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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).
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
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
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: 
TP&W first appeared under that name in 1887. For most of its history, the TP&W ran east and west from Peoria, Illinois, to Keokuk, Iowa on the west bank of the Mississippi River on one end and Effner just on the other side of the Illinois-Indiana state line. There were a couple of short branches on the west end of the line.
TP&W first attracted national attention in 1887 when a passenger excursion train wrecked in Chatsworth, Illinois. The double headed train originated in Peoria and was packed with excursionists headed for Niagara Falls (via connections.) The train was running at speed when it approached a low trestle that had been weakened by a prairie fire. The trestle was only about 15’ high. The lead locomotive made it across and the second engine plunged through it, bringing the train of wooden coaches to an instant halt. At least one of the coaches was telescoped by another. 85 were killed and hundreds injured.
In 1941, TP&W backed out of national labor negotiations over a pay increase that was being considered. TP&W instead pushed for hourly wages and loosening of work rule restrictions. The unions struck and with the outbreak of war, operations were taken over by the Federal Government. After the war, the government handed the operation back to the owner George McNear and the labor strike resumed. In 1947 McNear was assassinated by a striker and that was that. The railroad was sold and operation resumed.
In addition to the local traffic they generated across central Illinois, TP&W served as a bridge route between the Santa Fe at Lomax, Illinois near the west end and the Pennsylvania at Effner, Indiana on the east end. Santa Fe and Pennsy’s only direct connection was in Chicago with all of Chicago’s inherent congestion. Many traffic managers preferred to route through Peoria. For Santa Fe and Pennsylvania, that meant routing over the TP&W.
In the steam era, the kings of the TP&W were a group of six 4-8-4 Northerns purchased in 1937. These Alco’s were the smallest 4-8-4’s on the continent. The diesel era was dominated by Alco and EMD road switchers with a splash of F’s and Lima-Hamilton switchers (these were later replaced by SW1500’s.)
In 1960, the Minneapolis & St. Louis attempted to gain control of the TP&W as well as Monon. M&St.L was also a funnel for the Peoria Gateway and thought the TP&W a good addition. However, when Santa Fe and Pennsy got wind of M&St.L’s stock purchases, the Santa Fe put out their own buy order and quickly grabbed control away from M&St.L. Santa Fe then sold a 50% stake in the TP&W to the Pennsylvania.
In 1970, TP&W suffered a wreck in Crescent City, Illinois. A string of propane tank cars was involved. One of the cars caught fire. As it burned, it boiled the propane in the adjacent car. Eventually the pressure of the boiling fuel exceeded the strength of the fire weakened shell of the tank and it exploded. The cycle started again with the next car. The fire department had successfully evacuated Crescent City but was powerless to fight the fire as burning propane rained down on the town. Crescent City was all but destroyed and the accident led the FRA to set standards on track quality with power to embargo traffic from lines that fell below certain maintenance levels.
The creation of Conrail in 1976 changed traffic patterns for the TP&W. Bridge traffic to the Santa Fe began to dry up. TP&W bought the ex-PRR line from Effner to Logansport, Indiana and a new connection to N&W was established. This brought the TP&W mileage to just over 300 making it about the size of Ann Arbor.
In 1979 the corporate successor of Penn Central sold their half of the TP&W to Santa Fe. At the end of 1983, TP&W was merged into the Santa Fe. In 1986, 33 miles of former TP&W line toward the west end were sold to Keokuk Junction Rwy. But the story didn’t end there.
In 1989, the TP&W lines were spun off by Santa Fe to a group of investors and the TP&W was reborn. The 1995 BNSF merger brought trackage rights for TP&W over the former CB&Q from Peoria northwest to Galesburg. A year later, TP&W was purchased by Delaware Otsego Corporation who also owned the New York Susquehanna & Western and a few shortlines in the New York – Pennsylvania – New Jersey area. During DO ownership, a typical day saw 165 cars move on the line. In 1999, the RailAmerica shortline group made an offer for the TP&W that DO couldn’t refuse and that September, the sale was closed. In 2004, the lines west of Peoria were sold to Keokuk Junction with TP&W continuing with the routes east. In 2012, all of the RailAmerica roads, TP&W included, joined the Genesee & Wyoming shortline group.
