Atlas - 48538 - Locomotive, Diesel, EMD GP40 - Milwaukee Road - 2026

Model Information: This model was first introduced by Atlas in 1969. This early version was made for Atlas by Mehano in Yugosolvia. It was later retooled and moved to Chinese production in 1996. It was later revised with a DCC-Ready chassis in 2003. The same mechanism is used for the GP38, GP38-2, GP40 and GP40-2.

The earliest (Mehano) releases only came as GP-40's. The other versions (GP38, GP38-2 and GP40-2) only arrived later after the production was moved to China.

Both of the Chinese mechanisms run fine but the first releases (1996) do not support drop in decoders. Both versions use a dual-flywheel, split frame chassis with a 5-Pole skew-wound motor.

The current model features:

• Golden-white LEDs;
• Separately-applied roof detail;
• Painted safety rails;
• Directional lighting;
• Blackened metal wheels;
• Scale Speed motor;
• Separately-applied coupler cut levers;
• Non-Dynamic, Dynamic, and Extended Range Dynamic Brakes used where appropriate;
• Pilot: Standard or with Snow Plow;
• Low short hood and High short hood versions available.

DCC Information: The Mehano versions do not support DCC at all. Early Chinese versions are DCC-friendly requiring a complicated split-board DCC install. Later versions are DCC-Ready accepting a 1 Amp N Scale Mobile Decoder for Atlas N-Scale GP40-2, U25B, SD35, Trainmaster, B23-7 and others (DN163A0) from Digitrax.

Unfortunately, the only way to tell which kind you have is to remove the shell and check the chassis. If it has two small lightboards, you have an old one in your hand. A single long lightboard indicates a DCC-Ready chassis.

Prototype History: The GP40 is a 4-axle diesel-electric road-switcher locomotive built by General Motors, Electro-Motive Division between November 1965 and December 1971. It has an EMD 645E3 16-cylinder engine generating 3,000 hp (2,240 kW).

The GP40 is 3 feet (0.914 m) longer than its EMD 567D3A-engined predecessor, the GP35, and distinguished visually by its three 48-inch radiator fans at the rear of the long hood, while the GP35 has two large fans and a smaller one in between. It was built on a 55 ft (16.76 m) frame; the GP35 was built on a 52 ft (15.85 m) frame - as was the GP7, 9, 18, and 30. The difference in length can be seen in the GP40's ten handrail stanchions compared to the GP35's nine.

1,187 GP40s were built for 28 U.S. railroads; 16 were built for one Canadian carrier, Canadian National; and 18 were built for two Mexican carriers, Ferrocarril Chihuahua al Pacifico and Ferrocarriles Nacional de Mexico. 60 units were built with high-short-hoods and dual control stands for Norfolk & Western Railway. Two passenger versions, the GP40P and GP40TC, were also built, but on longer frames to accommodate steam generators and HEP equipment.

On January 1, 1972, the GP40 was discontinued and replaced by the GP40-2, which has a modular electrical system and a few minor exterior changes.

From Wikipedia


A Guilford/Pan Am (MEC) train headed by a high-nose GP40 ex-NW followed by two SD40M-2 (rebuilt SD45)

Road Name History: First of all, Milwaukee Road has only ever been a popular nickname. The real name from 1874 was Chicago Milwaukee & St. Paul. For the next 36 years, the CM&StP linked Chicago with Milwaukee, Green Bay, Madison, Wausau, the Twin Cities, Duluth, Kansas City and Omaha with a dense network of branches in Wisconsin, Iowa, southern Minnesota and eastern South Dakota. Essentially, the lines ended at the Missouri River.

With a dearth of friendly western connections, CM&StP decided to build their own line to the Pacific. The original target was the bustling megalopolis of Eureka, California. However, they built toward Seattle instead. In 1909 the line opened. Along the way, they served Miles City, Lewiston, Great Falls, Harlowton and Butte, Montana; Avery, Idaho; and Spokane, Seattle and Tacoma, Washington. In 1912, they began to electrify two long segments, Harlowton, Montana to Avery, Idaho and Othello, Washington to Tacoma.

In 1921, they leased the Chicago Terre Haute & Southeastern and a bit later the Chicago Milwaukee & Gary to reach the coal fields of southern Indiana. Both roads were in trouble and dragged the CM&StP into receivership. In 1928, they emerged with a small name change. It was now the Chicago Milwaukee St. Paul & Pacific. Right after that, the nickname “Milwaukee Road” began to catch on.

