Air-to-air missile post-stall flip backward launch method

To shorten the response time of air-to-air missile and realize rapid attack on backward target in close combat, a rapid backward-launching method of short-range air-to-air missile is developed, which takes advantage of the static instability of missile at large/very large angle of attack, auxiliary jet direct force control and active rudder deflection control. To simulate the influence of preset rudder deflection, jet direct force and active rudder deflection control strategy in the new launching method, a high-precision computational fluid dynamics/flight dynamics numerical simulation method coupling with active rudder deflection control strategy is developed based on the dynamic Chimera grid. Numerical simulation results show that the proposed method can achieve rapid reorientation of the missile in 1.53 s, and maintain a stable and controllable attitude at the end of the flipping phase. The new method can reduce the response time of over-the-shoulder launch to about 1/10 of the traditional method.