The German order involved a production run of 294 G.91s that were domestically constructed in Germany under a license production arrangement by Flugzeug-Union Süd, a consortium of former competitors Messerschmitt, Heinkel and Dornier; Messerschmitt produced the forward fuselage and tail assembly, Dornier manufactured the center fuselage along with final assembly and flight testing, while Heinkel fabricated the wing. The G.91 holds the distinction of being the first combat aircraft to be manufactured in Germany since the Second World War. On 20 July 1961, the first German-built G.91 conducted its first flight from Oberpfaffenhofen Airfield.