舰载机安全逃逸复飞的参数适配包线

The bolter characteristics have significant effect on the approach airspeed determination of a carrier-based aircraft, the grade limits of ship speed and sea state during carrier landing. Three parameters are proposed as the safety indexes according to the bolter task requirements. They are taxing distance of the bolter, angle of attack angle of attack increment (the peak angle of attack during bolter minus the approach angle of attack), and pitch angle of touchdown. Numerical pilot model is formulated, and the parameter suitability envelope which satisfies the bolter safety requirements is obtained based on the digital virtual flight testing method. The results show that, for each landing weight, there is a best approach airspeed range to minimize the bolter taxing distance. The angle of attack increment and the pitch angle of touchdown respectively determine the upper and lower boundary of approach airspeed. Movement of the center of gravity will change the position and range of the parameter suitability envelope, but the envelope shape is nearly unchanged. Reducing the ship speed will narrow the parameter suitability envelope. The success rate corresponding to each point in the parameter suitability envelope provides a reference for the bolter safety judgment under different grades of sea state.