The three Class One’s that already served the Pacific Northwest, Northern Pacific, Great Northern (along with their jointly owned minion Spokane Portland & Seattle) and Union Pacific were not pleased with their new neighbor and avoided building interchanges with them unless absolutely necessary. This left Milwaukee to haul whatever traffic they could originate or terminate on their own line or via a hand full of shortlines with which they interchanged. This is why when you see photos of Milwaukee Road trains west of the Dakotas, an exceptionally large majority of cars are lettered for Milwaukee Road.

Milwaukee’s steam fleet is generally quite handsome beginning with the period after WWI. Many locomotives were built in their own shops. The steam era came to an end on the Milwaukee in 1957.

The electrified lines were ruled by boxcabs and Bi-Polars for decades. In the 1950’s, Little Joe’s diverted from the Soviet Union arrived on the Milwaukee (and the South Shore.) By the late 60’s diesels began to regularly invade the electrified lines. Little Joes and diesels were MU’ed. The aging catenary could only handle so many electrics at a time so diesels filled the horsepower gap. By 1972, falling traffic, a declining fleet of serviceable electrics and the deteriorating catenary caused Milwaukee Road to de-energize the western lines lines with Avery to Harlowton lines following two years later.

Meanwhile on the east end, as a condition of the 1971 merger of Monon into L&N, Milwaukee Road received trackage rights from Chicago to Louisville. This gave Southern a friendly connection to Chicago it was losing with Monon.

In 1977, Milwaukee Road entered receivership again. This time, radical restructuring was needed. In 1980, everything west of Miles City, Montana was abandoned. Some lines were picked up by connections or spawned new shortlines but nearly 1,000 miles of track was pulled up. In 1982, Miles City to Ortonville, Minnesota was abandoned. Milwaukee was concentrating on their pre-1909 routes plus the new line to Louisville.

In an attempt to win back middle distance TOFC traffic, Milwaukee began running fast and short piggyback trains, usually behind a single SD40-2 and with a dozen or so 89’ flats. Unit coal trains added to the bottom line. By the mid-80s, the streamlined Milwaukee Road was up for sale and Grand Trunk Western, Chicago & North Western and Soo Line got into a bidding war. GTW had diverted 40,000 cars onto Milwaukee Road between Chicago and Duluth to help them turn a profit in 1983. Ironically, the ICC (which controlled mergers at the time) pushed GTW out of the contest leaving just C&NW and Soo. Furious, GTW diverted their 40,000 carloads off the Milwaukee. C&NW outbid Soo, but the ICC chose Soo Line anyway. Milwaukee Road merged into Soo Line in 1985. Almost immediately, Soo shops began painting big black rectangles over MILWAUKEE ROAD on the diesels, giving birth to the “bandit” paint scheme.

Brand/Importer Information: In 1924 Stephan Schaffan, Sr. founded the Atlas Tool Company in Newark, New Jersey. In 1933 his son, Stephan Schaffan, Jr., came to work for his father at the age of sixteen. Steve Jr. built model airplanes as a hobby and frequented a local hobby shop. Being an enterprising young man, he would often ask the owner if there was anything he could do to earn some extra spending money. Tired of listening to his requests, the hobby-store owner threw some model railroad track parts his way and said, "Here, see if you can improve on this".

In those days, railroad modelers had to assemble and build everything from scratch. Steve Jr. created a "switch kit" which sold so well, that the entire family worked on them in the basement at night, while doing business as usual in the machine shop during the day.

Subsequently, Steve Jr. engineered the stapling of rail to fiber track, along with inventing the first practical rail joiner and pre-assembled turnouts and flexible track. All of these products, and more, helped to popularize model railroading and assisted in the creation of a mass-market hobby. The budding entrepreneur quickly outgrew the limitations of a basement and small garage operation. Realizing they could actually make a living selling track and related products, Steve and his father had the first factory built in Hillside, New Jersey at 413 Florence Avenue in 1947. On September 30, 1949, the Atlas Tool Company was officially incorporated as a New Jersey company.

In 1985, Steve was honored posthumously for his inventions by the Model Railroad Industry Association and was inducted into the Model Railroad Industry Hall of Fame in Baltimore, Maryland. In addition, Steve was nominated and entered into the National Model Railroad Association Pioneers of Model Railroading in 1995.

In the early 1990s, the Atlas Tool Company changed its name to Atlas Model Railroad Company, Inc.