 In 1938, production of the Messerschmitt Bf 109 began, and from 1941 onwards, the Focke-Wulf Fw 190 became the mainstay of AGO's production.In 1935, the design department was re-established, with the first new AGO aircraft becoming the AGO Ao 192 "Kurier" of 1937.A design for a heavy fighter project, the Ao 225 did not progress past the wind-tunnel stage and even the 8−225 RLM airframe designator for the type was withdrawn by the RLM and reassigned to Focke-Achgelis.