This paper describes the implementation of optimization techniques based on control theory for wing and wing-body design. In previous studies it was shown that control theory could be used to devise an effective optimization procedure for airfoils and wings in which the shape and the surrounding body-fitted mesh are both generated analytically, and the control is the mapping function. Recently, the method has been implemented for both potential flows and flows governed by the Euler equations using an alternative formulation which employs numerically generated grids, so that it can more easily be extended to treat general configurations. Here results are presented both for the optimization of a swept wing using an analytic mapping, and for the optimization of wing and wing-body configurations using a general mesh. Reuther, James and Jameson, Antony Ames Research Center NASA-CR-198024, NAS 1.26:198024, RIACS-TR-95-01 NAS2-13721 AERODYNAMIC CONFIGURATIONS; AIRCRAFT DESIGN; BODY-WING CONFIGURATIONS; COMPUTATIONAL FLUID DYNAMICS; CONTROL THEORY; GRID GENERATION (MATHEMATICS); OPTIMIZATION; SWEPT WINGS; DIFFERENTIAL EQUATIONS; EULER EQUATIONS OF MOTION; FINITE VOLUME METHOD; RUN TIME (COMPUTERS)