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The Pennsylvania Railroad K4 was a class of 425 4-6-2 steam locomotives built between 1914 and 1928 for the PRR, where they served as the primary main line passenger steam locomotives on the entire PRR system until late 1957. Attempts were made to replace the K4s, including the K5 and the T1 duplex locomotive.
I was reading in a book called history of Union Pacific steam from the UPHS and ran into a proposed 4-10-4 Lincoln type locomotive. Not much information was given other than the FEF was chosen instead. Does anyone know if any other road tested this theory of power?
Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 6-8-6 represents the arrangement of six unpowered leading wheels, eight powered and coupled driving wheels, and six unpowered trailing wheels. Other equivalent classifications are: Swiss classification: 4/10.
The Pennsylvania Railroad designed, built, and operated a fleet of 425 4-6-2 'Pacific' type steam locomotives classified in the "K" series. Some locomotives were modified with an added superheater, after which they were given a lowercase "s" after their series number (such as the K4s).
Union Pacific rostered ten 4-10-2 locomotives that were three-cylindered machines developing 77,917 lbs of tractive effort on 63" drivers.
The Chesapeake and Ohio Railway's K-4 class were a group of ninety 2-8-4 steam locomotives purchased during and shortly after World War II. [1] Unlike many other railroads in the United States, the C&O chose to nickname this class "Kanawha", after the river in West Virginia, rather than "Berkshire", after the region in New England.
The Class K-4 locomotive was a splendid machine and the designed incorporated many of the outstanding features of the earlier Class E-6 "Atlantic" (4-4-2) passenger locomotive plus technology developed for the earlier "Pacifics" and the the ALCO Class K-29.
