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The EMD DDA40X is a 6,600 hp (4,943 kW) D-D locomotive, built by EMD from 1969 to 1971 exclusively for the Union Pacific Railroad. [1] It is the most powerful diesel–electric locomotive model ever built on a single frame, having two 16-645E3A diesel prime movers. [2]
Most powerful (continuous) single-frame locomotive in Europe. Union Pacific 9000 class: Union Pacific: 9000-9087 American Locomotive Company: 1926-1930 Steam 4-12-2: 355 tonnes (391 short tons) 97,664 pounds-force (434 kN) 4,750 horsepower (3,542 kW) — Union Pacific Coal GTELs: Union Pacific: 80 (later 8080) Union Pacific Omaha Shops 1961
Union Pacific was able to maintain daily service on the Chicago-Denver run for seventeen years by dedicating three locomotive sets to that service and re-purposing power units from M-10001 and M-10004 (three total) to provide additional power and keep at least two of the locomotive sets in running condition at any given time.
Union Pacific No. 119; Union Pacific 618; Union Pacific 737; Union Pacific 844; Union Pacific 1243; Union Pacific 1982; Union Pacific heritage fleet; Oregon Railroad and Navigation 197; Union Pacific 3985; Union Pacific Big Boy; Union Pacific 4012; Union Pacific 4014; Union Pacific 4023; Union Pacific 4141; Union Pacific 4466; Union Pacific ...
American Locomotive Company (ALCO) FEF-3 4-8-4 In storage as source of spare parts Union Pacific Railroad, Cheyenne, Wyoming: 844: December 1944 American Locomotive Company (ALCO) FEF-3 4-8-4 Operational Union Pacific Railroad, Cheyenne, Wyoming: 1242: T-57 4-6-0 Static display 1243: October 1890 T-57 4-6-0 Static display 2005: April 1911
Locomotives of different types (Whyte and UIC wheel notation) In rail transport , a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive . [ 1 ]
Union Pacific 6936 is an EMD DDA40X locomotive built for the Union Pacific Railroad . Previously a part of UP's heritage fleet , 6936 was for several decades the last remaining operational "Centennial" type, and thus the largest operational diesel-electric locomotive in the world.
The ALCO Century 855 was a model of 5,500 hp (4,101 kW) diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific.The locomotive was notable for being ALCO's most powerful diesel-electric locomotive and, at the time, the most powerful diesel locomotive ever built, [1] being surpassed by the 6,600-horsepower (4,922-kilowatt) EMD DDA40X in April 1969.