GOM’s measurement systems provide strong support to the aerospace market and its suppliers by providing accurate part geometry and materials properties. The relevant data was used for finite element simulation and flow evaluation, and the real data acquired in the wind tunnel and the environmental test box were in comparison for simulation verification and input parameters for reverse engineering. Optical 3D scanners are specially suitable for quality control of complicated free-form gear rack surfaces. For that reason, they are used to identify aircraft engine airfoils, property gas and steam turbines, and turbochargers.