The Locomotive of Choice

Written by: Gary Dolzall

More than 450 GP40-2s served CSX and now the landmark EMD diesel is available for Train Sim World!

Electro-Motive’s 3,000-horsepower GP40-2 was one of many success stories in EMD’s long lineage of famed “Geep” diesel road-switchers, and now the GP40-2, in classic CSX “YN2” livery, is available for Train Sim World and CSX Heavy Haul duty!

In February 1973, the Chessie System was formed, cementing a relationship between eastern railroad heavyweight Chesapeake & Ohio, its historic sibling Baltimore & Ohio, and the 1,100-mile Western Maryland. Among the first orders of business for the Chessie System was motive power renewal, as all three roads owned expansive fleets of first-generation motive power that was ready for replacement. Together, C&O, B&O, and WM owned 226 of EMD’s versatile GP40s, and with that locomotive being upgraded to “Dash 2” status with the GP40-2 of 1972, it was hardly a surprise that Chessie System would select the GP40-2 for additional purchases. And indeed, Chessie System did so with vigor, making the new Geep a locomotive of choice. Between 1973 and 1980, Chessie acquiring a fleet of 348 GP40-2s, all dressed in the system’s vivid and very memorable yellow, blue, and vermillion ‘Chessie the Cat” livery.

Chessie System, along with Seaboard System, was, of course, the foundation stone of today’s giant CSX (formed in 1986), and Seaboard System brought to CSX another 51 GP40-2s from predecessors including Seaboard Coast Line and Louisville & Nashville. But CSX’s GP40-2 roster was destined to grow even further, in 1991 when CSX acquired the Richmond, Fredericksburg & Potomac and its seven GP40-2s, and in 1999, when CSX’s acquisition of a portion of Conrail included an additional 53 locomotives. All told, more than 450 GP40-2s would come to call CSX home.

On CSX, the versatile GP40-2 handled virtually any duty it was given, from top-priority intermodals to unit trains and mixed manifests, and, particularly later in life, for local and even switching duties. In March 1990 CSX rolled out a stylish new scheme the railroad coined its “Bright Future” livery (and which railfans now often refer to as the “YN2” livery) and hundreds of the GP40-2s received the attractive livery (which some wear to this day). Indeed, CSX continues to employ an expansive fleet of veteran GP40-2s in road, local, and switching duties across its 21,000-mile system. CSX has, in fact, extended the already remarkable tenures of many of its units through a “GP40-3” upgrade and rebuilding program.

Now, the successful and venerable Electro-Motive GP40-2 – in CSX “Bight Future” (“YN2”) livery – comes to Train Sim World and CSX Heavy Haul, ready for service on famed Sand Patch. Created in exacting detail and with realistic operating characteristics and fidelity, the Train Sim World Electro-Motive GP40-2 joins the CSX SD40-2, GP38-2, and GE AC4400CW as authentic motive power to move tonnage up and over the Sand Patch Grade route. Also included in the GP40-2 DLC are new contemporary freight cars ideal for manifest service on Sand Patch Grade – a 73-foot center-beam flatcar and a CSX 42-foot steel coil car. And the GP40-2 is fully integrated into CSX Heavy Haul’s “Services” mode.

Now’s the time to climb aboard and take the throttle of the magnificent CSX Electro-Motive GP40-2 diesel road-switcher on Sand Patch Grade! – Gary Dolzall

Now available for Train Sim World and CSX Heavy Haul is the successful and venerable Electro-Motive GP40-2 in classic CSX “Bright Future (“YN2”) livery. Electro-Motive produced 1,143 GP40-2s, more than 450 of which eventually served CSX. Screenshots by Gary Dolzall.

Famed Sand Patch Grade is snow covered as CSX GP40-2 6132 leads an EMD SD40-2 climbing the west slope of the Alleghenies near Garrett, Pennsylvania (above). Further west, at Rockwood amid a summer dusk downpour (below), no doubt the engineer of the two EMDs on the head of a westbound freight is busy with the dynamic brakes.

CSX’s truss bridge over Willis Creek at Hyndman, Pennsylvania frames a pair of GP40-2s as the duo makes the climb of Sand Patch’s east slope (above), then a short time later, near Brackens, the “YN2” liveried Geeps encounter a train of CSX coal gons (below).

Along the bucolic Salisbury branch on an autumn evening, CSX GP40-2 6170 is leading a string of coal gons toward Shaw Tipple for loading (above), while on a pleasant summer afternoon another pair of veteran CSX GP40-2s are crossing the branch’s bridge over the Casselman River at Meyersdale, Pennsylvania (below).

