4-6-2+2-6-4

First known tank engine version
First known tank engine version
First use	1927
Country	South Africa
Locomotive	Class GF
Railway	South African Railways
Designer	South African Railways
Builder	Hanomag
Evolved from	2-6-2+2-6-2

Equivalent classifications
Equivalent classifications
UIC class	2C1+1C2
French class	231+132
Turkish class	36+36
Swiss class	3/6+3/6, 6/12 from 1920s
Russian class	2-3-1+1-3-2

4-6-2+2-6-4
	SAR Class GF, the first 4-6-2+2-6-4 Double Pacific
UIC class
Equivalent classifications
UIC class	2C1+1C2
French class	231+132
Turkish class	36+36
Swiss class	3/6+3/6, 6/12 from 1920s
Russian class	2-3-1+1-3-2
First use
First known tank engine version
First use	1927
Country	South Africa
Locomotive	Class GF
Railway	South African Railways
Designer	South African Railways
Builder	Hanomag
Evolved from	2-6-2+2-6-2

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-6-2+2-6-4 is a Garratt or Union Garratt articulated locomotive using a pair of 4-6-2 engine units back to back, with the boiler and cab suspended between them. The 4-6-2 wheel arrangement of each engine unit has four leading wheels on two axles, usually in a leading bogie, six powered and coupled driving wheels on three axles, and two trailing wheels on one axle, usually in a trailing truck.

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