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InterMountain - 69505-09 - Locomotive, Diesel, EMD SD40T-2 - Duluth Missabe & Iron Range - 415

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N Scale - InterMountain - 69505-09 - Locomotive, Diesel, EMD SD40T-2 - Duluth Missabe & Iron Range - 415 Image Courtesy of InterMountain Railway
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Stock Number69505-09
BrandInterMountain
ManufacturerInterMountain Railway
Body StyleIntermountain Diesel SD45T-2
Image Provider's WebsiteLink
Prototype VehicleLocomotive, Diesel, EMD SD40T-2 (Details)
Road or Company NameDuluth Missabe & Iron Range (Details)
Road or Reporting Number415
Paint Color(s)Maroon w. Yellow arrow
Print Color(s)Maroon
Coupler TypeMT Magne-Matic Knuckle
Coupler MountBody-Mount
Wheel TypeChemically Blackened Metal
Wheel ProfileSmall Flange (Low Profile)
DCC ReadinessReady
Announcement Date2009-08-01
Release Date2010-06-01
Item CategoryLocomotives
Model TypeDiesel
Model SubtypeEMD
Model VarietySD45T-2
Prototype RegionNorth America
Prototype EraNA Era IV: 2nd Gen Diesel (1958 - 1978)
Scale1/160



Model Information: InterMountain first introduced this model in 2005, and has produced several additional runs 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: Models produced up to 2010 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 DM&IR was born in 1937 with the merger of the Duluth Missabe & Northern and the Spirit Lake Transfer Railway. The DM&N had leased the Duluth & Iron Range since 1930 and both were owned by United States Steel. The D&IR was absorbed by the DM&IR in 1938.

The DM&IR ran from the twin ports of Duluth and Superior on the Minnesota-Wisconsin border at the tip of Lake Superior, and Two Harbors, Minnesota north and northwest into the Vermilion and Missabe Ranges of northeast Minnesota. Total mileage was 357. Several of the mainlines are double track and DM&IR operated them with left-hand running. The majority of DM&IR traffic over the decades has been iron ore.

Because DM&IR has traditionally had the heaviest average trains in the nation, their steam fleet had some real monsters. 2-8-8-4 Yellowstones were the biggest. Single Yellowstones were regularly assigned to pull 18,000 ton ore trains on some of the flatter districts. Their biggest yard switchers were 0-10-0’s. DM&IR was the last of the US Steel railroads to dieselize (in 1959) so as the other roads in the US Steel family dieselized, they sent the cream of their steam fleets to the DM&IR. Mikados came from EJ&E. Bessemer & Lake Erie sent their huge Texas-type 2-10-4’s and the Union Railroad sent their 0-10-2’s. That’s not a typo, they had 0-10-2’s. They were used to replace older mallets in pusher service then ended their careers switching the ore docks.

DM&IR dieselized with SD9’s (running short hood forward), SD18’s and ultimately SD38’s. They were one of a handful of Class One railroads to get through the transition era without ever buying cab unit. The SD38 has just 2000 horsepower but has nearly the same tractive effort as an SD40 at low speeds. Many roads bought them to shove trains over the crest in hump yards, but three of the US Steel railroads used them for low speed road service. By the mid-70s, DM&IR had 98 diesels. Many years later, DM&IR was one of the roads to buy rebuilt former SP Tunnel Motors.

Raw iron ore was hauled in 70 ton 24’ long ore cars. The same cars with extension boards are used to haul Taconite. Taconite is low grade ore that is crushed to dust, then combined with bentonite clay and rolled into little balls. It’s less dense than raw ore, doesn’t require further grading, and resists freezing to the cars. This allows all-rail movement of taconite to the steel mills when the Great Lakes freeze over. In the 70s, DM&IR began draw-barring sets of 4 ore cars together which saved on brake hose failure and lowered the tare weigh

t somewhat. They referred to these sets as “mini-quads.” US Steel transferred B&LE and DM&IR to a subsidiary called Transtar. In 2001, the Transtar roads were sold to Great Lakes Transportation. In 2004, DM&IR and B&LE were sold to Canadian National.
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 2016-12-31 14:08:59. Last edited by gdm on 2020-07-24 07:24:34

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