In the 1930s Erich Bachem designed the Aero-Sport camping trailer built from plywood by the glider company Wolf Hirth in Kirchheim unter Teck. Until 1942 Bachem served as technical director for the aircraft manufacturer Fieseler. In February 1942 he founded Bachem-Werke GmbH, a supplier of spare parts for the aircraft industry, in Waldsee, Baden-Württemberg.