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Specifications
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	30 in (0.762 m)
Driver dia.	60 in (1.524 m)
Trailing dia.	42 in (1.067 m)
Minimum curve	21° (274.37 ft or 83.63 m)
Length	68 ft 4 in (20.83 m)
Adhesive weight	143,000 lb (65,000 kg)
Loco weight	200,000 lb (91,000 kg)
Tender weight	123,000 lb (56,000 kg)
Fuel type	Coal or Oil
Fuel capacity	18,000 lb (8,200 kg) coal or; 2,500 US gallons (9,500 L; 2,100 imp gal) oil
Water cap.	6,500 US gallons (25,000 L; 5,400 imp gal)
Firebox:
• Grate area	47 sq ft (4.4 m2)
Boiler pressure	200 psi (1.38 MPa)
Heating surface:
• Firebox	179 sq ft (16.6 m2)
• Tubes and flues	1,985 sq ft (184.4 m2)
• Total surface	2,164 sq ft (201.0 m2)
Superheater:;
• Heating area	625 sq ft (58.1 m2)
Cylinders	Two, outside
Cylinder size	21 in × 28 in (533 mm × 711 mm)
Valve gear	Walschaerts
Valve type	10-inch (254 mm) piston valves

Type and origin
Type and origin
Power type	Steam
Builder	American Locomotive Company (60),; Baldwin Locomotive Works (70),; Lima Locomotive Works (70)
Build date	1942
Total produced	200

USATC S200
USATC S200
	No. 46224 at TCDD Open Air Steam Locomotive Museum, Ankara, Turkey
Power type
Type and origin
Power type	Steam
Builder	American Locomotive Company (60),; Baldwin Locomotive Works (70),; Lima Locomotive Works (70)
Build date	1942
Total produced	200
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	30 in (0.762 m)
Driver dia.	60 in (1.524 m)
Trailing dia.	42 in (1.067 m)
Minimum curve	21° (274.37 ft or 83.63 m)
Length	68 ft 4 in (20.83 m)
Adhesive weight	143,000 lb (65,000 kg)
Loco weight	200,000 lb (91,000 kg)
Tender weight	123,000 lb (56,000 kg)
Fuel type	Coal or Oil
Fuel capacity	18,000 lb (8,200 kg) coal or; 2,500 US gallons (9,500 L; 2,100 imp gal) oil
Water cap.	6,500 US gallons (25,000 L; 5,400 imp gal)
Firebox:
• Grate area	47 sq ft (4.4 m2)
Boiler pressure	200 psi (1.38 MPa)
Heating surface:
• Firebox	179 sq ft (16.6 m2)
• Tubes and flues	1,985 sq ft (184.4 m2)
• Total surface	2,164 sq ft (201.0 m2)
Superheater:;
• Heating area	625 sq ft (58.1 m2)
Cylinders	Two, outside
Cylinder size	21 in × 28 in (533 mm × 711 mm)
Valve gear	Walschaerts
Valve type	10-inch (254 mm) piston valves
Tractive effort
Performance figures
Tractive effort	35,000 lbf (155.7 kN)
Factor of adh.	4.08
Operators
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:

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

^ Tourret 1995, p. 201.
^ Hughes 1981, pp. 70, 133.
^ Cotterell 1984, p. 133.
^ Hughes 1981, p. 125.

Cotterell, Paul (1984). The Railways of Palestine and Israel. Tourret Publishing. pp. 28, 127. ISBN 0-905878-04-3.
Hughes, Hugh (1981). Middle East Railways. Continental Railway Circle. pp. 98, 116. ISBN 0-9503469-7-7.
Tourret, R. (1995). Allied Military Locomotives of the Second World War. Abingdon, Oxon: Tourret Publishing. pp. 201–207. ISBN 0-905878-06-X.