During 1933, the
German aircraft manufacturer
Bayerische Flugzeugwerke (BFW) received a contract from the
Reichsluftfahrtministerium (RLM/German Aviation Ministry) to produce an aircraft to compete in the
4th Challenge International de Tourisme (1934). The resulting aircraft, which was internally designated as
M 37 and subsequently received the official designation
Bf 108, was a four-seat sports/recreation aircraft designed by the
aeronautical engineer Willy Messerschmitt. In terms of its design, the Bf 108 represented a departure from many of the company's existing design practices; foremost of which, it was the first aircraft of its size to use all-metal stressed skin construction. Even during these early flights, the aircraft proved to be relatively safe yet quick, possessing excellent low-speed flight characteristics and being pleasant to fly. Furthermore, the aircraft's metal structure proved to be fairly maintenance-friendly. During 1934, the first production-standard model, designated
Bf 108A, made its first flight. One year later, it was followed by the
Bf 108B, which was powered by the substantially larger, 12.67 litre displacement
Argus As 10 air-cooled inverted V8 engine. ==Operational history==