This paper presents an extension of the Kulfan class-shape transformation method for the parameterization of aircraft component geometry. The VT-CST code represents a practical implementation of the class-shape transformation method in an object-oriented C++ code for use within a multidisciplinary design optimization framework for design studies of a tailless supersonic aircraft. Extensions to the class-shape transformation method incorporated into VT-CST include the generation of a blended wing fuselage, cowls and inlet ramps for embedded engines, automatic handling of centerline continuity, shape normalization and scaling, fuselage area-ruling capabilities, conical cambering, airfoil shape matching, and control surfaces, among others. Examples demonstrating the utility of the method are given.
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