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World’s Largest Steam Locomotive Class – Russian E 0-10-0

The Russian E 0-10-0 class consisted of around 11,000 locomotives, making it the most numerous steam locomotive class ever produced.

The Valdikavkazskaya Railway introduced the E class in 1912. Adopted as a standard freight engine, many variants were constructed, including E, Em, Eu and Er.

Production continued throughout the First World war and all through the Soviet era until 1957. E class locos were built not only in Russia, but examples were imported from other countries including Czechoslovakia, Germany, Sweden, Hungary and Poland.

Total construction for Soviet Railways (SZD) amounted to about 10,700, however, once examples built for industrial use are included, the final production total reaches around 11,000.

A youtube video featuring a Russian Er locomotive in steam:

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