Maintenance cost prediction and evaluation of new airplane for general aircraft

In view of the problem of maintenance cost prediction of new airplane for general aircraft, a method based on the historical maintenance cost data of existing airplanes to forecast and evaluate the maintenance cost of new airplane was put forward. This method is divided into 3 steps: establishing the general aircraft structure and characteristic similarity indicators system; predicting the maintenance cost of the new airplane based on its similarity and that of the reference model; evaluating the forecast value of the maintenance cost based on the data envelopment analysis(DEA) and the adjustment value obtained in this process can be used in the initial design of the new airplane. The practical example turns out that this method can predict and evaluate the maintenance cost of the new airplane for general aircraft.