InterMountain - 69747 - Locomotive, Diesel, EMD F7 - Chicago Great Western

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: Chicago Great Western was the result of the 1892 reorganization of the Chicago St. Paul & Kansas City. By 1903, the CGW had grown to its maximum size. The CGW had a vaguely cross-shaped system map. The east-west leg started in Chicago and linked Dubuque, Fort Dodge (both in Iowa) and finally Omaha, Nebraska. The north-south line started in St. Paul, Minnesota and linked Waterloo and Des Moines, Iowa then St. Joseph and Kansas City, Missouri. Each axis consisted of a big arc which put CGW at a distance disadvantage to most other railroads servicing the same region – and there were a lot of railroads in the area.

Passenger service was never a major priority and many trains consisted of doodlebugs and trailers even before World War One. In the 1920s CGW did team up with Santa Fe to run through sleepers from the Twin Cities to Los Angeles.

Big mainline power in the 30s and 40s consisted of a fleet of 3 dozen 2-10-4s. In 1936, CGW launched piggyback service – one of the first in the nation. One piggyback customer was a truck line specializing in hauling steel. Since CGW charged by the trailer, the truck line would take the contents of 3 trailers which had maxed out on highway weight and reload all the steel into a single catastrophically heavy trailer that would ride the flat car. They didn’t tell CGW though. No one was the wiser until the landing gear on a trailer punched through the deck of the flat car and derailed a train at speed!

By 1950, CGW had completely dieselized with a mix of Alco, Baldwin and EMD switchers, Alco and EMD road switchers (the former running long hood forward and the latter equipped with dual controls,) and a sizable fleet of EMD F units. By this time, the Deramus family (who already controlled the Kansas City Southern) had gained control of the CGW. Over the years, they cut costs and services. CGW began holding trains until they reached maximum tonnage. Trains between 150 and 250 cars were a daily occurrance behind A-B-B-B-B-A sets of F units. What’s more, these monsters would stop and switch along the way!

Around 1951, they dropped “The Corn Belt Route” logo in favor of the Lucky Strike style logo. The first generation of diesels were delivered in ornate maroon, and red with yellow striping. This was replaced with a simplified solid maroon and then red with black roof (which was essentially the same as neighbor and fellow Deramus controlled Kansas City Southern.) The second generation of diesels consisted entirely of GP30’s and SD40’s.

Despite the iffy service and tremendous competition in the area, and thanks to the cost cutting and a dearth of money losing passenger operations that plagued their neighbors, CGW steadily made money through the 50s and 60s. But, in the age of mergers, it was clear they couldn’t make it on their own. CGW discussed merger with every possible connection but ultimately merged into Chicago & North Western in 1968. In their last full year, the CGW was a 1,411 mile line with 139 locomotives (for comparison, they were about the same size as Western Pacific.)

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.