USATC S118 Class information

Specifications
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
Gauge	3 ft (914 mm); 1,000 mm (3 ft 3+3⁄8 in) metre gauge; 3 ft 6 in (1,067 mm)
Leading dia.	26 in (660 mm)
Driver dia.	48 in (1,219 mm)
Trailing dia.	30 in (762 mm)
Length	59 ft 5+1⁄2 in (18,123 mm)
Adhesive weight	80,000 lb (36,300 kilograms; 36.3 metric tons)
Loco weight	119,000 lb (53,980 kilograms; 53.98 metric tons)
Tender weight	96,700 lb (43,860 kilograms; 43.86 metric tons)
Fuel type	Coal or fuel oil
Fuel capacity	18,000 lb (8,160 kilograms; 8.16 metric tons)
Water cap.	5,000 US gal (18,927 L; 4,163.4 imp gal)
Firebox:
• Grate area	27.7 sq ft (2.57 m2)
Boiler pressure	185 lbf/in2 (1.28 MPa)
Heating surface:
• Firebox	115 sq ft (10.7 m2)
• Tubes and flues	1,256 sq ft (116.7 m2)
• Total surface	1,371 sq ft (127.4 m2)
Superheater:;
• Heating area	374 sq ft (34.7 m2)
Cylinders	Two, outside
Cylinder size	16 in × 24 in (406 mm × 610 mm)
Valve gear	Indirect Walschaerts

Type and origin
Type and origin
Power type	Steam
Builder	American Locomotive Company (338),; Baldwin Locomotive Works (253+33),; Davenport Locomotive Works (67+6),; H.K. Porter, Inc. (25+5),; Vulcan Iron Works (58+8)
Build date	1942–1945 (for USATC),; 1945–1948 (copies)
Total produced	741 for USATC, 52 copies

USATC S118 class
USATC S118 class
	SPAP Δ108, later SEK 7108, a post-war S118 copy, displayed at Corinth Old Station, April 2007
Power type
Type and origin
Power type	Steam
Builder	American Locomotive Company (338),; Baldwin Locomotive Works (253+33),; Davenport Locomotive Works (67+6),; H.K. Porter, Inc. (25+5),; Vulcan Iron Works (58+8)
Build date	1942–1945 (for USATC),; 1945–1948 (copies)
Total produced	741 for USATC, 52 copies
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-2
• UIC	1′D1′ h2
Gauge	3 ft (914 mm); 1,000 mm (3 ft 3+3⁄8 in) metre gauge; 3 ft 6 in (1,067 mm)
Leading dia.	26 in (660 mm)
Driver dia.	48 in (1,219 mm)
Trailing dia.	30 in (762 mm)
Length	59 ft 5+1⁄2 in (18,123 mm)
Adhesive weight	80,000 lb (36,300 kilograms; 36.3 metric tons)
Loco weight	119,000 lb (53,980 kilograms; 53.98 metric tons)
Tender weight	96,700 lb (43,860 kilograms; 43.86 metric tons)
Fuel type	Coal or fuel oil
Fuel capacity	18,000 lb (8,160 kilograms; 8.16 metric tons)
Water cap.	5,000 US gal (18,927 L; 4,163.4 imp gal)
Firebox:
• Grate area	27.7 sq ft (2.57 m2)
Boiler pressure	185 lbf/in2 (1.28 MPa)
Heating surface:
• Firebox	115 sq ft (10.7 m2)
• Tubes and flues	1,256 sq ft (116.7 m2)
• Total surface	1,371 sq ft (127.4 m2)
Superheater:;
• Heating area	374 sq ft (34.7 m2)
Cylinders	Two, outside
Cylinder size	16 in × 24 in (406 mm × 610 mm)
Valve gear	Indirect Walschaerts
Tractive effort
Performance figures
Tractive effort	20,100 lbf (89.4 kN)
Factor of adh.	3.98
Operators
Career
Operators	USATC
Numbers	3000–3029, 130–249, 257–639, 661–788, 811–890
Locale	North America, South America, North Africa, West Africa, East Africa, Middle East, South and South East Asia, Australia

The United States Army Transportation Corps (USATC) S118 Class is a class of 2-8-2 steam locomotive. Built to either 3 ft (914 mm), 1,000 mm (3 ft 3+3⁄8 in) metre gauge or 3 ft 6 in (1,067 mm) gauge, they were used in at least 24 different countries.

Based on Australia's new C17 class locomotives, their specifications were forwarded to the United States where the United States Army Transportation Corps (USATC) drew up plans for a 2-8-2 with specifications similar to a C17 class. 741 were built in the period late 1942–1945 with a further 52 appearing between 1945 and 1948. They were built by Baldwin (253+33), Alco (338), Porter (25+5), Davenport (67+6) and Vulcan (58+8) in the United States. The first thirty were numbered 3000–3029, with subsequently locomotives numbered 130–249, and 257–889. Locomotives 640–660 and 789–810 were cancelled.

The S118 class were the most widespread of all the locomotives of the Second World War. The first twenty locomotives (3000–3019) were sent to Nigeria. Eleven, (190–200), were converted to 3 ft (914 mm) gauge by putting 3 in (76.2 mm) wide spacers (rings) between the wheels and the truck side frames on same length axles, and delivered to the White Pass and Yukon Route in Alaska. Twenty (216–235) were delivered to Queensland where they formed the Queensland Railways AC16 Class. Others were sent to North Africa, Gold Coast, Iraq, India, and Burma.

After the war, surplus locomotives were sold to Malaya, the Philippines (as Manila Railroad 850 class),^[1] Siam, Cambodia, Cameroun, Tanganyika,^[2] and the United Fruit Company operations in Costa Rica and Honduras.

^ Smith, Jonathan. "Manila Railroad steam locomotives". Iowa State University. Retrieved January 22, 2021.
^ Tourret, R (1976). War Department Locomotives. Abingdon: Tourret Publishing. p. 35. ISBN 0-905878-00-0. {{cite book}}: External link in |publisher= (help)

[1] Smith, Jonathan. "Manila Railroad steam locomotives". Iowa State University. Retrieved January 22, 2021.

[2] Tourret, R (1976). War Department Locomotives. Abingdon: Tourret Publishing. p. 35. ISBN 0-905878-00-0. {{cite book}}: External link in |publisher= (help)

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