The first example of the D.XII used a 134 kW (180 hp) Mercedes D.IIIaengine and had balanced, parallel-chord ailerons. The second, built in April 1918, featured unbalanced, inversely tapered ailerons and Bohme undercarriage with pneumaticshock absorbers. Although it was initially fitted with the Mercedes engine, it was later re-engined with a BMW IIIa producing 138 kW (185 hp). In this form, the D.XII competed in the third Adlershof D-Type Contest in October 1918. No further aircraft were built.