Many factors were considered in the algorithm such as the helicopter nonlinear flight dynamic model , the time delay of rotor wake , the air compressibility at advancing blade , the stall of retreating blade , the unsteady flapping motion of rotor blades and the aerodynamic interaction among rotor , fuselage , tail rotor and empennage 根據(jù)這一方法可以確定為完成直升機(jī)機(jī)動(dòng)飛行所需的駕駛員操縱輸入及直升機(jī)的飛行速度、角速度和飛行姿態(tài)的變化歷程。