

    Study of Flight Environment Effects on Helicopter Gunner


    Beteiligte:
    C. Larson (Autor:in) / E. Wells (Autor:in) / B. H. Kaplan (Autor:in)

    Erscheinungsdatum :

    1973


    Format / Umfang :

    37 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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