[1] The D.III was an (nearly) equal-span biplane powered by a 160 hp (119 kW) Siemens-Halske Sh.III bi-rotary engine.

After only seven to 10 hours of service, however, the Sh.III engines started showing serious problems with overheating and piston seizure.

[6] The remaining D.III aircraft were returned to the Siemens-Schuckert factory, where they were retrofitted with new Sh.IIIa engines, an enlarged rudder, and cutaway cowlings that provided improved airflow.

[1] In July 1918, the D.III returned to active service as an interceptor with home defense squadrons.

Data from German Aircraft of the First World War,[7] The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985),[8] The Complete Book of Fighters[9]General characteristics Performance Armament