InterMountain - 69125D-08 - Locomotive, Diesel, EMD F3 - Grand Trunk Western - 9011

Model Information: InterMountain introduced this model in 2005, and have since followed up with several subsequent runs. The model shares the same chassis as Intermountain's F7s. The PC board was re-designed in 2014 with motor contact "shoes" replaced by wires.

In December 2014, a new run of several road numbers was announced which introduced new factory DCC-equipped versions, sound and non-sound. These models come with a brand new design that incurred significant delays. First batch is expected to be delivered mid-2017.

These locos sport all of the niceties one normally associates with "modern" diesel models, e.g. - split-frame DCC-Ready metal chassis, dual-flywheels, low-friction drive, plastic truck assemblies, plastic gearing, blackened wheels, all-wheel drive / pick-up (no traction tires). The motor is an open-sided 5-poler. Directional lighting on A units is controlled by a PC board mounted on top of the chassis, and with the LED headlight mounted on the front of the chassis (with wires running between the two).

DCC Information:
Models released up to 2014: These locos are qualified as "DCC-Friendly" and not "Ready" because installing after-market decoders requires de-soldering and re-soldering a few wires. Not too complex, but you'll need a soldering iron...
- For locos released before 2014: front light of A units needs to be re-soldered to the decoder board.
- For locos released after 2014: in addition to the front light, the motor contacts are performed by two wires that need to be re-soldered to the decoder board.

Accepts the following decoders (non-sound):
- Digitrax DN163I1C: 1.5 Amp N Scale Mobile Decoder for Intermountain F3 / F7 Units. (discontinued)
- Digitrax DN166I1C: 1.5 Amp Decoder for Intermountain N scale F3 and F7 A & B units with motor contact "shoes".
- Digitrax DN166I1D: 1.5 Amp Decoder for InterMountain N Scale F7A & B units with wired motors produced after Jan 2014.
- TCS IMF4: 4 Function Decoder for Intermountain F3A/B, F7A/B and F9B N-Scale locomotives. (Installation for Intermountain F3A)
- TCS IMF4-NF: 4 Function Decoder for Intermountain F3A/B, F7A/B and F9B N-Scale locomotives produced after Jan 2014. (Installation for Intermountain F7A)

Models released as of 2017: this model is proposed factory-equipped with either a non-sound DCC decoder (models suffixed by "D") or a sound DCC decoder (models suffixed by "S"), both from ESU - LokSound Select Micro or LokPilot Micro.

Prototype History: The EMD F3 was a 1,500-horsepower (1,100 kW) B-B freight- and passenger-hauling diesel locomotive produced between July 1945 and February 1949 by General Motors’ Electro-Motive Division. Final assembly was at GM-EMD's La Grange, Illinois plant. A total of 1,111 cab-equipped lead A units and 696 cabless booster B units were built.

The F3 was the third model in GM-EMD's highly successful F-unit series of cab unit diesel locomotives, and it was the second most produced of the series. The F3 essentially differed from the EMD F2 in that it used the “new” D12 generator to produce more power, and from the later EMD F7 in electrical equipment. Some late-model F3's had the same D27 traction motors, along with the heavier-duty electrical cables, used in the F7, and were referred to as model F5 by EMD's Engineering Department.

From Wikipedia
Read more on American-Rails.com

Road Name History: The Grand Trunk Western dates from 1928 as part of the Canadian government’s process of nationalizing some major Canadian railroads (under the name Canadian National) including the Grand Trunk Railway which had built the line. The GT lines in Michigan, Indiana and Illinois were combined under the Grand Trunk Western banner. The GTW linked the Canadian border at Port Huron (north of Detroit, Michigan) with Chicago via Durand, Lansing, and South Bend. There were also routes to Detroit, Pontiac, Bay City, Carson City, and the Lake Michigan car ferry port of Muskegon (with ferry service to Wisconsin where GTW maintained a small yard and stationed a switcher.) The GTW had about 1,000 route miles during this period. So, the GTW was an American railroad that was a wholly owned subsidiary of a Canadian corporation, wholly owned by the Canadian government. In 1970, GTW was made a subsidiary of Grand Trunk Corporation (still wholly owned by CN) which also held sister roads Central Vermont, Duluth Winnipeg & Pacific and Grand Trunk (which operated in New York and New England.) This was done to give CN’s american employees more opportunities to advance in the organization.

The GTW steam fleet looked very much like what you would see on the CN but GTW’s engines were built in the U.S. by Alco, Lima, and Baldwin. A fleet of 58 Alco built Mikes handled the prime road freight assignments until augmented by 43 4-8-4’s from Alco and Lima. Parent CN also relied heavily on 4-8-4’s so this was not a surprise. The last of these was delivered in 1944. Despite picking up F units and geeps for freight service early on, GTW was late to retire steam. The last run (in passenger service no less) was in 1960!

The first generation of diesels included F’s and GP9’s (set up long hood forward as on parent CN) followed by GP18’s for freight service. GTW went to EMD and Alco for switchers. Road units were painted in a green and gold scheme essentially the same as that of CN but with their own lettering and logos.

In 1962, GTW adopted a new “noodle” logo using the letters GT to conform to CN’s own noodle logo adopted two years before. Locomotives were painted black with Morency Orange ends (later replaced with red) with light gray frame stripes and lettering. Cab units received the familiar “sergeant stripe” scheme used on CN. GTW’s second generation of diesels (which also introduced the switch to low short hoods and running short-hood-forward) began in 1969 with the delivery of SD40’s followed by GP38AC and GP38-2 models. In December of 1971, GTW switched from black to blue with red ends and white frame stripe and lettering.

In addition to acting as a link from Chicago to eastern Canada, GTW was also an important carrier for the auto industry. Their freight car fleet included large numbers of auto parts boxcars and auto racks. In the early 70’s, GTW adopted the motto, “the Good Track road” on their freight cars to set them apart from their derailment prone neighbor Penn Central.

In 1980, GTW acquired another railroad critical to the auto industry, the Detroit Toledo & Ironton. This gave GTW routes from Detroit to the Ohio River. A year later, they acquired Norfolk & Western’s half of the Detroit & Toledo Shore Line, merging that small bridge line connecting Detroit with Toledo.

At this point, GTW was over 1,500 miles long with 262 diesels and nearly 12,000 cars. In 1995, GTW’s parent Canadian National was privatized, at which point there was less need for the US subsidiaries to have distinctly separate identities. Grand Trunk Western continues as a “paper railroad” but operations on these lines are now run as part of the greater Canadian National system.

Brand/Importer Information: InterMountain was founded in 1985 by Fred Brummet. They got started in the model railroad business by producing O-Scale model kits. They got started in the N Scale business almost a decade later when in 1994 they introduced the 40-23 reefer car in kit form. Later, in 1998, they started producing RTR (Ready-to-Run) models. By the early 2000s, InterMountain phased out kit production in favor of the RTR models.

The InterMountain Railway company is located at 1224 Boston Ave in Longmont, CO. They are a manufacturer of HO, N and Z scale model trains. They have produced kits as well as RTR (Ready-To-Run) models. Their N Scale products include locomotives as well as rolling stock. Their rolling stock lineup includes Boxcars, Hoppers, Tank Cars, Reefers, Gondolas, Stock Cars and Flatcars.

Their locomotive releases have primarily been diesel units, with the one major exception being their series of AC-12 Cab Forward steam locos. Their diesel lineup includes F3's, F7's, F9's, SD40's, SD45's and FT units. They are known for quality and detail. They also release their rolling stock in larger varieties of road numbers than most of the other manufacturers.