Staffel of Jagdgeschwader 3 (JG 3—3rd Fighter Wing).[6] In this function, he was promoted to Oberleutnant on 1 April 1940.[2] Nordmann was victorious over two Royal Air Force (RAF) Supermarine Spitfires on 17 October 1940 and achieved his ninth aerial victory on 6 May 1941.[7]