Three experiments designed to determine the triaxial vibration experienced by pilots in the P-531 (Scout) helicopter are described. In the first experiment, eight Scout helicopters were flown by the same pilot in seven different flight conditions. In each condition, the mean and range of floor vibration were determined at frequencies of maximum vibration for each of three perpendicular axes. In the other two experiments, eight pilots flew in a single Scout helicopter with known floor vibration characteristics. The spectra of triaxial head vibration during four flight conditions were determined from trial two. In trial three, vertical vibration at the heads and at the interface between their bodies and the seat cushion were determined during the hover. The vibration data obtained from the three experiments are presented together with detailed consideration of the differences in vibration level associated with the different flight conditions, vibration axes, helicopters, and pilots. (Author)


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    Title :

    The Transmission of Triaxial Vibration to Pilots in the Scout AH Mki Helicopter


    Contributors:

    Publication date :

    1972


    Size :

    82 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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