4-6-2 - Wikipedia
2021-9-2 · Overview. The introduction of the 4-6-2 design in 1901 has been described as 'a veritable milestone in locomotive progress'. On many railways worldwide, Pacific steam locomotives provided the motive power for express passenger trains throughout much of the early to mid-20th century, before either being superseded by larger types in the late 1940s and 1950s, or replaced by electric or diesel ...
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