| USATC S200 |
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 No. 46224 at TCDD Open Air Steam Locomotive Museum, Ankara, Turkey |
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| Specifications |
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Configuration:
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| • Whyte | 2-8-2 |
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| • UIC | 1′D1′ h2 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Leading dia. | 30 in (0.762 m) |
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| Driver dia. | 60 in (1.524 m) |
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| Trailing dia. | 42 in (1.067 m) |
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| Minimum curve | 21° (274.37 ft or 83.63 m) |
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| Length | 68 ft 4 in (20.83 m) |
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| Adhesive weight | 143,000 lb (65,000 kg) |
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| Loco weight | 200,000 lb (91,000 kg) |
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| Tender weight | 123,000 lb (56,000 kg) |
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| Fuel type | Coal or Oil |
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| Fuel capacity | 18,000 lb (8,200 kg) coal or
2,500 US gallons (9,500 L; 2,100 imp gal) oil |
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| Water cap. | 6,500 US gallons (25,000 L; 5,400 imp gal) |
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| Firebox: | |
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| • Grate area | 47 sq ft (4.4 m2) |
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| Boiler pressure | 200 psi (1.38 MPa) |
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| Heating surface: | |
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| • Firebox | 179 sq ft (16.6 m2) |
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| • Tubes and flues | 1,985 sq ft (184.4 m2) |
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| • Total surface | 2,164 sq ft (201.0 m2) |
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Superheater:
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| • Heating area | 625 sq ft (58.1 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 21 in × 28 in (533 mm × 711 mm) |
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| Valve gear | Walschaerts |
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| Valve type | 10-inch (254 mm) piston valves |
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| Career |
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| Operators | USATC; War Department; TCDD; China Railway |
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| Numbers | USATC & WD: 1000–1199 |
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| Locale | Middle East, Iran, Iraq, Turkey, Italy, China |
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| Scrapped | 1959 (UK) 1959-1972 (Italy) 1973-1981 (Turkey) 1982-1983 (Iran) 1984-1986 (Iraq) 1988-1996 (China) |
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| Disposition | Most scrapped. At least two known preserved. |
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| Sources: |
The United States Army Transportation Corps (USATC) S200 Class is a class of 2-8-2 steam locomotive. They were introduced in 1941 and lent-leased to the United Kingdom for use in the Middle East during World War II.
