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Article: Beyond 286K: the leap from 263K cars to 286K was (and still is) challenging. Is the industry ready for 315K? Test data gathered at TTCI may help answer that question.(Total Time Count Indicator)
- Article from:
- Railway Age
- Article date:
- August 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 Simmons-Boardman Publishing Corporation. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Of the roughly 1.3 million freight cars in service today on North American freight railroads, there are only 3,026 cars classified as capable of a gross rail load of 315,000 pounds (39-ton axle loads). Most, if not all, were constructed in the late 1960s and early 1970s and probably aren't being loaded to 315K. They require extra-heavy-duty 125-ton trucks, 38-inch diameter wheels, and larger Class G (7X12) roller bearings. Among them are a fleet of Union Pacific potash cars, and a Detroit Edison coal fleet that originally operated in southern Ohio on Penn Central.
Why haven't 315K cars found widespread use, like their lighter (but not by much) 286K cousins? Poor ...
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