Category:Union Pacific Railroad locomotives - Wikipedia
Locomotives of the Union Pacific Railroad. The following 39 pages are in this category, out of 39 total. This list may not reflect recent changes.
Union Pacific Railroad - Wikipedia
The Union Pacific Railroad (reporting marks UP, UPP, UPY) is a Class I freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans.
UP: Union Pacific's Historic Steam Program
During World War II Union Pacific operated some of the most modern and powerful steam locomotives ever built. Among them were the famous "Big Boys," the largest steam locomotives in the world. Working with them were the "800-class" high-speed passenger locomotives, as well as hundreds of older class steam engines.
Union Pacific locomotive roster - Trains
Oct 3, 2022 · Trains magazine offers railroad news, railroad industry insight, commentary on today's freight railroads, passenger service (Amtrak), locomotive technology, railroad preservation and history, railfan opportunities (tourist railroads, fan trips), and great railroad photography.
Union Pacific Diesel Roster (1934-2009) - UtahRails.net
Aug 7, 2024 · UPY Units -- An index page to all of Union Pacific's recent, beginning in 2000, UPY (Union Pacific Yard) units, including the UPY 900 series yard slugs and road slugs. UPY Genset Units -- Roster listings for the 83 former MP and SP B23 …
Union Pacific
Union Pacific’s Locomotive No. 1943, The Spirit, was the company's 16th commemorative locomotive. The Spirit honors the United States’ armed forces and the men and women filling …
Union Pacific Big Boy - Wikipedia
The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company (ALCO) between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962.
UP: Diesel-Electric Locomotives - Union Pacific
Union Pacific has retained only one of its 47 Centennial diesel-electric locomotives, No. 6936. The Centennials were the largest diesel-electric locomotives ever built. Actually comprising two engines on one frame, they delivered 6,600 horsepower.
Union Pacific FEF series - Wikipedia
The Union Pacific FEF series consists of 45 4-8-4 "Northern" steam locomotives built by the American Locomotive Company (ALCO) between 1937 and 1944 and operated by the Union Pacific Railroad until 1959. Like other Union Pacific steam classes, the acronym comes from the first letter of the spelling of its wheel arrangement: Four Eight Four.
Union Pacific Diesel Story, 1934-1982 - UtahRails.net
Nov 26, 2024 · When Union Pacific renumbered its entire diesel locomotive fleet in early 1948, some officials thought that the variety of locomotives used on passenger trains--some jointly operated and some exclusively UP--would make it difficult to keep accurate records for the purposes of equalization.
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