A robust adaptive flight control based on second-order nonsingular terminal sliding mode control is proposed
for the problems existing in aircraft re-entry phase such as model uncertainty and complex aerodynamic conditions, which
can guarantee the tracking error convergence to zero in finite time. The effects cased by inside and outside disturbances are
cancelled by on-line upper bounds adaptive identification without any information in advance. Finally, simulation is made
through the assumption that aerodynamic parameters perturb 50%. Simulation results show the speed ability and robustness
of the proposed scheme.