USRA Heavy Pacific

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
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.	1950-1952
===Locomotive copies===
Other post-USRA derivatives include the Baltimore and Ohio Class P-7 and the Southern Railway Class Ps-4, the former having larger 80-inch diameter driving wheels, higher tractive effort, and increased boiler pressure, and the latter with smaller 73-inch diameter driving wheels, larger cabs, feedwater heaters, and later batches given larger tenders.
Table of USRA copies
Railroad 	Quantity	Class	Road numbers 	Built 	Notes 	Retired 	Photograph
Baltimore & Ohio (B&O)	20 	P-7 	5300-5319 	1927 	Built by Baldwin. 	1958 	
Erie Railroad (ERIE) 	10 	K-5a 	2935-2944 	 	 	 	
Southern Railway (SOU)	64 	Ps-4 	1366-1409, 6471-6482, 6675-6691	1923-1928	
*Thirty-six (Nos. 1366-1392, 6471-6475, and 6684-6687) built between 1923 and 1924 at ALCO's Schenectady Works.
*Twenty-two (Nos. 1393-1404, 6476-6482, and 6688-6691) built in 1926 at ALCO's Richmond Works.
*The last five (Nos. 1405-1409) built in 1928 by Baldwin.	1949-1953	
West Point Route (WPR)	2 	P-74 	190 & 290 	1926 	Nos. 190 and 290 were both built for the Western Railway of Alabama (WRA) and the Atlanta and West Point Railroad (A&WP), respectively.	1954 	
Total 	88 	 	 	 	 	 	
Three copies of the USRA Heavy Pacifics were preserved, those three survivors are Atlanta and West Point No. 290 which was built by the Lima Locomotive Works in 1926, 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 Class Ps-4 No. 1401 at the National Museum of American History in Washington, D.C.
Category:Locomotive Designs that were used by Multiple Railways
Category:USRA locomotives
Category:4-6-2 locomotives
Category:4-6-2 steam locomotives
Category:Locomotives featured in media
Category:USRA Heavy Pacific