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"
Johannes Gouws squadron's pilots soon learnt to operate in pairs and to stay out of range of small arms fire from the ground, to reduce heavy casualties; however, as Erwin Rommel's Afrika Korps prepared to go on the offensive, Luftwaffe Messerschmitt Bf 109 fighters concentrated on intercepting Tac.R aircraft. Casualties rose rapidly until HQ Desert Air Force ordered a fighter escort for all Tac.Rs. One of the casualties was on 9 April 1942, a P-40 Tomahawk flown by Lieutenant Gouws on a mission over the Chichiba-Ezzeiat area was intercepted by two Bf 109’s and he was shot down by Luftwaffe flying ace