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
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.
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: Micro-Trains Line split off from Kadee Quality Products in 1990. Kadee Quality Products originally got involved in N-Scale by producing a scaled-down version of their successful HO Magne-Matic knuckle coupler system. This coupler was superior to the ubiquitous 'Rapido' style coupler due to two primary factors: superior realistic appearance and the ability to automatically uncouple when stopped over a magnet embedded in a section of track. The success of these couplers in N-Scale quickly translated to the production of trucks, wheels and in 1972 a release of ready-to-run box cars.
Micro-Trains Line Co. split off from Kadee in 1990 to form a completely independent company. For this reason, products from this company can appear with labels from both enterprises. Due to the nature of production idiosyncrasies and various random factors, the rolling stock from Micro-Trains can have all sorts of interesting variations in both their packaging as well as the products themselves. When acquiring an MTL product it is very important to understand these important production variations that can greatly enhance (or decrease) the value of your purchase.
Micro-Trains Line Co. split off from Kadee in 1990 to form a completely independent company. For this reason, products from this company can appear with labels from both enterprises. Due to the nature of production idiosyncrasies and various random factors, the rolling stock from Micro-Trains can have all sorts of interesting variations in both their packaging as well as the products themselves. When acquiring an MTL product it is very important to understand these important production variations that can greatly enhance (or decrease) the value of your purchase.
Item created by: petecduffy on 2019-06-07 15:52:55
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