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Atlas - 50821 - Locomotive, Diesel, EMD GP7 - Detroit and Toledo Shore Line - 48

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N Scale - Atlas - 50821 - Locomotive, Diesel, EMD GP7 - Detroit and Toledo Shore Line - 48 Image Courtesy of Atlas Model Railroad
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Stock Number50821
Original Retail Price$124.95
BrandAtlas
ManufacturerAtlas
Body StyleAtlas Diesel Engine GP7
Image Provider's WebsiteLink
Prototype VehicleLocomotive, Diesel, EMD GP7 (Details)
Road or Company NameDetroit and Toledo Shore Line (Details)
Reporting MarksDTS
Road or Reporting Number48
Paint Color(s)Black and Yellow
Coupler TypeAccuMate Magnetic Knuckle
Wheel TypeChemically Blackened Metal
Wheel ProfileSmall Flange (Low Profile)
DCC ReadinessDC/DCC Dual Mode Decoder
Announcement Date2007-08-01
Release Date2008-01-01
Item CategoryLocomotives
Model TypeDiesel
Model SubtypeEMD
Model VarietyGP7
Prototype RegionNorth America
Prototype EraNA Era III: Transition (1939 - 1957)
Scale1/160



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:
The D&TS was built just after the turn of the 20th Century, originally as a fast interurban line connecting Toledo with Detroit. With construction well underway (about 3/4 of the way to Detroit) and some of the trolley wire up, the backers started to run out of money and sold the line to Grand Trunk Western and The Clover Leaf Route, with each getting half. This would give GTW (which blanketed southern Michigan) a friendly connection to the rail hubs at Toledo. The Clover Leaf (officially the Toledo St. Louis & Western) got a friendly connection to Detroit. The trolley wire came down and the track was upgraded to GTW standards. From then on, Detroit & Toledo Shore Line was a multi-track 59 mile speedway for freight. Ironically for a line conceived as an interurban, the D&TS never offered passenger service. Later, they would adopt the motto, “Expressway for Industry.” In 1923, the Nickel Plate Road merged the Clover Leaf and took over their half of the D&TS.

In the steam era, about 30 locomotives were required to run the line. 2-8-2’s and 2-8-0’s handled the road traffic while USRA 0-8-0’s and some smaller switchers worked the yards. The D&TS dieselized in the early 50s with just three EMD models, SW7s and SW9s for switching and GP7s for road service. The 1953 batch of geeps was the last locomotives bought by the railroad! These were delivered in a yellow-over-blue paint scheme. The narrowly focused roster made the shop crews experts at getting the most from the fleet and keeping them running for the next three decades.

The crooked square logo is a nod to Grand Trunk Western while the black and yellow paint scheme adopted around 1959 is a nod to the Nickel Plate. In 1964, the Nickel Plate was merged into Norfolk & Western so they took the 50% stake in the D&TS. The Shore Line kept the Nickel Plate-esque paint scheme until the end however.

D&TS trains routinely ran north past Detroit and into Flint on GTW tracks, while GTW trains ran south all the way to the Toledo Terminal loop. After the 1964 N&W-Nickel Plate-Wabash merger, N&W had a better line west out of Detroit on the former Wabash rather than using the D&TS and the old Clover Leaf (which had been built on the cheap.) From then on, the D&TS became much more important to the GTW than to the N&W. In 1981, N&W finally sold their half to the Grand Trunk Western and the Detroit & Toledo Shore Line was merged into the GTW.
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.
Item created by: trainnut3500 on 2017-06-21 14:57:35

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