Militärakademie für Ingenieure der Luftstreitkräfte „Prof. N. J. Schukowski“
In May 1925, Fiebig, now a "Hauptmann" (captain), led a team of seven expert German World War I pilots (known as "Gruppe Fiebig") to the Soviet Union, where they were employed as special air force advisers and instructors at various training schools in the Moscow area. Fiebig was seconded to the command staff of the Zhukovsky Air Force Engineering Academy.