An application of robust LQG/LTR control design methodology to a centralized integrated flight/propulsion control (IFPC) system design for STOL/MTD aircraft is presented.The emphasis is put on formulating the Robust Servo LQR (RSLQR)control synthesis problem.A conversion parameter is introduced in controller design to improve the comparability of the system parameters.A detailed evaluation is completed for a controller obtained from RSLQR control design.The results indicate that a RSLQR control design meets the IFPC control system with thrust vectoring.