Atlas - 48233 - Locomotive, Diesel, EMD GP7 - Wabash - 475

Specific Item Information: w/o dynamic brakes

Model Information: The Atlas GP7, GP9 and GP9-TT models are some of their oldest models. The models share the same internal mechanisms and differ only in their shell details. Unlike many of their other older body styles, these bodies have been updated several times and are still a regular part of the Atlas production cycle.

The first release of this body type was in 1974 and the models were produced by Roco in Austria. Production for these models ended in 1982. The next release started in 1987 and the models were re-tooled by Kato in Japan for Atlas. The third version came out in 1995 and was made in China for Atlas and these engines were essentially a redo of the Kato mechanism. Finally, in 2006, a completely new mechanism was introduced and this 4th version is a split frame, dual-flywheel, slow-motor, modern engine. Furthermore, with the more recent releases, most road-names and numbers are available in both a DCC-Ready and a Decoder-Equipped version.

Assembly instructions from Atlas: GP7 (Japan version), GP7 Ph.1 (China version), GP7 Ph.2 (China version).

DCC Information: The first version of this engine (Roco) gets a solid "No" for DCC capability, but this is no surprise as these were made in 1974. The next two releases (Kato and China) are split-frame, but also split-board. They may be DCC-Friendly, but likely it will be a fair amount of work to upgrade these. The most recent version (China, 2006+) is eminently DCC-Ready. Furthermore, most road-names and numbers produced since 2006 are available in both a DCC-Ready and a Decoder-Equipped version. Earlier DCC factory-equipped versions were fitted with Lenz LE063XF decoders, whereas most recent versions are fitted with NCE N12A2 decoders. The Atlas version of these decoders will respond to manufacturer's address "127" (CV8) i.e. "Atlas Model Railroad Products", though being identical to their original manufacturer's specification.

For non-DCC-ready versions, a wired DCC decoder installation for this model can be found on Brad Myers' N-scale DCC decoder installs blog.

Models produced since 2006 accept the following plug-in decoders:
- Digitrax DN163A4: 1.5 Amp N Scale Board Replacement Mobile Decoder for Atlas GP30 and other short Atlas diesel locomotives.
- Digitrax DN163A2: Retired decoder, replaced by DN163A4.
- NCE N12A2: Plug and play decoder for N-Scale Atlas Classic Series GP7, GP9, GP30, GP35.
- TCS ASD4 (Installation for GP7, Installation for GP9)
- MRC 1955: N-Scale Sound Decoder for Atlas GP-7, GP-9, GP-30 or GP-35

Prototype History: The EMD GP7 is a four-axle (B-B) road switcher diesel-electric locomotive built by General Motors Electro-Motive Division and General Motors Diesel between October 1949 and May 1954. Power was provided by an EMD 567B 16-cylinder engine which generated 1,500 horsepower (1,119 kW). The GP7 was offered both with and without control cabs, and those built without control cabs were called a GP7B. Five GP7B's were built between March and April 1953. The GP7 was the first EMD road locomotive to use a hood unit design instead of a car-body design. This proved to be more efficient than the car body design as the hood unit cost less to build, was cheaper and easier to maintain, and had much better front and rear visibility for switching.

Of the 2,734 GP7's built, 2,620 were for American railroads (including 5 GP7B units built for the Atchison, Topeka and Santa Fe Railway), 112 were built for Canadian railroads, and 2 were built for Mexican railroads. This was the first model in EMD's GP (General Purpose) series of locomotives. Concurrently, EMD offered a six-axle (C-C) SD (Special Duty) locomotive, the SD7.

From Wikipedia

Road Name History: Wabash was the product of an 1889 restructuring (under the leadership of Jay Gould) of several railroads centered around the Wabash St. Louis & Pacific. Wabash was unusual in that it evenly straddled the border between “eastern railroads” and railroads west of the Chicago-St.Louis-Memphis-New Orleans border. In the west, Wabash connected Kansas City, Omaha and Des Moines. Heading east from those points, Wabash reached St. Louis, Decatur, and Chicago. Then, clearly in the eastern territory, Wabash reached Fort Wayne, Detroit, Toledo and finally Buffalo. Total length was about 2500 miles. The Detroit to Buffalo line cut though southern Ontario, Canada on Canadian National trackage rights. That route also required a car float operation across the Detroit River. As a result, Wabash’s Buffalo traffic was a fraction of that of competitors Nickel Plate and New York Central. However, Wabash’s Detroit-Kansas City and Detroit-St. Louis service was a force to be reckoned with and well patronized by Michigan’s automakers. The Wabash Cannonball was the name of the daytime passenger run between Detroit and St. Louis. The song of the same name was a hit long before it was ever applied to the train itself. Wabash bought control of the Ann Arbor in 1925 and soon after, Wabash and Delaware & Hudson jointly bought control of the Lehigh Valley (Wabash’s principle connection in Buffalo.) This got the attention of the Pennsylvania Railroad who bought control of Wabash under the auspices of their “Pennsylvania Company” subsidiary in 1928.

As PRR planned their merger with New York Central, it became obvious that they could not take Wabash with them. The first step was to transfer control of Ann Arbor from Wabash to Detroit Toledo & Ironton (also in the Pennsylvania Company family.) Up to that point, Ann Arbor was routinely included in the official Wabash system map. Then PRR arranged for Wabash to be included in the Norfolk & Western-Nickel Plate-Pittsburgh & West Virginia merger that was being planned. PRR didn’t overtly control the N&W but they did have considerable influence over them. The deal was made and the new, larger Norfolk & Western leased the Wabash for 50 years in October of 1964. At that point, Wabash became a paper railroad. They were finally merged out of existence by N&W successor Norfolk Southern in the 1990s.

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.