 "Jastaschule" lasted from 7 April 1917 until 23 June 1917.Upon graduation, he was assigned to Royal Prussian Jagdstaffel 4, which was becoming part of Germany's first fighter wing, Jagdgeschwader II.His arrival in Jasta 4 was coincidental with that of his commanding officer, Oberleutnant Kurt-Bertram von Döring.