| 词条 | Siemens-Schuckert D.III | |||||||||||||||||
| 释义 |
The Siemens-Schuckert D.III was a German single-seat fighter built by Siemens-Schuckert Werke. The D.III was a development of the earlier Siemens-Schuckert D.IIc prototype.[1] The D.III was an (nearly) equal-span biplane 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.[2] Operational historyApproximately 41 D.IIIs were delivered to frontline units between April and May 1918.[2] Most aircraft were supplied to Jagdgeschwader II,[3] 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.[4] The problem was later traced to the Voltol mineral oil that was used to replace the now-scarce castor oil.[3] Furthermore, the close-fitting engine cowling provided inadequate cooling to the engine.[5] In late May 1918, Jagdgeschwader II replaced its D.IIIs with the older Fokker Dr.I.[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] A further 30 new production D.IIIs incorporated these modifications. Total production amounted to 80 aircraft.[1] In July 1918, the D.III returned to active service as an interceptor with home defense squadrons.[4] By this time, the D.III had been replaced in production by the Siemens-Schuckert D.IV. Operators
Specifications{{aircraft specifications|plane or copter?=plane |jet or prop?=prop |crew=One |capacity= |length main= 18 ft 8½ in |length alt= 5.70 m |span main= 27 ft 7¾ in |span alt= 8.43 m |height main= 9 ft 2¼ in |height alt= 2.80 m |area main= 203.44 ft² |area alt= 18.90 m² |airfoil= |empty weight main= 1,177 lb |empty weight alt= 534 kg |loaded weight main= |loaded weight alt= |useful load main= |useful load alt= |max takeoff weight main= 1,598 lb |max takeoff weight alt= 725 kg |more general= |engine (prop)=Siemens-Halske Sh.III |type of prop=bi-rotary |number of props=1 |power main= 160 hp |power alt= 119 kW |power original= |max speed main= 112 mph |max speed alt= 180 km/h |cruise speed main= |cruise speed alt= |never exceed speed main= |never exceed speed alt= |stall speed main= |stall speed alt= |range main= |range alt= |ceiling main= 26,245 ft |ceiling alt= 8000 m |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |armament=
|avionics= }} References{{commons category}}Notes1. ^1 2 Green and Swanborough 1994, p. 530. 2. ^1 Gray and Thetford 1962, p. 213. 3. ^1 VanWyngarden 2005, p. 43. 4. ^1 Gray and Thetford 1962, p. 214. 5. ^Gray and Thetford 1962, p. 215. 6. ^VanWyngarden 2005, p. 44. Bibliography{{refbegin}}
|related= |similar aircraft= |lists= |see also= }}{{Siemens-Schuckert aircraft}}{{Idflieg fighter designations}}{{World War I Aircraft of the Central Powers}} 6 : German fighter aircraft 1910–1919|Siemens-Schuckert aircraft|Sesquiplanes|Single-engined tractor aircraft|Aircraft first flown in 1917|Rotary-engined aircraft |
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