Württemberg Class C  DRG Class 18.1 | 
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Hauling the Orient Express  | 
| Type and origin | 
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 | Builder | Esslingen | 
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 | Build date | 1909–1921 | 
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 | Total produced | 41 | 
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| Specifications | 
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 Configuration:
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 |  • Whyte | 4-6-2 | 
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 | Gauge | 1,435 mm (4 ft 8+1⁄2 in) | 
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 | Leading dia. | 1,000 mm (3 ft 3+1⁄4 in) | 
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 | Driver dia. | 1,800 mm (5 ft 10+3⁄4 in) | 
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 | Trailing dia. | 1,250 mm (4 ft 1+1⁄4 in) | 
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 Length:
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 |  • Over beams | 21,855 mm (71 ft 8+1⁄2 in) | 
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 | Axle load | 15.9 tonnes (15.6 long tons; 17.5 short tons) | 
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 | Adhesive weight | 47.7 tonnes (46.9 long tons; 52.6 short tons) | 
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 | Service weight | 85.2 tonnes (83.9 long tons; 93.9 short tons) | 
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 | Water cap. | 20.0 or 30.0 m3 (4,400 or 6,600 imp gal; 5,300 or 7,900 US gal) | 
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 | Boiler pressure | 15 kg/cm2 (1.47 MPa; 213 psi) | 
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 | Heating surface: |  | 
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 |  • Firebox | 3.96 m2 (42.6 sq ft) | 
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 |  • Evaporative | 205.14 m2 (2,208.1 sq ft) | 
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 Superheater:
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 |  • Heating area | 54.43 m2 (585.9 sq ft) | 
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 | High-pressure cylinder | 420 mm (16+9⁄16 in) | 
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 | Low-pressure cylinder | 620 mm (24+7⁄16 in) | 
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 | Piston stroke | 612 mm (24+1⁄8 in) | 
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| Performance figures | 
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 | Maximum speed | 115–120 km/h (71–75 mph) | 
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 | Indicated power | 1,840 PS (1,350 kW; 1,810 hp) | 
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| Career | 
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 | Numbers | - K.W.St.E.: 2001–2041
 - DRG: 18 101–137
 
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 | Retired | 1955 | 
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The steam locomotives of the Württemberg Class C were built for the Royal Württemberg State Railways in the early 20th century and were Pacifics designed for hauling express trains. They were the smallest state railway Länderbahn locomotives with a 4-6-2 wheel arrangement.