Flight Safety Risk Analysis Method During TakeOffPhase ^*

In this paper, a flight safety risk analysis method is present aiming at both the tail strike and slow rotation hazards. A fuzzy comprehensive model is present to perform the safety risk assessment for takeoff phases. The basis of the model are the extracted characteristics and key flight parameters that generated by flight data from QAR. Then practical flight data are collected to show the validity of hazard analysis process. The experimental results show that the proposed scheme is effective for takeoff phase analysis.