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
The Hardest Day considerable effect on Fighter Command, they prepared to launch their all-out assault on the RAF the following day. By 13 August, German air strength had reached acceptable levels. After bringing its serviceable rates up, the Luftwaffe carried out heavy attacks under the codename "Adlertag" (or Eagle Day), with 71 per cent of its bomber force, 85 per cent of its Messerschmitt Bf 109 fighter units, and 83 per cent of its Messerschmitt Bf 110 heavy fighter/fighter-bomber units operational. The day went badly for the Germans, who failed to impair Fighter Command and its bases or command and control system. This