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On one side was the development of a steam turbine locomotive, eventually designated as Class V1 resembling the later Chesepeake & Ohio M-1, albeit with a 4-8-0+4-8-0 wheel arrangement. This locomotive spent years in development, but never materialized, though did culminate in the construction of the S2 of 1944.
The Milwaukee F7s are accepted as the fastest steam locomotives by a different measure—scheduled speed between stations. In 1939, shortly after they were introduced into passenger service, the Twin Cities Hiawatha schedule was modified such that the engines would need to run the 78.3 mi (126.0 km) between Portage and Sparta, Wisconsin in 58 ...
GE steam turbine locomotives; Gov. Stanford; Grand Trunk Western 5629; Great Northern 2507; Great Northern 2584; Great Northern F-8; Great Northern H-5; Great Northern M-1; Great Northern O-1; Great Northern P-1; Great Northern P-2; Great Northern Q-1; Great Northern S-1; Great Northern S-2; Great Smoky Mountains Railroad 1702
Pennsylvania Railroad 5550 (PRR 5550) is a mainline duplex drive steam locomotive under construction in the United States. With an estimated completion by 2030, the locomotive will become the 53rd example of the Pennsylvania Railroad's T1 steam locomotive class and the only operational locomotive of its type, [7] as well as the largest steam locomotive built in the United States since 1952.
All of them originally used saturated steam, but some were later equipped with superheaters while all the others were provided with feedwater heaters. These locomotives had a maximum speed limit of 52.8 miles per hour (85 kilometres per hour) and were designed to be able to haul 1,177 long tons at 22.4 miles per hour (36 kilometres per hour). A ...
The Chesapeake and Ohio class H-8 was a class of 60 simple articulated 2-6-6-6 steam locomotives built by the Lima Locomotive Works in Lima, Ohio between 1941 and 1948, operating until the mid 1950s. The locomotives were among the most powerful steam locomotives ever built and hauled fast, heavy freight trains for the railroad.
The driving wheels were 77 in (1.956 m), larger than the PRR's existing dual-service locomotives. The Q1's streamlined design consisted of a blunt nosecone in front of the smokebox, extended side skirts covering the locomotive's pipework, and a streamlined shape on the tender similar to the PRR's S1, S2, and T1 passenger locomotives. The cab ...
Its high-speed capability was such that many have claimed that the S1 exceeded on multiple occasions the 126 mph (203 km/h) record steam locomotive speed set in 1938 by the British LNER locomotive 4468 Mallard. The engine was claimed to have exceeded 152 mph (245 km/h) on the Fort Wayne-Chicago run, as it was reported that the PRR received a ...