0-4-4-2

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A Swiss narrow gauge 0-4-4-2T locomotive of the RhB in 1908.
A Swiss narrow gauge 0-4-4-2T locomotive of the RhB in 1908.

In Whyte notation for the classification of steam locomotives by wheel arrangement, an 0-4-4-2 is a locomotive that has no leading wheels, two sets of four driving wheels and two trailing wheels.