J.Herris Otto, AGO and BFW Aircraft of WWI (A Centennial Perspective on Great War Airplanes 37)

Ago School Biplane

   The Ago Military Biplane Pusher was a conventional two-bay biplane pusher design powered by a 150 hp Argus engine. There was no fixed fin, a single rudder, and the horizontal tailplane was monoplane.
   The tail support design was a high-drag lattice similar to many Allied designs. This design preceded the C.I which had tail booms and two fins and rudders that reduced drag and improved strength and stability.