Aerodynamic Character Analysis for the Deflectable Nose Missile

Using the wind tunnel experimental data, the main aerodynamic coefficients are select, computed and analyzed for vehicles with deflectable nose and canard controls during different trim conditions. By analyzing the difference between aerodynamic coefficient of the two vehicle, the deflectable nose control offers increased control effectiveness 、maneuverability and stability ,reduces the aerodynamic drag. The performance of vehicle is enhanced with the deflectable nose control.