Messerschmitt Bf 109 109 was steadily being supplemented by the Focke-Wulf Fw 190. It was commonly called the Me 109, most often by Allied aircrew and even among the German aces themselves, even though this was not the official German designation. It was designed by Willy Messerschmitt and Robert Lusser, who worked at Bayerische Flugzeugwerke during the early to mid-1930s. Whilst the 109 was conceived as an interceptor, later models were developed to fulfill multiple tasks, serving as bomber escort, fighter-bomber, day-, night-, all-weather fighter, ground-attack aircraft, and as reconnaissance aircraft. It was supplied to and operated by several states during World War
Messerschmitt Bf 109 a practice that was also used for other German aircraft designs. The G-6 variant was nicknamed by "Luftwaffe" personnel as "Die Beule" ("the bump/bulge") because of the cowling's characteristic, bulging covers for the breeches of the 13 mm (.51 in) MG 131 machine guns, with the separate "Beule" covers eliminated by the time of the G-10 model's introduction of a subtly reshaped upper cowling. In July 1937, not long after the public debut of the new fighter, three Bf 109Bs took part in the Flugmeeting airshow in Zürich under the command of Major Seidemann. They won in several categories: First