Abstract: Four kind of configurations are adopted to analyze the improvement of the vectored nozzle control on the flight performances at take-off,where the baseline aircraft is modified to add the horizontal canard or/and vectored nozzle The models of the aircraft longitudinal motion at the different progresses of the take-off are established The system controllers of the integrated flight/vectored nozzle control system at take-off are respectively designed according to the configurations The simulations of the aircraft at take-off are made on the established models and nonlinear propulsion system model The results prove that the designed system controllers are available to implement the take-off mission The major specifications prove that the vectored nozzle control can significantly improve the flight performances at take-off when appropriately coordinated with the aerodynamic control effectors