Oesau was aged 30 at the time of his death. He had a total of 127 kills gained over 300 missions. 27 were Spitfires, 14 four-engined bombers, 44 were scored on the Eastern Front and 9 in the Spanish Civil War.
At the age of 30, Oesau passed away. Throughout his career, he achieved a total of 127 aerial victories across 300 missions. Specifically, he shot down 27 Spitfires, 14 four-engine bombers, 44 on the Eastern Front, and 9 in the Spanish Civil War.