01/31/2009. The experimental FS-28 was built by the Akademische Fliegergruppe Stuttgart e.V. (academic group of flyers, commonly known as Akaflieg Stuttgart), assisted by the University of Stuttgart and aircraft manufacturer Wolf Hirth, with the aim to transfer high-quality aerodynamic glider shapes to powered aircraft.
Materials used were glass-reinforced plastic, rigid foam, and aluminum, the powerplant was an 115 hp four-cylinder horizontally-opposed, air-cooled Lycoming O-235-E2A. Construction was started in 1969 and D-EAFS flew for the first time on December 20, 1972.