USATC S200 Class

4 ft 8+1⁄2 in (1,435 mm) standard gaugeLeading dia.30 in (0.762 m)Driver dia.60 in (1.524 m)Trailing dia.42 in (1.067 m)Minimum curve21° (274.37 ft or 83.63 m)Length68 ft 4 in (20.83 m)Adhesive weight143,000 lb (65,000 kg)Loco weight200,000 lb (91,000 kg)Tender weight123,000 lb (56,000 kg)Fuel typeCoal or OilFuel capacity18,000 lb (8,200 kg) coal or
2,500 US gallons (9,500 L; 2,100 imp gal) oilWater cap.6,500 US gallons (25,000 L; 5,400 imp gal)Firebox:​ • Grate area47 sq ft (4.4 m²)Boiler pressure200 psi (1.38 MPa)Heating surface:​ • Firebox179 sq ft (16.6 m²) • Tubes and flues1,985 sq ft (184.4 m²) • Total surface2,164 sq ft (201.0 m²)Superheater:
​ • Heating area625 sq ft (58.1 m²)CylindersTwo, outsideCylinder size21 in × 28 in (533 mm × 711 mm)Valve gearWalschaertsValve type10-inch (254 mm) piston valves

Performance figures
Tractive effort	35,000 lbf (155.7 kN)
Factor of adh.	4.08

Career
Operators	USATC; War Department; TCDD; China Railway
Numbers	USATC & WD: 1000–1199
Locale	Middle East, Iran, Iraq, Turkey, Italy, China
Scrapped	1959 (UK) 1959-1972 (Italy) 1973-1981 (Turkey) 1982-1983 (Iran) 1984-1986 (Iraq) 1988-1996 (China)
Disposition	Most scrapped. At least two known preserved.

Sources:^[1]

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.

Service

Middle East

At least 85 S200s operated in the Middle East, including Egypt, Palestine and Lebanon.^[2] One was destroyed by fire at El Arish in Egypt in 1942.^[3] 29 of this batch was later supplied to Turkey where they became the TCDD 46201 Class. In 1946, another 24 were transferred to TCDD which added them to the same number series 46201–46253. 51 S200s built in 1942 served on the Trans-Iranian Railway, where they became Iranian class 42.^[4]

Europe

After the Allied invasion of Italy, 31 S200s were transferred and used there. 30 of these entered FS stock as FS Class 747 Nos. 747.001–747.030; the other one caught fire and was destroyed.

Asia

Thirty were donated to China by the UNRRA. China Railway designated these as class ㄇㄎ10 (MK10) in 1951, then reclassifying them as class 解放10 (JF10, Jiefang, "Liberation") and numbering them 3711−3740.^{[citation needed]}

Survivors

Two of the Turkish locomotives survive: 46224 at Ankara and 46244 at the Çamlık Railway Museum.

References

External links

• Alexandros Gregoriou: The USATC steam locomotives in Greece, 1947, 1959
• Trains of Turkey: 46201 to 46253