Under the Whyte notation for the classification of steam locomotives, 2-8-2 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, eight powered and coupled driving wheels on four axles, and two trailing wheels on one axle, also usually in a trailing truck. This configuration of steam locomotive is most often referred to as a Mikado, frequently shortened to Mike, but at times it was also referred to on some railroads in the United States of America as the McAdoo Mikado and, during World War II, the MacArthur.

Other equivalent classifications are:

  • UIC classification: 1D1 (also known as German classification and Italian classification)
  • French classification: 141 (also known as Spanish classification)
  • Turkish classification: 46
  • Swiss classification: 4/6

The notation 2-8-2T indicates a tank locomotive of this wheel arrangement on which the water is carried in tanks mounted on the locomotive, rather than in an attached tender.

Read more about 2-8-2:  Overview, Usage

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2-8-2 - Usage - Yugoslavia
... Borsig built 2-8-2s were delivered to the railway of the Kingdom of Yugoslavia in 1930 ... These became the JDZ class 06, of which a few remain in the former Yugoslav nations ...