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InterMountain - 69425S-05 - Locomotive, Diesel, EMD SD40T-2 - Union Pacific - 8652

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N Scale - InterMountain - 69425S-05 - Locomotive, Diesel, EMD SD40T-2 - Union Pacific - 8652 Image Courtesy of InterMountain Railway
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Stock Number69425S-05
BrandInterMountain
ManufacturerInterMountain Railway
Body StyleIntermountain Diesel SD40T-2
Image Provider's WebsiteLink
Prototype VehicleLocomotive, Diesel, EMD SD40T-2 (Details)
Road or Company NameUnion Pacific (Details)
Reporting MarksUP
Road or Reporting Number8652
Paint Color(s)Gray with Red ends and Yellow patch
Print Color(s)White and Red
Paint SchemeSpeed Lettering
Coupler TypeMT Magne-Matic Knuckle
Wheel TypeChemically Blackened Metal
Wheel ProfileSmall Flange (Low Profile)
DCC ReadinessDC/DCC Dual Mode Decoder w/Sound
Announcement Date2015-04-01
Release Date2017-04-01
Item CategoryLocomotives
Model TypeDiesel
Model SubtypeEMD
Model VarietySD40T-2
Prototype RegionNorth America
Prototype EraNA Era IV: 2nd Gen Diesel (1958 - 1978)
Scale1/160



Specific Item Information: "Patched" Union Pacific ex-SP, "Snoot" nose
These locomotives are painted SP Grey with white lettering and the signature "Bloody nose"  In addition they have been patched yellow with red lettering and re-numbered into the UP Numbering series following the merger. They are fully assembled with etched metal roofwalks and xxxxx trucks and couplers.

Note: This series 69425 actually comprises two different body styles: -01 to -04 are with short nose and Roman lettering, -05 to -08 are with snoot nose and Speed lettering.
Model Information: InterMountain first introduced this model in 2003. Several additional runs have been produced since then.

The design of the chassis is very much similar to the Atlas SD50/60 mechanism. It sports all the features one normally associates with "modern" diesel models - IE, DCC-Ready / split-frame / all-metal chassis, 5-pole / skew-wound / "slow speed" motor, dual flywheels, low-friction drive, bi-directional LED lighting, all-wheel drive and pickup (no traction tires), blackened / low-profile wheels, shell-mounted magnetic knuckle couplers, all-plastic gearing, etc.

Assembly instructions from Intermountain: SD40T-2 / SD45T-2 (or on company website)
Note on this drawing that several parts are actually Atlas parts.
DCC Information: From the run announced in 2015, 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. The new associated design induced significant delays, and the new models are now announced to be released in 2017.

Models produced up to 2009 accept the following plug-in decoders (non-sound):
- Digitrax DN166I0: 1.5 Amp Decoder for Intermountain N scale SD40T-2 / SD45T-2.
- TCS IMD4: BEMF decoder designed to fit Intermountain N scale SD40T-2, SD45T-2, SD45-2.
- NCE N12AOe: Plug and Play, 2 function decoder for Intermountain Tunnel Motors.
Prototype History:
An SD40T-2 is a 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division having a 16-cylinder EMD 645E3 diesel engine producing 3,000 horsepower (2,240 kW). 312 SD40T-2s were built for North American railroads between April 1974 and July 1980. This locomotive and the SD45T-2 are popularly called tunnel motors, but EMD's term is SD40-2s with "cooling system modifications" because they were designed for better engine cooling in tunnels. The difference between this locomotive and its non-tunnel motor cousin, the SD40-2, are the radiator intakes and radiator fan grills located at the rear of the locomotive. The radiator air intakes in this model were along the deck to allow more fresh, cooler air to enter and less hot exhaust fumes lingering around the tunnel's ceiling. EMD SD45T-2 vs SD40T-2 radiator fan motor access doors

This locomotive model was purchased by the Denver and Rio Grande Western Railroad, the Southern Pacific Railroad, and its subsidiary Cotton Belt. Southern Pacific's version has a 4,400-US-gallon (16,700 L; 3,660 imp gal) fuel tank and is 70 feet 8 inches (21.54 m) long. Rio Grande's version has a smaller 4,000-US-gallon (15,100 l; 3,330 imp gal) fuel tank. After merging with Rio Grande, the Southern Pacific and later Union Pacific owned every SD40T-2.

In 2005, most of these units were owned by Union Pacific or leasing companies. By 2008, none were left in service on UP with SP or DRGW reporting marks. DRGW 5371 was the last one, retired in March 2008, and now resides at the Utah State Railroad Museum in Ogden Utah. Another SD40T-2 is preserved at the Boone & Scenic Valley Railroad in Boone, Iowa. UP still runs a few units repainted in its own livery.

Full EMD SD40T-2 data sheet on The Diesel Workshop.

Read more on Wikipedia.
Read more on American-Rails.com
Road Name History:
The Union Pacific Railroad (reporting mark UP) is a freight hauling railroad that operates 8,500 locomotives over 32,100 route-miles in 23 states west of Chicago, Illinois and New Orleans, Louisiana. The Union Pacific Railroad network is the largest in the United States and employs 42,600 people. It is also one of the world's largest transportation companies.

Union Pacific Railroad is the principal operating company of Union Pacific Corporation (NYSE: UNP); both are headquartered in Omaha, Nebraska. Over the years Union Pacific Corporation has grown by acquiring other railroads, notably the Missouri Pacific, Chicago & North Western, Western Pacific, Missouri-Kansas-Texas, and the Southern Pacific (including the Denver & Rio Grande Western).

Union Pacific Corporation's main competitor is the BNSF Railway, the nation's second largest freight railroad, which also primarily services the Continental U.S. west of the Mississippi River. Together, the two railroads have a duopoly on all transcontinental freight rail lines in the U.S.

Read more on Wikipedia and on Union Pacific official website.
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: Alain LM on 2016-11-01 13:30:10. Last edited by gdm on 2020-05-27 08:18:30

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