In common with other German "civil" aircraft of the time, however, the type had planned with a military version in mind. One of the unsold A 32s was flown to Sweden and this reappeared in 1927 from Junkers' Swedish subsidiary, AB Flygindustri of Limhamn-Malmo, as a light bomber and armed reconnaissance aeroplane, marketed as the K 39.
The crew of three was accommodated along the top of the fuselage in open cockpits. Armament consisted of five Lewis 0.303 in (7.7 mm) machineguns, the pilot controlled two fixed guns, the observer in the rear cockpit had two trainable guns, and the observer in the central cockpit could descend into a ventral gondola that provided excellent fields of vision and was also armed with a single gun. A bomb load of 220 lb (100 kg) could also be carried. The K 39 performed adequately, but received no production order.
Span: 58 ft 5.6 in (17.82 m)
Length: 36 ft 1.1 in (11.00 m)
Height: 11 ft 1.1 in (3.38 m)
Wing area: 430.57 sq.ft (40.00 sq.m)
Empty weight: 4,299 lb (1,980 kg)
Max takeoff weight: 7,716 lb (3,500 kg)
Max speed: 143 mph (230 kmh)
Service ceiling: 19,685 ft (6,000 m)
Endurance: 4 hr 30 min."