History of Siemens-Schuckert D. III
The Siemens-Schuckert D-series fighters evolved from captured French Nieuport 11 aircraft. The D.III appeared as an improved D.I - a design that came too late to be of much use, and was therefore classified as a trainer.
The D.III was developed from the longer-span D.IIc prototype, with smaller propellers and shorter landing gear.
Production of the D.III began with the first 50 aircraft, all arriving in late February 1918. The D.III is well-received by pilots because it exhibits unparalleled climb characteristics that are essential in any air battle.
However, the honeymoon was quickly over as the 160 horsepower continued to overheat after only 10 hours of operation. While the engine issues were resolved, the D.III was phased out and replaced by the Fokker D.VII.
The D. III systems were returned to service in July 1918, with their engines tuned for better cooling and redesigned rudders. Thirty of these "new build" D.III series aircraft were delivered and entered service immediately.
The D.III was eventually followed by the D.IV, another D. series design developed from the short-span D.IIc prototype.
Specification
Basic
Production
Roles
- Fighter
Dimensions
18.70 ft (5.7 m)
27.66 ft (8.43 m)
2.8m
Weight
534 kg
725 kg
Performance
Performance
180 km/h (97 knots)
26,247 ft (8,000 m; 4.97 mi)
384 m/min
Armor
Default:
2 x 7.92mm machine guns
Changes
D.I - Pilot Instructor; Nieuport 11 direct copy; 95 produced.
D.II - Prototype; Siemens-Halske Sh III 160 hp Wankel engine; new engine larger airframe; larger propeller blades.
D.II - Bigger and wider hull
D. IIa - Prototype
D.IIb - Prototype
D. IIc - 2 prototypes (long and short span)
D.IIe - Prototype
D.III - Powerplant upgraded to Siemens-Halske 160 hp rotary engine.
D. IV - Late and post-armistic production variant; 60 produced.
D.V - Proposed Sesquiplane variant
D.VI - Parasol Monoplane variant becomes E.I.




