Union Pacific FEF-3 Loco Add-On

  • FEF33
  • FEF31
  • FEF34
  • FEF35
  • FEF32

    Buy Union Pacific FEF-3

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    Clickable image taking you to the Steam store page for the Union Pacific FEF-3 Loco Add-On DLC for Train Simulator

    The final steam locomotive built for Union Pacific, the FEF-3, comes to Train Simulator from Smokebox with an extensive array of detailing and features.

    The FEF was a class of three steam locomotives built by the American Locomotive Company (Alco) and operated by Union Pacific Railroad. ‘FEF’ was an acronym of the locomotive’s wheel arrangement – 4-8-4 – although they were also called ‘800s’, after the running numbers they carried.

    The first 20 FEF locomotives - named FEF-1 - were delivered by Alco in 1937 with a second batch of 15 locomotives – FEF-2 - delivered two years later. The remaining 10 locomotives in the Class – FEF-3 - arrived in the early 1940s, and except from the use of some substitute materials, were almost identical to the FEF-2 locomotives.

    The FEF-3 were the last steam locomotives delivered for Union Pacific and survived well beyond World War II, with many of the locomotives being converted to oil burning due to the short supply of coal following the War.

    Locomotive 844, the last of the FEF-3 Class, holds the honour of being the longest continuously operating 4-8-4 locomotive in the World, and the only one never to be retired by a Class I Railroad, continuing on regular services to this day. Three other locomotives in the Class have survived, two of which are on permanent display in the USA.

    The FEF-3 for Train Simulator, developed by Smokebox, is available in two all-black Union Pacific liveries, one of which includes white-walled driving tyres, chrome finish on some parts, silver grey striping along the edge of runboards, and gold painted cab front windows frames. The FEF-3 is also fitted with diesel multiple unit (MU) controls, meaning it can run in tandem with a diesel locomotive, and features functioning in-cab signalling equipment.

    You can drive the locomotive in both simple and advanced modes, and it also includes a wealth of detailing and animated features, such as animated valve gear and running gear, animated brake rigging and brake pistons, opening cab doors, side windows, ventilator doors, roof hatch, front storm windows, and side windshields, animated water level in tender, and realistic wheelslip/wheelskid.


    • FEF-3 in Union Pacific liveries
    • Simple and advanced controls
    • Diesel multiple unit (MU) controls
    • Functioning in-cab signalling equipment
    • Animated valve gear and running gear
    • Animated brake rigging and brake pistons
    • Opening cab doors, side windows, ventilator doors, roof hatch, front storm windows, and side windshields
    • Animated water level in tender
    • Realistic wheelslip/wheelskid
    • Quick Drive compatible
    • 3 scenarios for the Sherman Hill route, also available on Steam.


    Union Pacific FEF-3 Manual

    Clickable image to download/view the Union Pacific FEF-3 Manual
    Clickable image taking you to the Train Simulator DLC directory at DPSimulation

    Union Pacific FEF-3 - History

    Do you have an interest in the history of the Union Pacific FEF-3 locomotive? Our friends over at American Rails have an excellent site documenting the history of this and many other North American locomotives. Click here to take a look.

    Image by Drew Jacksich and used under Creative Commons license.

    Image showing Union Pacific 844 at Painted Rocks, Nevada, on a run from Elko to Sparks, Nevada, April 15, 2009