4-8-2+2-8-4

A 4-8-2+2-8-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-8-2 locomotives operating back to back, with a boiler and cab articulated between them.

Other equivalent classifications are:

UIC classification: 2D1+1D2 (also known as German classification and Italian classification)

French classification: 241+142

Turkish classification: 47+47

Swiss classification: 4/7+4/7

The Australian Standard Garratt and South African Railways GL class Garratt locomotives are examples of the type.