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  2. Union Pacific Big Boy - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_Big_Boy

    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. The 25 Big Boy locomotives were built to haul freight over the Wasatch Range between Ogden, Utah, and Green ...

  3. Union Pacific 844 - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_844

    Union Pacific 844 is a class "FEF-3" 4-8-4 "Northern" type steam locomotive owned and operated by the Union Pacific Railroad for its heritage fleet. Built in December 1944 by the American Locomotive Company (ALCO) of Schenectady, New York, No. 844 is one of four surviving FEF series locomotives and the only one in operation.

  4. Union Pacific FEF series - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_FEF_series

    Factor of adh. 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 ...

  5. List of steam fairs - Wikipedia

    en.wikipedia.org/wiki/List_of_steam_fairs

    Antique Power and Steam Show - Large annual show taking place in the Lake County Fairgrounds in Indiana. Badger Steam and Gas Show - Annual show hosted by Badger Steam and Gas Engine Club near Baraboo, WI. Buckley Old Engine Show - Annual show in Buckley, Michigan [33] K&O Steam and Gas Engine Show, Windfield Kansas.

  6. Union Pacific 4014 - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_4014

    Union Pacific 4014 is a steam locomotive owned and operated by the Union Pacific (UP) as part of its heritage fleet. It is a four-cylinder simple articulated 4-8-8-4 "Big Boy" type built in 1941 by the American Locomotive Company (ALCO) at its Schenectady Locomotive Works. It was assigned to haul heavy freight trains in the Wasatch mountain ...

  7. 4-8-4 - Wikipedia

    en.wikipedia.org/wiki/4-8-4

    Union Pacific 844, the only steam locomotive never retired by a North American Class I railroad. The 4-8-4 wheel arrangement was a progression from the 4-8-2 Mountain type and, like the 2-8-4 Berkshire and 4-6-4 Hudson types, an example of the "Super Power" concept in steam locomotive design that made use of the larger firebox that could be supported by a four-wheel trailing truck, which ...

  8. Union Pacific 3985 - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_3985

    Factor of adh. Union Pacific 3985 is a four-cylinder simple articulated 4-6-6-4 "Challenger"-type steam locomotive built in July 1943 by the American Locomotive Company (ALCO) of Schenectady, New York, for the Union Pacific Railroad. No. 3985 is one of only two Challengers still in existence and the only one to have operated in excursion service.

  9. Union Pacific 9000 Class - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_9000_Class

    The Union Pacific 9000 class was the only class of steam locomotives with a 4-12-2 wheel arrangement ever to be built. Under the Whyte notation for the classification of steam locomotives, the locomotives had four leading wheels, twelve coupled driving wheels, and two trailing wheels. As the Union Pacific was the only operator of this wheel ...