PRR Locomotive Classification
Locomotive classification on the Pennsylvania Railroad took several forms. Early on, steam locomotives were given single-letter classes. As the 26 letters were quickly assigned, that scheme was abandoned for a more complex system. This was used for all of the PRR's steam locomotives, and — with the exception of the final type bought (the E44) — all electric locomotives also used this scheme.
PRR E44 Electric Locomotive No. 4432.
Classic Streamliners - TRAINCYCLOPEDIA
The Pennsylvania Railroad's mighty T1 was in a class of its own.
PRR 5711 at Chicago Union Station for National Train Day, 2011.
By vxla from Chicago, US [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
Pennsylvania Railroad No. 7002 at the Railroad Museum of Pennsylvania.
By Photo by and (c)2016 Derek Ramsey (Ram-Man) - Self-photographed, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=47591930
The Pennsylvania Railroad was slow to dieselize. By the end of WW2 they only had 18 units. However over the next 22 years they had acquired a total of 3,005 units. They bought from all the manufacturers: Alco 516 units, Baldwin 643 units, EMD 1,479 units, Fairbanks-Morse 200 units, General Electric 145 units, and Lima 22 units. This diversity was a nightmare for the maintenance department as there was very little compatibility among the different builders.
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Text: wikipedia.org. Images: Public Domain; http://www.commons.wikimedia.org (unless otherwise specified) and 17 U.S. Code § 107 fair use. References: Lewis, Robert G. The Handbook of American Railroads. New York: Simmons-Boardman Publishing Corporation, 1951, 2nd Edition 1956. Site Map Contact webmaster HERE.