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History: The EMD GP18 was not a revolutionary locomotive. It evolved from the proven and successful GP7 and GP9 locomotive designs, keeping the best of their features and adding important new options of its own. Increased power was one of the main selling points, with the GP18 getting 1800 horsepower out of its non-turbocharged 567D1 diesel, compared to only 1500 horsepower for the GP7 and 1750 horsepower for the GP9. The most innovative design feature of the GP 18 was not introduced until near the end of production: The GP18 was the first EMD locomotive to be offered with a low short hood, a big improvement in cab visibility for the crew.
While these innovations were important, versatility was what made this locomotive successful. GP18s could handle a full range of duties, from switching to transfer runs to mainline work, passenger or freight. Among the many options offered were steam generators for passenger service, winterization hatches for improved cold-weather performance, dynamic brakes for maximum braking on steep grades, and a variety of fuel tank sizes to suit operating conditions and axle loadings.
EMD produced 388 GP18s from 1959 until 1963, with American railroads purchasing 350 units and Mexican railroads ordering 38. Replaced by the turbo-charged GP20 and the uniquely styled GP30, the GP18 was not as innovative as the locomotives produced before or after it. But when you measure the GP18 by the standards of versatility and usefulness, this was one of EMD?s most successful locomotive designs.
Electro-Motive Diesel traces its roots to the Electro-Motive Engineering Corporation, a designer and marketer of gasoline-electric self-propelled rail cars founded in 1922 and later renamed Electro-Motive Company (EMC). In 1930, General Motors purchased Electro-Motive Company and the Winton Engine Co., combining the two to form its Electro-Motive Division (EMD) in 1941.
In 2005, GM sold EMD to Greenbriar Equity Group and Berkshire Partners, which formed Electro-Motive Diesel to facilitate the purchase. In 2010, Progress Rail Services completed the purchase of Electro-Motive Diesel from Greenbriar, Berkshire, and others.
EMD's headquarters, engineering facilities and parts manufacturing operations are based in McCook, Illinois, while its final locomotive assembly line is located in Muncie, Indiana. EMD also operates a traction motor maintenance, rebuild and overhaul facility in San Luis Potosí, Mexico.
As of 2008, EMD employed approximately 3,260 people, and in 2010 it held approximately 30 percent of the market for diesel-electric locomotives in North America.
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Item created by: gdm on 2018-06-09 19:36:52
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