InterMountain - 69751-01 - Locomotive, Diesel, EMD F7B - Alaska Railroad - 1511

Model Information:
Features of this model include (2023 run):

• LED lighting - All lights separately controllable on DCC units.
  • Upper nose MARS Light (where applicable)(single headlight units, upper nose light acts as the headlight)
  • Lower Headlight (where applicable)
  • Illuminated number boards
  • Ditch Lights (DCC only)(No units factory equipped with ditch lights, however LEDs are provided for use by the modeler)
• Wire & Etched metal details
• Laser sharp painting and printing
• Micro-Trains compatible couplers

DCC Information:
The 2023 run is available in 3 versions:

• DC models equipped with a DC only circuit board and are DCC Ready.
• Non-Sound equipped with an ESU LokPilot 5 DCC decoder (stock number suffixed by letter D)
• Sound units equipped with an ESU LokSound 5 sound decoder. Real F7 locomotive recordings used for superior accuracy and quality! (stock number suffixed by letter S)

Prototype History: The F7 was the fourth model in GM-EMD's successful line of F unit locomotives, and by far the best-selling cab unit of all time. In fact, more F7's were built than all other F units combined. It succeeded the F3 model in GM-EMD's F unit sequence, and was replaced in turn by the F9. Final assembly was at GM-EMD's La Grange, Illinois, plant or GMD's London, Ontario, facility.

The F7 differed from the F3 primarily in internal equipment (mostly electrical) and some external features. Its continuous tractive effort rating was 20% higher (e.g. 40,000 lb (18,000 kg) for an F7 with 65 mph (105 km/h) gearing, compared to 32,500 lb (14,700 kg) for an F3 with the same gearing.

A total of 2,366 cab-equipped lead A units and 1,483 cabless-booster or B units were built. (Note: the B unit is often referred to as an "F7B", whereas the A unit is simply an "F7".)

Many F7s remained in service for decades, as railroads found them economical to operate and maintain. However, the locomotive was not very popular with yard crews who operated them in switching service because they were difficult to mount and dismount, and it was also nearly impossible for the engineer to see hand signals from a ground crew without leaning way outside the window. As most of these engines were bought and operated before two-way radio became standard on most American railroads, this was a major point of contention. In later years, with the advent of the "road switchers" such as the EMD GP7, F units were primarily used in "through freight" and "unit train" service where there was very little or no switching to be done on line of road.

From Wikipedia
Read more on American-Rails.com

Road Name History: Born in 1923 with the consolidation and connection of the Tanana Valley and Alaska Northern railroads, the line was owned by the Federal Government (under the Department of the Interior) from the outset, later becoming the responsibility of the Department of Transportation in 1967. In the mid-80s it was sold to the State of Alaska.

The Alaska Railroad links Anchorage with the port of Whittier and Seward to the south, and Fairbanks and environs to the north. Total mileage is about 525 putting it between Bangor & Aroostook and New York Ontario & Western in relative size. Alaska does run its own passenger service over the length of the railroad. Although the Alaska Railroad is disconnected from the rest of the North American rail network, they do interchange with other railroads. A trio of sea-going barges ferry rail cars from the port of Whittier to Prince Rupert, British Columbia, and Seattle, Washington. ARR had collected a fleet of Alco RS-1s (and a few RSD-1’s) with cowls, effectively making them cab units unique to this line. These were later replaced by second generation EMD power. The big power on the line is a fleet of 28 SD70MACs. A dozen of these are equipped with HEP for use in passenger service.

The port of Whittier is hemmed in by the ocean on one side and mountains on the other. A 2.5 mile single track tunnel is the only way out of the port. The line through the tunnel is paved like street trackage so that highway traffic can use the tunnel. It is a single lane so highway traffic going south enters from the top of the hour until quarter after. Northbound traffic enters from the bottom of the hour until 45 after the hour. Trains get priority and proceed as soon as traffic has cleared.

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.