The Measurement of Man-Helicopter Performance as a Function of Extended Flight Requirements and Aviator Fatigue.

Abstract : Field commanders have long been concerned about the impact of fatigue on aviator effectiveness, especially where aviators are called upon to fly numerous successive stress-related missions (e.g., combat and/or rescue work). At present there is little specific information upon which the commander can base his crew rest decision. The US Army Aeromedical Research Laboratory sought to answer this need by observing pilots in an actual flight situation. In this study six pilots flew a helicopter for 11 1/2 hours per day for 5 days with 3.5 hours of sleep per day. Data collection included biochemical, visual, psychological and in-flight measurements. This report includes a critical literature review and describes the methodology of the study. It is intended to serve as a detailed background for the analyses to follow. (Author)

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