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2-2-0 is a tautogram (all words start with the same letter). View more tautograms!

Definition of the noun 2-2-0

What does 2-2-0 mean as a name of something?


  1. Under the Whyte notation system, a steam locomotive that has one unpowered leading axle and one powered driving axle.


2-2-0: Under the Whyte notation for the classification of steam locomotives, 2-2-0 represents the wheel arrangement of two leading wheels on one axle, two powered driving wheels on one axle, and no trailing wheels. This configuration, which became very popular during the 1830s, was commonly called the Planet type after the first locomotive, Robert Stephenson's Planet of 1830.

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