A resurvey of shift work-related fatigue in MQ-1 predator unmanned aircraft system crewmembers
Tvaryanas, Anthony P.
Miller, Nita Lewis
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A previous study showed shift working crewmembers in a MQ-1 Predator unmanned aircraft system (UAS) squadron had significantly increased fatigue, emotional exhaustion, and burnout relative to traditional aircrew from another high-demand, low density weapon system. This study presents the results of a follow-up survey of this population of UAS crewmembers who were supporting reachback teleoperations using a modified rotational shift work schedule. Specifically, shift work-related increases in fatigue, sleepiness, and risk for performance decrements were examined. Shift system features and individual and situational differences associated with fatigue were also explored. Finally, shift system features of several types of schedules were assessed through modeling and simulation. The study found no significant reduction in reported fatigue despite prior modifications to the shift work schedule. It also demonstrated the potential for inadequate staffing levels to magnify the adverse effects of shift work.
311th Performance Enhancement Directorate
NPS Report NumberNPS-OR-08-001
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