TP&W first attracted national attention in 1887 when a passenger excursion train wrecked in Chatsworth, Illinois. The double headed train originated in Peoria and was packed with excursionists headed for Niagara Falls (via connections.) The train was running at speed when it approached a low trestle that had been weakened by a prairie fire. The trestle was only about 15’ high. The lead locomotive made it across and the second engine plunged through it, bringing the train of wooden coaches to an instant halt. At least one of the coaches was telescoped by another. 85 were killed and hundreds injured.
In 1941, TP&W backed out of national labor negotiations over a pay increase that was being considered. TP&W instead pushed for hourly wages and loosening of work rule restrictions. The unions struck and with the outbreak of war, operations were taken over by the Federal Government. After the war, the government handed the operation back to the owner George McNear and the labor strike resumed. In 1947 McNear was assassinated by a striker and that was that. The railroad was sold and operation resumed.
In addition to the local traffic they generated across central Illinois, TP&W served as a bridge route between the Santa Fe at Lomax, Illinois near the west end and the Pennsylvania at Effner, Indiana on the east end. Santa Fe and Pennsy’s only direct connection was in Chicago with all of Chicago’s inherent congestion. Many traffic managers preferred to route through Peoria. For Santa Fe and Pennsylvania, that meant routing over the TP&W.
In the steam era, the kings of the TP&W were a group of six 4-8-4 Northerns purchased in 1937. These Alco’s were the smallest 4-8-4’s on the continent. The diesel era was dominated by Alco and EMD road switchers with a splash of F’s and Lima-Hamilton switchers (these were later replaced by SW1500’s.)
In 1960, the Minneapolis & St. Louis attempted to gain control of the TP&W as well as Monon. M&St.L was also a funnel for the Peoria Gateway and thought the TP&W a good addition. However, when Santa Fe and Pennsy got wind of M&St.L’s stock purchases, the Santa Fe put out their own buy order and quickly grabbed control away from M&St.L. Santa Fe then sold a 50% stake in the TP&W to the Pennsylvania.
In 1970, TP&W suffered a wreck in Crescent City, Illinois. A string of propane tank cars was involved. One of the cars caught fire. As it burned, it boiled the propane in the adjacent car. Eventually the pressure of the boiling fuel exceeded the strength of the fire weakened shell of the tank and it exploded. The cycle started again with the next car. The fire department had successfully evacuated Crescent City but was powerless to fight the fire as burning propane rained down on the town. Crescent City was all but destroyed and the accident led the FRA to set standards on track quality with power to embargo traffic from lines that fell below certain maintenance levels.
The creation of Conrail in 1976 changed traffic patterns for the TP&W. Bridge traffic to the Santa Fe began to dry up. TP&W bought the ex-PRR line from Effner to Logansport, Indiana and a new connection to N&W was established. This brought the TP&W mileage to just over 300 making it about the size of Ann Arbor.
In 1979 the corporate successor of Penn Central sold their half of the TP&W to Santa Fe. At the end of 1983, TP&W was merged into the Santa Fe. In 1986, 33 miles of former TP&W line toward the west end were sold to Keokuk Junction Rwy. But the story didn’t end there.
In 1989, the TP&W lines were spun off by Santa Fe to a group of investors and the TP&W was reborn. The 1995 BNSF merger brought trackage rights for TP&W over the former CB&Q from Peoria northwest to Galesburg. A year later, TP&W was purchased by Delaware Otsego Corporation who also owned the New York Susquehanna & Western and a few shortlines in the New York – Pennsylvania – New Jersey area. During DO ownership, a typical day saw 165 cars move on the line. In 1999, the RailAmerica shortline group made an offer for the TP&W that DO couldn’t refuse and that September, the sale was closed. In 2004, the lines west of Peoria were sold to Keokuk Junction with TP&W continuing with the routes east. In 2012, all of the RailAmerica roads, TP&W included, joined the Genesee & Wyoming shortline group.
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.
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: gdm on 2016-03-03 17:44:49. Last edited by CNW400 on 2020-07-08 16:42:59
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