Major manufacturers of diesel locomotives in the United States include [[Electro-Motive Diesel]] and [[General Electric]].
Major manufacturers of diesel locomotives in the United States include [[Electro-Motive Diesel]] and [[General Electric]].
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==Electric locomotives==
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The [[Pennsylvania Railroad]] was a major user of electric locomotives until 1949 but then switched to diesels because they were more economical. In Europe, electric locomotives are still widely used.