Educational Institution: Ulyanovsk State Technical University Project description: The project goal is to show cockpit controls operation by means of T-FLEX CAD mates and transformation options. 3D model of glider with cockpit controls was designed within this project. Using this model, wing mechanization has been shown. Now this project is used within educational process for the course “Construction and design of aircraft”. Students study glider cockpit , control elements, transversal and longitudinal stability of glider using virtual 3D model.