A Comprehensive Helicopter Pilot Fatigue Evaluation Model for Offshore Operation

In this paper, we build an analysis index system model to evaluate the fatigue levels of offshore helicopter pilots. The system is established using the analytic hierarchy process (AHP) based on a survey covering sixty-six offshore helicopter pilots and ten flight safety experts. The factors and indicators of the system are selected according to related studies in civil aviation industry. The weight of each factor and indicator is determined using the order relation analysis method (G1 method) to analysis ten questionnaires replied by experts. The evaluated pilots fatigue levels are compared with the self-report fatigue levels for the validation of the model. Results show that the presented evaluation model is scientific and feasible for estimating the fatigue states of the pilots efficiently, thus can be employed by offshore helicopter companies to enhance the flight safety.