In September 1944, Major Nowotny was put in charge of Kommando Nowotny, equipped with the Me 262 jet fighter. The unit consolidated a number of test units and was tasked with acquiring tactical knowledge and experience of Me 262 operations. The unit was based on two airfields northwest of Osnabrück: Achmer and Hesepe. Nowotny was besieged with difficulties in operationally testing the jet fighter. In addition to staving off the increasing Allied fighter presence the jets attracted, he was also beset with the technical difficulties a new and immature technology presented. By 7 November 1944, Nowotny had claimed three victories in the new jet fighter. Nowotny took off on 8 November 1944, flying against USAAF bombers with a fighter escort. The exact circumstances of Nowotny’s death remain uncertain. Ground personnel reported hearing combat above the clouds. Nowotny reported he had downed a B-24 four-engine bomber and probably destroyed a P-51 fighter. He then reported an engine failure before making a garbled transmission referring to “burning” over the radio. His Me 262 A-1a (W.Nr. 110 400) “White 8” was seen to dive vertically out of the clouds and crash at Epe, 2.5 kilometres east of Hesepe. It is generally accepted that he was shot down by 1st Lt Edward “Buddy” Haydon of the 357th Fighter Group, USAAF and Capt Ernest “Feeb” Fiebelkorn (9 victories) of the 20th Fighter Group, USAAF whom shared a Me 262 victory at 12:45 over Achmer that day. Walter Nowotny flew over 442 missions in achieving 258 victories. He recorded 255 of his victories over the Eastern front. Of his three victories recorded over the Western front, 2 were four-engine bombers and all 3 victories were gained while flying the Me 262 jet fighter. He claimed 24 victories over Il-2.