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DRG Class 84

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Title: DRG Class 84  
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Subject: 2-10-2, Berliner Maschinenbau, Class 84, Friedrich Wilhelm Eckhardt
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DRG Class 84

DRG Class 84
Number(s): DRG 84 001–012
Quantity: 12
Manufacturer: Schwartzkopff 84 001-002 + 84 005**-012**, Orenstein & Koppel 84 003*- 004*
Year(s) of manufacture: 1935–1937
Retired: 1968
Wheel arrangement: 2-10-2
Axle arrangement: 1'E1' h3, 1'E1' h2*
Gauge: 1,435 mm
Length over buffers: 15,550 mm /15,950 mm*
Service weight: 133.6 t
Adhesive weight: 91.3 t
Axle load: 18.3 t
Top speed: 70 km/h / 80 km/h**
Indicated Power: 1,426 PSI
Leading wheel diameter: 850 mm
Trailing wheel diameter: 850 mm
No. of cylinders: 2*, 3
Cylinder bore: 500 mm
Piston stroke: 660 mm
Boiler Overpressure: 16 bar
Grate area: 3.76 m²
Superheater area: 85.00 m²
Evaporative heating area: 210.10 m²
Features: 84 003*/84 004* with Luttermöller axles on the outer coupled axles

The German DRG Class 84s were standard (see Einheitsdampflokomotive) goods train tank locomotives with the Deutsche Reichsbahn. A total of twelve engines were placed into service by the Reichsbahn between 1935 and 1937. The machines were given operating numbers 84 001–012. They were worked on the Müglitz Valley Railway (Müglitztalbahn) between Heidenau and Altenberg in the Ore Mountains (Erzgebirge), for which they were specially designed to negotiate tight curves. They were manufactured by the firms of Schwartzkopff and Orenstein & Koppel. One feature was that they were fitted with Schwartzkopff-Eckhardt II bogies.

In the Second World War a large number of the engines were damaged and had to be sidelined as a result. The vehicles were taken over by the DR in East Germany after the war. The engines were mainly used between Schwarzenberg and Johanngeorgenstadt.

Between 1966 and 1968 all the Class 84 engines were retired apart from one. None, however, has survived.

See also

External links

  • There is a relevant English-language forum at Railways of Germany
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