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 operational history is called "Tavallisesta kuriositeetiksi – Kahden Keski-Suomen Ilmailumuseon Messerschmitt Bf 109 -lentokoneen museoarvo" (From regular to a curiosity – The museal value of two Messerschmitt Bf 109s at the Central Finland Aviation Museum). Switzerland took delivery of the first of its 115 Bf 109s in 1938 when ten Bf 109Ds were delivered. After this, 80 109 E-3s were purchased which arrived from April 1939 until just before the German invasion of France in summer 1940. During the war, a further four 109s (two Fs and two Gs) were acquired by the Swiss Air Force through internment. The 109Es were supplemented