On 8 June 1942 he was promoted to Major and Geschwaderkommodore of JG 27, which he successfully led until 22 April 1943 when he joined the Staff of General der Jagdflieger.
On 8 June 1942, he was elevated to Major and commander of JG 27, which he effectively led until 22 April 1943 when he joined the staff of General der Jagdflieger.