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InterMountain - 69108-07 - Locomotive, Diesel, EMD F3 - Baltimore & Ohio - 139

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N Scale - InterMountain - 69108-07 - Locomotive, Diesel, EMD F3 - Baltimore & Ohio - 139 Image Courtesy of InterMountain Railway
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Stock Number69108-07
Original Retail Price$129.95
BrandInterMountain
ManufacturerInterMountain Railway
Body StyleIntermountain Diesel F3 (A+B)
Image Provider's WebsiteLink
Prototype VehicleLocomotive, Diesel, EMD F3 (Details)
Road or Company NameBaltimore & Ohio (Details)
Road or Reporting Number139
Paint Color(s)Blue and Gray w. Yellow Stripe
Print Color(s)Yellow
Coupler TypeMT Magne-Matic Knuckle
Wheel TypeChemically Blackened Metal
Wheel ProfileSmall Flange (Low Profile)
DCC ReadinessReady
Release Date2018-03-01
Item CategoryLocomotives
Model TypeDiesel
Model SubtypeEMD
Model VarietyF3A
Prototype RegionNorth America
Prototype EraNA Era III: Transition (1939 - 1957)
Scale1/160



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 Baltimore and Ohio Railroad (reporting marks B&O, BO) is one of the oldest railroads in the United States and the first common carrier railroad. It came into being mostly because the city of Baltimore wanted to compete with the newly constructed Erie Canal (which served New York City) and another canal being proposed by Pennsylvania, which would have connected Philadelphia and Pittsburgh. At first this railroad was located entirely in the state of Maryland with an original line from the port of Baltimore west to Sandy Hook. At this point to continue westward, it had to cross into Virginia (now West Virginia) over the Potomac River, adjacent to the confluence of the Potomac and Shenandoah rivers. From there it passed through Virginia from Harpers Ferry to a point just west of the junction of Patterson Creek and the North Branch Potomac River where it crossed back into Maryland to reach Cumberland. From there it was extended to the Ohio River at Wheeling and a few years later also to Parkersburg, West Virginia.

It is now part of the CSX Transportation (CSX) network, and includes the oldest operational railroad bridge in the USA. The B&O also included the Leiper Railroad, the first permanent horse-drawn railroad in the U.S. In later years, B&O advertising carried the motto: "Linking 13 Great States with the Nation." Part of the B&O Railroad's immortality has come from being one of the four featured railroads on the U.S. version of the board game Monopoly, but it is the only railroad on the board which did not serve Atlantic City, New Jersey, directly.

When CSX established the B&O Railroad Museum as a separate entity from the corporation, some of the former B&O Mount Clare Shops in Baltimore, including the Mt. Clare roundhouse, were donated to the museum while the rest of the property was sold. The B&O Warehouse at the Camden Yards rail junction in Baltimore now dominates the view over the right-field wall at the Baltimore Orioles' current home, Oriole Park at Camden Yards.

At the end of 1970 B&O operated 5552 miles of road and 10449 miles of track, not including the Staten Island Rapid Transit (SIRT) or the Reading and its subsidiaries.

Read more on Wikipedia.
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.
Item created by: Powderman on 2018-02-06 18:19:51. Last edited by gdm on 2020-05-14 19:06:41

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