 Lützow claimed his first aerial victory in the Battle of Britain on 16 August 1940, shooting down a Supermarine Spitfire over Kent.At the height of the Battle of Britain on 21 August 1940, it was announced that Lützow was to be appointed "Geschwaderkommodore" (wing commander) of JG 3.He officially took command of JG 3 on 25 August and was promoted to "Major" (major) on 30 August 1940.