The purpose of this study was to assist in the development of flight duration parameters for scheduling aircrew work-rest cycles. Twenty-four Airmen were selected to represent the USAF pilot population on the basis of flight aptitude scores, class II flight physicals, and personal interviews. Each received an intensive 7-day flight program in Link GAT-1 Trainers. Then half of the subjects were randomly assigned to a schedule that regularly alternated 12-hr duty days with 12-hr rest periods for 4 days. The remaining subjects followed a scheduled with duty days of 12, 24, 24, and 12 hr, with a 12-hr rest period between duty days. During each duty day, all subjects flew two 4.5-hr simulated flights. Flying performance was evaluated every hour by both simple and complex flight maneuver tests, administered and scored by a PDP-12 computer. The subject's threshold of information processing speed was determined hourly by a Discrete Information Processing Test (DIPT). (The DIPT is an adaptive, computer-controlled task developed for eventual use in the actual flight environment.) Continuous heart rate (HR), heart rate variability (HRV), fatigue, sleepiness scores, and sleep logs were collected throughout each mission.


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    Title :

    Fatigue Stressors in Simulated Long-Duration Flight. Effects on Performance, Information Processing, Subjective Fatigue, and Physiological Cost


    Contributors:

    Publication date :

    1980


    Size :

    190 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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