USATC S200 Class

USATC S200
Power type	Steam
Builder	American Locomotive Company (60), Baldwin Locomotive Works (70), Lima Locomotive Works (70)
Build date	1942
Total produced	200
Configuration	2-8-2
UIC classification	1′D1′ h
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Leading wheel diameter	30 in (0.762 m)
Driver diameter	60 in (1.524 m)
Trailing wheel diameter	42 in (1.067 m)
Minimum curve	21°
Length	68 ft 4 in (20.83 m)
Weight on drivers	143,000 lb (64.9 t)
Locomotive weight	200,000 lb (90.7 t)
Tender weight	123,000 lb (55.8 t)
Fuel type	Coal or Oil
Fuel capacity	18,000 lb (8.2 t) coal or 2,500 US gallons (9,500 l; 2,100 imp gal) oil
Water capacity	6,500 US gallons (25,000 l; 5,400 imp gal)
Boiler pressure	200 psi (1.38 MPa)
Firegrate area	47 sq ft (4.4 m2)
Heating surface: Tubes and flues	1,985 sq ft (184.4 m2)
Heating surface: Firebox	179 sq ft (16.6 m2)
Heating surface: Total	2,164 sq ft (201.0 m2)
Superheater area	625 sq ft (58.1 m2)
Cylinders	Two, outside
Cylinder size	21 × 28 in (533 × 711 mm)
Valve gear	Walschaerts
Valve type	10-inch (254 mm) piston valves
Tractive effort	35,000 lbf (155.7 kN)
Factor of adhesion	4.08
Career	USATC; War Department
Number	USATC & WD: 1000–1199
Locale	Middle East, Iran, Iraq, Turkey, Italy

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 the Second World War.

At least 85 S200's operated in the Middle East, including Egypt, Palestine and Lebanon. One was destroyed by fire at El Arish in Egypt in 1942. 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 S200's built in 1942 served on the Trans-Iranian Railway, where they became Iranian class 42.

After the Allied invasion of Italy 31 S200's 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.

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

References

• 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. 

External links

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