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Specific Item Information: GP9, Phase 2 with Dynamic Brakes
Model Information: The Atlas GP7, GP7-TT, GP9 and GP9-TT models are some of Atlas' oldest models. The four locomotives 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.
Given their long history of releases, these models come in a plethora of different versions. 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 Kato version re-used the same mechanism as was used in the earlier RS3. It doesn't work as well in the Geep. The third version was made in China for Atlas and these engines were essentially a redo of the Kato mechanism (with all the faults). Finally, in 2006, the mechanism was redone properly and this 4th version is a properly DCC-Ready split frame, slow-motor modern engine.
Assembly instructions from Atlas: GP9 (Japan version), GP9 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
One option available for locomotives without dynamic brakes, was to remove the two 22.5 in × 102 in (571.5 mm × 2,590.8 mm) air reservoir tanks from under the frame, and replace them with four 12 in × 150.25 in (304.80 mm × 3,816.35 mm) tanks that were installed on the roof of the locomotive, above the prime mover. These “torpedo tubes” as they were nicknamed, enabled the fuel and water tanks to be increased to 1,100 US gallons (4,200 l; 920 imp gal) each, although some railroads opted for roof-mounted air tanks and 2,200 US gallons (8,300 l; 1,800 imp gal) fuel tanks on their freight ‘Geeps’.
Road Name History:
CN is the largest railway in Canada, in terms of both revenue and the physical size of its rail network, and is currently Canada's only transcontinental railway company, spanning Canada from the Atlantic coast in Nova Scotia to the Pacific coast in British Columbia. Its range once reached across the island of Newfoundland until 1988, when the Newfoundland Railway was abandoned.
Following CN's purchase of Illinois Central (IC) and a number of smaller US railways, it also has extensive trackage in the central United States along the Mississippi River valley from the Great Lakes to the Gulf of Mexico. Today, CN owns about 20,400 route miles (32,831 km) of track in 8 provinces (the only two not served by CN are Newfoundland & Labrador and Prince Edward Island), as well as a 70-mile (113 km) stretch of track (see Mackenzie Northern Railway) into the Northwest Territories to Hay River on the southern shore of Great Slave Lake; it is the northernmost rail line anywhere within the North American Rail Network, as far north as Anchorage, Alaska (although the Alaska Railroad goes further north than this, it is isolated from the rest of the rail network).
The railway was referred to as the Canadian National Railways (CNR) between 1918 and 1960, and as Canadian National/Canadien National (CN) from 1960 to the present.
Read more on Wikipedia.
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: Powderman on 2017-12-30 16:26:55. Last edited by gdm on 2018-06-20 07:59:27
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