On Train Sim World’s CSX Heavy Haul Sand Patch Grade route, the task of battling the Alleghenies and heavy tonnage is challenging and unrelenting. With eastbound auto racks in tow, GP40 6112 rolls below the massive ex-Western Maryland Salisbury Viaduct (above), then later, on the east slope of the CSX Keystone Subdivision, the train emerges from Falls Creek Tunnel and crosses Willis Creek near Fairhope, Pennsylvania (below).

The 3,000-horsepower, four-axle (B-B) GP40-2 was constructed by Electro-Motive from 1972 to 1986 and was equipped with EMD’s long-standard “spartan cab” design and traditional second-generation engineer’s control stand.

Accompanying the CSX EMD GP40-2 in the new DLC pack now available for Train Sim World and CSX Heavy Haul are two new and authentic freight cars ideal for service on Sand Patch Grade, a 42-foot CSX steel coil car and 73-foot center-beam flatcar.

Now you can climb into the cab and take the throttle of the versatile and successful CSX GP40-2 and experience the drama of Sand Patch Grade in Train Sim World and CSX Heavy Haul!

We’re always happy to receive your comments below but please ensure they are related to the subject of the article, we’ll remove any that appear to be unrelated.

Gary Dolzall


  • I have a couple of questions about the game before I purchases it. I work for the railroad. I engineer CSX C40-8W 7778. During the game play is it actual like CSX?
    1) When I see a signal I have to call it in on the radio. EXP. Q124 East bound track signal all clear.
    2) Does the game have defect detectors? (It tells you how many axel’s, length of train, and speed)
    3) Can i use Rail driver controller

    On the railroad its constant communication. Sorry for the questions. It looks like a great game.

    • To answer your questions:

      1. There are no outbound radio transmissions in Train Sim World but there’s no reason why you couldn’t pretend.
      2. Defect detectors are not included in Train Sim World right now but are something we’re keen to implement in the future.
      3. Train Sim World does not work with RailDriver, though it’s something we’re keen to implement in the future.

  • When will the fix for the GP40 DLC come out?

    • I don’t have any details on this Daniel 🙂

  • Hi guys,

    any chance to get an editor so it would be possible to add weathering to engines and cars and have some personalised ones ?
    Any chance also to get SD70mac ?
    Thanks and keep the good work.

    • We’re working on it exether_mega but I have no details on when this will be available. Thanks also for the suggestion, I’ll add your name to the list of supporters for the SD70mac.

      • Thank you very much for your reply ! 🙂

  • I bought this TSW DLC from the DTG purchase site at 2:00 PM today. When the transaction completed (via PayPal), a message stated that I would receive an email message. It is now nearly 7:30 PM. I have received a payment receipt from PayPal, but NOTHING from DTG. Actually, PayPal identifies the merchant as Scalefast Inc — who or whatever that may be.
    I have always purchased TS DLC through Steam and the product I purchased has always begun downloading almost immediately. Let me strongly advise everyone else to buy this product through Steam and avoid the DTG purchase site completely.

    • Sorry to hear you’ve had a problem using the store Tom. Emails are sent automatically, have you checked your spam folder? Also, even if you don’t receive the email, you can always access your downloads in the store by clicking on Account (top-right corner), Your Orders and then look on the Download page which will have your code shown. Please let me know if you get stuck or you can get help by contacting our Retail Team at

      • Thanks for this information, Steve; how was I supposed to know all of this? And I have to add, this complex process amounts to an excellent example of “Byzantine”.
        Nevertheless, you omitted the last and very important step: once the purchaser has “read” and “agreed to” the absurdly long legalize, it’s still necessary to go to the TSW page in Steam, uncheck the box related to the new DLC and then recheck it to actually begin the download. I knew this because I’ve experienced the same glitch with other TS and TSW products.
        The new add-on is downloading now and I’m looking forward to driving the new engine.

        • Fundamentally, all the information you need to negotiate the Dovetail Store is clearly available in the store at Tom. On the other part relating to the download, that is all part of the Steam Client and not something we control, if you have concerns with regard to how that works, you’ll need to raise that with Valve Customer Support at

  • Where can I download the manual of this locomotive?
    It would be interesting if Dovetail included a manual with each of its DLC for TSW, as it does with Train Simulator.

    • You can find the operating instructions here juan manuel 85, just follow the instructions for the SD40-2 as it is entirely the same.

  • Hello.
    Please, Could you publish the manual in Steam store like the Train Simulator DLCs?

    • You can find the operating instructions here Bermudez, just follow the instructions for the SD40-2 as it is entirely the same.

  • Link to the manual?

    • You can find the operating instructions here RenfeBilbao7277, just follow the instructions for the SD40-2 as it is entirely the same.

  • Will there ever be a macOS version of Train Simulator in general? Thanks!

    BTW: Any chance of a GWR Class 800 for TSW GWE?
    Many thanks!

    • We currently have no plans to bring Train Simulator to OSX 52_Western. Thanks for the suggestion, will certainly make sure that goes on the list to consider 🙂

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