Two open cockpits accommodated the pilot and tail-gunner, and the empennage was designed with twin vertical surfaces to maximise the rearward field of fire.
The main units of the fixed, tailskid undercarriage shared part of the truss structure that braced the wings.
The only operational use of the type was China (Nanking government), which bought ten aircraft in 1931, and was presented one more in 1934 (the last one was named the T'ien C'hu No.1, after the factory, which had funded it).
Although gunner Shen's gun jammed, pilot Shi continued to dogfight the Japanese until he had to force-land his Junkers after he was shot and the engine damaged.
Three aircraft were used by the Reichswehr clandestine training facility at Lipetsk and a small number of the unarmed civil version were purchased by the DVS.