2-4-2+2-4-2

First known tank engine version
First known tank engine version
First use	1943
Country	Brazil
Railway	Leopoldina Railway
Designer	Beyer, Peacock and Company
Builder	Beyer, Peacock and Company
Evolved from	2-4-0+0-4-2

Equivalent classifications
Equivalent classifications
UIC class	1B1+1B1, 1’B1’+1’B1’
French class	121+121
Turkish class	24+24
Swiss class	2/4+2/4, 4/8 from the 1920s
Russian class	1-2-1+1-2-1

2-4-2+2-4-2
UIC class
Equivalent classifications
UIC class	1B1+1B1, 1’B1’+1’B1’
French class	121+121
Turkish class	24+24
Swiss class	2/4+2/4, 4/8 from the 1920s
Russian class	1-2-1+1-2-1
First use
First known tank engine version
First use	1943
Country	Brazil
Railway	Leopoldina Railway
Designer	Beyer, Peacock and Company
Builder	Beyer, Peacock and Company
Evolved from	2-4-0+0-4-2

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 2-4-2+2-4-2 is a Garratt locomotive. The wheel arrangement is effectively two 2-4-2 locomotives operating back to back, with the boiler and cab suspended between the two power units. Each power unit has a single pair of leading wheels in a leading truck, followed by two coupled pairs of driving wheels, with a single pair of trailing wheels in a trailing truck.