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

Year:
1917
Status:
Retired, out of service
Staff:
1

Production

[130 units]:
Siemens-Schuckert Plant - Germany

Roles

- Fighter

Dimensions

Length:

18.70 ft (5.7 m)

Width:

27.66 ft (8.43 m)

Height:

2.8m

Weight

Curb Weight:

534 kg

MTOW:

725 kg

(difference: +421lb)

Performance

1 x Siemens-Halske Sh III 160 hp 11-cylinder rotary air-cooled engine driving a four-bladed propeller unit on the nose.

Performance

Maximum Speed:

180 km/h (97 knots)

Service Limit:

26,247 ft (8,000 m; 4.97 mi)

Rate of climb:

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.

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