USRA Heavy Pacific Type and origin Power type Steam Builder Total produced
Specifications Configuration: • Whyte 4-6-2 • UIC 2′C1′ h2 Gauge 4 ft 8+ 1 ⁄2 in (1,435 mm )Driver dia.79 in (2,007 mm) Wheelbase Coupled: 14 ft 0 in (4.27 m)Locomotive: 36 ft 2 in (11.02 m)Loco & tender: 70 ft 8+ 1 ⁄2 in (21.55 m)Axle load 60,000 lb (27,000 kg) Adhesive weight 180,000 lb (82,000 kg) Loco weight 300,000 lb (140,000 kg) Tender weight 144,000 lb (65,000 kg) Total weight 444,000 lb (201,000 kg) Fuel capacity Coal Water cap. 8,000 US gal (30,000 l; 6,700 imp gal) Tender cap. 32,000 lb (15,000 kg) Firebox: • Firegrate area 70.8 sq ft (6.58 m2 ) Boiler pressure 200 psi (1.38 MPa) Heating surface 3,808 sq ft (353.8 m2 ) • Tubes 2,407 sq ft (223.6 m2 ) • Flues 1,090 sq ft (101 m2 ) • Firebox 284 sq ft (26.4 m2 ) Superheater: • Heating area 882 sq ft (81.9 m2 ) Cylinders Two, outside Cylinder size 27 in × 28 in (686 mm × 711 mm) Valve gear Baker Valve type 14-inch (356 mm) piston valves
The USRA Heavy Pacific 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 heavy passenger locomotive of the USRA types, and was 4-6-2 wheel arrangement in the Whyte notation , or 2′C1′ in UIC classification .
Roster fleet [ ]
Original locomotives [ ]
A total of 20 locomotives were built under USRA control, with the production split between the Baldwin Locomotive Works and the American Locomotive Company 's Richmond plant; these were sent to the following railroads:
Table of original USRA allocation[1]
Railroad
Quantity
Class
Road numbers
Built
Notes
Retired
Erie Railroad (ERIE)
20
K-5
2915–2934
1919
Ten K-5-As were also built as copies (Nos. 2935-2944) in 1923 and a K-5-B (No. 2960) in 1926 by Baldwin.[2]
1950-1952
Locomotive copies [ ]
Other post-USRA derivatives include the Baltimore and Ohio P-7 and the Southern Railway Ps-4 classes, the former having larger 80 inch drivers, higher tractive effort, and increased boiler pressure, and the latter with smaller 73 inch drivers, larger cabs, feedwater heaters, and later batches given larger tenders.[3]
Three locomotive copies were preserved, such as Atlanta and West Point No. 290 built by Lima in 1926, which ran excursions from 1989 to 1992 and is now under cosmetic restoration at the Southeastern Railway Museum in Duluth, Georgia , the B&O P7 5300 at the B&O Railroad Museum in Baltimore , and Southern Railway Ps-4 No. 1401 in the Smithsonian Institution in Washington, D.C.
References [ ]
Drury, George (2015). Guide to North American Steam Locomotives, Revised Edition (2nd ed.). Kalmbach Publishing . ISBN 978-1-62700-259-2 .
Huddleston, Eugene L. (2002). Uncle Sam's Locomotives: The USRA and the Nation's Railroads . Bloomington, Indiana: Indiana University Press. ISBN 0-253-34086-1 .
Ranks, Harold; Lowe, Shelby (1966). Southern Steam Power (1st ed.). Barnhart Press. ASIN B0007EMUYS .
Westcott, Linn H. (1960). Model Railroader Cyclopedia, Volume 1: Steam Locomotives . Milwaukee, Wisconsin: Kalmbach Publishing Co. ISBN 0-89024-001-9 .
Switchers Light Heavy Articulated