Performance indices, continuous time state model, observer feedback, costfunctions, Quadratic cost functions, Weighting functions, Lagrange multipliers, linearquadratic regulator, linear quadratic Gaussian control, Hamilton equations, Riccatiequations, Kalman filter, optimal state space control system design, stabilizability,Lypunov stability analysis, use of Integral Feedback in linear quadratic regulator,effects of aeroelasticity on dynamic stability and response and case studies of A/Cdynamic systems.