Disturbance signals in a feedback control system, effects of a third poleand a zero on the second order system response, the steady state error of non-unity feedback closed loop systems, the Nyquist criterion, system bandwidth,stability of control systems with time delay, approaches to control systemdesign, pole-zero cancellation design, PID controller design, phase-lead-lagdesign, robust control systems, A/C longitudinal and lateral dynamic stabilities,longitudinal and lateral responses, response to gusts.