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