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Model Information: These trolleys come in pairs. One is powered and the other is a dummy.
While EMD's E-units were successful passenger engines, their A1A-A1A wheel arrangement made them less useful in mountainous terrain. Several railroads had tried EMD's F3 in passenger service, but there was insufficient water capacity in an A-unit fitted with dynamic brakes. The Atchison, Topeka and Santa Fe Railway's solution was to replace the steam generators in A-units with a water tank, and so only fitted steam generators into the B-units. The Northern Pacific Railway's solution was to fit extra water tanks into the first baggage car, and to pipe the water to the engines. The real breakthrough came when EMD recognized the problem and added the stretched FP7 to its catalog.
A total of 381 cab-equipped lead A units were built; unlike the freight series, no cables booster B units were sold. Regular F7B units were sometimes used with FP7 A units, since they, lacking cabs, had more room for water and steam generators. The FP7 and its successor, the FP9, were offshoots of GM-EMD's highly successful F-unit series of cab unit freight diesels.
F3s, F7s, and F9s equipped for passenger service are not FP-series locomotives, which although similar in appearance have distinctive differences, including but not limited to the greater body length. The extra 4 ft (1.2 m) of length was added behind the first body-side porthole, and can be recognised by the greater distance between that porthole and the first small carbody filter grille. The corresponding space beneath the body, behind the front truck, was also opened up; this either remained an empty space or was filled with a distinctive water tank shaped like a barrel mounted transversely.
Railroads found that Fs, with their better tractive effort performed much better than Es in passenger service on routes with stiff grades. However, as a freight model lacking steam generators it was not a possible unless a separate heating car was used or Es were in the consist. EMD corrected the issue with its FP7, released in the late 1940s, built at the same time as the F7. Surprisingly, for a variant model the locomotive sold quite well with nearly 400 examples manufactured (including those constructed by General Motors Diesel of London, Ontario). Today, numerous FP7s remain preserved and in operation around the country.
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Road Name History:
The PRR was the largest railroad by traffic and revenue in the U.S. for the first half of the twentieth century. Over the years, it acquired, merged with or owned part of at least 800 other rail lines and companies. At the end of 1925, it operated 10,515 miles of rail line; in the 1920s, it carried nearly three times the traffic as other railroads of comparable length, such as the Union Pacific or Atchison, Topeka & Santa Fe railroads. Its only formidable rival was the New York Central (NYC), which carried around three-quarters of PRR's ton-miles.
At one time, the PRR was the largest publicly traded corporation in the world, with a budget larger than that of the U.S. government and a workforce of about 250,000 people. The corporation still holds the record for the longest continuous dividend history: it paid out annual dividends to shareholders for more than 100 years in a row.
In 1968, PRR merged with rival NYC to form the Penn Central Transportation Company, which filed for bankruptcy within two years. The viable parts were transferred in 1976 to Conrail, which was itself broken up in 1999, with 58 percent of the system going to the Norfolk Southern Railway (NS), including nearly all of the former PRR. Amtrak received the electrified segment east of Harrisburg.
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In early 2014, Model Power ceased its business operations. Its extensive portfolio of intellectual property and physical assets are now exclusively produced, marketed, sold, and distributed by MRC (Model Power, MetalTrain and Mantua) and by Daron (Postage Stamp Airplanes and Airliner Collection).
Item created by: gdm on 2018-02-13 10:23:39. Last edited by gdm on 2018-02-13 10:24:48
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