| USATC S200[1] | |
|---|---|
| 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.[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 S200's built in 1942 served on the Trans-Iranian Railway, where they became Iranian class 42.[4]
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.