The full scale aeroacoustics wind tunnel at FKFS, last modernized in 2014, is one of the most state-of-the-art of its kind in Europe for aerodynamic testing of passenger cars, vans and racing cars. In addition to acoustic measurements, other extensive testing options are available for measuring forces, pressures and speeds, as well as air flow visualization.

The wind tunnel features a horizontal air line with an open jet test section (Göttingen-type wind tunnel). In order to represent the flow conditions of a vehicle driving on a road surface as realistically as possible, tests are carried out with rotating wheels and moving ground in the wind tunnel. This is done using a 5-belt system, consisting of a moving center belt and four wheel drive units, combined with different boundary layer conditioning systems.