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Siemens-Schuckert D.III

By Wikipedia,
the free encyclopedia,

Siemens-Schuckert D.III
Role Fighter
Manufacturer Siemens-Schukert Werke
First flight October 1917
Introduced April 1918
Primary user Luftstreitkräfte

The Siemens-Schuckert D.III was a German single-seat fighter built by Siemens-Schuckert Werke.

Design and development

The D.III was a development of the earlier Siemens-Schuckert D.IIc prototype. The D.III was an equal-span sesquiplane powered by a 160 hp (119 kW) Siemens-Halske Sh.III bi-rotary engine. Idflieg placed an order for 20 aircraft in December 1917, followed by a second order of 30 aircraft in February 1918.

Operational history

D.III with cutaway cowling
D.III with cutaway cowling

Approximately 41 D.IIIs were delivered to frontline units between April and May 1918. Most aircraft were supplied to Jagdgeschwader II, whose pilots were enthusiastic about the new aircraft's handling and rate of climb. After only seven to 10 hours of service, however, the Sh.III engines started showing serious problems with overheating and piston seizure. The problem was later traced to the Voltol mineral oil that was used to replace the now-scarce castor oil. Furthermore, the close-fitting engine cowling provided inadequate cooling to the engine.

In late May 1918, Jagdgeschwader II replaced its D.IIIs with the older Fokker Dr.I. 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. A further 30 new production D.IIIs incorporated these modifications. Total production amounted to 80 aircraft.

In July 1918, the D.III returned to active service as an interceptor with home defense squadrons. By this time, the D.III had been replaced in production by the Siemens-Schuckert D.IV.


 German Empire


General characteristics

  • Crew: One
  • Length: 18 ft 8½ in (6.70 m)
  • Wingspan: 27 ft 7¾ in (8.43 m)
  • Height: 9 ft 2¼ in (2.80 m)
  • Wing area: 203.44 ft² (18.90 m²)
  • Empty weight: 1,177 lb (534 kg)
  • Max takeoff weight: 1,598 lb (725 kg)
  • Powerplant:Siemens-Halske Sh.III bi-rotary, 160 hp (119 kW)



  • 2× 7.92 mm (0.31 in) LMG 08/15 machine-guns


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Published - July 2009

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