USRA Heavy Mountain

Specifications
Specifications
Configuration:;
• Whyte	4-8-2
• UIC	2′D1′ h2
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Wheelbase	Coupled: 18 ft 3 in (5.56 m); Locomotive: 40 ft 0 in (12.19 m); Loco & tender: 75 ft 8+1⁄2 in (23.08 m);
Axle load	60,000 lb (27,000 kg)
Adhesive weight	240,000 lb (110,000 kg)
Loco weight	350,000 lb (160,000 kg)
Tender weight	172,000 lb (78,000 kg)
Total weight	522,000 lb (237,000 kg)
Fuel type	Coal
Fuel capacity	32,000 lb (15,000 kg)
Water cap.	10,000 US gal (38,000 L; 8,300 imp gal)
Firebox:; • Firegrate area	76.3 sq ft (7.09 m2)
Boiler pressure	200 psi (1.38 MPa)
Heating surface	4,666 sq ft (433.5 m2)
• Tubes	2,790 sq ft (259 m2)
• Flues	1,323 sq ft (122.9 m2)
• Firebox	346 sq ft (32.1 m2)
Superheater:;
• Heating area	10,780 sq ft (1,001 m2)
Cylinders	Two
Cylinder size	28 in × 30 in (711 mm × 762 mm)
Valve gear	Walschaerts
Valve type	14-inch (360 mm) piston valves

Type and origin
Type and origin
Power type	Steam
Builder	American Locomotive Company (13+25); Baldwin Locomotive Works (2+12);
Build date	1918-1926
Total produced	15 (plus 37 copies)

USRA Heavy Mountain
USRA Heavy Mountain
Power type
Type and origin
Power type	Steam
Builder	American Locomotive Company (13+25); Baldwin Locomotive Works (2+12);
Build date	1918-1926
Total produced	15 (plus 37 copies)
Configuration:;
Specifications
Configuration:;
• Whyte	4-8-2
• UIC	2′D1′ h2
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Wheelbase	Coupled: 18 ft 3 in (5.56 m); Locomotive: 40 ft 0 in (12.19 m); Loco & tender: 75 ft 8+1⁄2 in (23.08 m);
Axle load	60,000 lb (27,000 kg)
Adhesive weight	240,000 lb (110,000 kg)
Loco weight	350,000 lb (160,000 kg)
Tender weight	172,000 lb (78,000 kg)
Total weight	522,000 lb (237,000 kg)
Fuel type	Coal
Fuel capacity	32,000 lb (15,000 kg)
Water cap.	10,000 US gal (38,000 L; 8,300 imp gal)
Firebox:; • Firegrate area	76.3 sq ft (7.09 m2)
Boiler pressure	200 psi (1.38 MPa)
Heating surface	4,666 sq ft (433.5 m2)
• Tubes	2,790 sq ft (259 m2)
• Flues	1,323 sq ft (122.9 m2)
• Firebox	346 sq ft (32.1 m2)
Superheater:;
• Heating area	10,780 sq ft (1,001 m2)
Cylinders	Two
Cylinder size	28 in × 30 in (711 mm × 762 mm)
Valve gear	Walschaerts
Valve type	14-inch (360 mm) piston valves
Tractive effort
Performance figures
Tractive effort	58,200 lbf (258.89 kN)
Factor of adh.	4.1
Preserved
Career
Preserved	0
Scrapped	1940-1959
Disposition	All scrapped

The USRA Heavy Mountain was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. This was the standard light freight locomotive of the USRA types, and was of 4-8-2 wheel arrangement in the Whyte notation, or 2′D1′ in UIC classification.

A total of 15 locomotives were built under the auspices of the USRA.

Table of original USRA allocation
Railroad	Quantity	Class	Road numbers	Notes
Chesapeake and Ohio Railway	5	J-2	543-547	Built 1918 by Baldwin. Renumbered from 133-137. Scrapped 1940-1947.
Norfolk and Western Railway	10	K2	116–125	Built 1919 by ALCO. Scrapped 1951-1952.
Total	15

Table of copies acquired
Railroad	Quantity	Class	Road numbers	Notes
Chesapeake and Ohio Railway	2	J-2a	548–549	Built 1923 by ALCO. Renumbered from 138-139. Scrapped in 1948.
Florida East Coast Railway	23	801	801–823	Built 1926 by ALCO Schenectady. Scrapped 1950-1952.
Norfolk and Western Railway	12	K2a	126–137	Built 1923 by Baldwin. Scrapped 1947-1959.
Total	37

Neither the originals built by the USRA or any of the subsequent copies were preserved, being scrapped between 1940 and 1959.

References

Drury, George H. (1993), Guide to North American Steam Locomotives, Waukesha, Wisconsin: Kalmbach Publishing Company, ISBN 0-89024-206-2, LCCN 93041472
Edson, William D.; Corley, Raymond F. (Autumn 1982). "Locomotives of the Grand Trunk Railway". Railroad History. Boston, Mass.: Railway and Locomotive Historical Society. 147 (147): 42–183. JSTOR 43520915.
Huddleston, Eugene L. (2002). Uncle Sam's Locomotives: The USRA and the Nation's Railroads. Bloomington, Ind.: Indiana University Press. ISBN 0-253-34086-1.
Westcott, Linn H. (1960). Model Railroader Cyclopedia, Volume 1: Steam Locomotives. Milwaukee, Wis.: Kalmbach Publishing Co. ISBN 0-89024-001-9.
"Standard Heavy 4-8-2 and Light 2-10-2 Locomotives". Railway Age. 65 (24): 1067–1073. December 13, 1918 – via Archive.org.
"Tentative Specifications for Standard Locomotives". Railway Age. 64 (16): 1039–1041. April 19, 1918 – via Archive.org.

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