Messerschmitt Bf 109 11 July 1938 when Erhard Milch finally allowed Willy Messerschmitt to acquire the company. All Messerschmitt aircraft that originated after that date, such as the Me 210, were to carry the "Me" designation. Despite regulations by the RLM, wartime documents from Messerschmitt AG, RLM and "Luftwaffe" loss and strength reports continued to use both designations, sometimes even on the same page. All extant airframes bear the official "Bf 109" designation on their identification plates, including the final K-4 models. The aircraft was often referred to by the folk-designation, 'Me 109', particularly by the Allies. The aircraft was often nicknamed "Messer"
Messerschmitt Bf 109 operational history (Fighter Controller or "Jafü"), considering that many of the unit's pilots had experience flying the Bf 109Gs of the "Regia Aeronautica" over Sicily, directed that the Fiat G.55s of II° "Gruppo Caccia" would be replaced by Bf 109Gs. Ex-JG 4 Bf 109 G-6 aircraft started arriving at Cascina Vaga on 29 May, and two G-12 trainers were delivered two weeks later. By 22 June, the unit was ready for its first operations. The unit's first operation with the Bf 109 occurred on 22 June 1944; eleven Bf 109s sortied from the airfield, although nothing was achieved. I°Gr.C continued to use