0-6-0

First known tank engine version
First known tank engine version
First use	1850s
Evolved to	0-6-2, 0-6-4
Benefits	Total engine mass available for adhesive weight
Drawbacks	Instability at speed

Equivalent classifications
Equivalent classifications
UIC class	C
French class	030
Turkish class	33
Swiss class	3/3
Russian class	0-3-0

0-6-0 (Six-coupled)
	Hackworth's Royal George of 1827
UIC class
Equivalent classifications
UIC class	C
French class	030
Turkish class	33
Swiss class	3/3
Russian class	0-3-0
First use
First known tank engine version
First use	1850s
Evolved to	0-6-2, 0-6-4
Benefits	Total engine mass available for adhesive weight
Drawbacks	Instability at speed
First use
First known tender engine version
First use	1817
Country	Scotland
Locomotive	The Duke
Railway	Kilmarnock and Troon Railway
Designer	George Stephenson
Builder	Walker Iron Works
Evolved from	0-4-0
Benefits	Less axle loading than four-wheel locomotives
Drawbacks	Broke the tracks due to its weight
First use
First known "True type" version
First use	1827
Country	United Kingdom
Locomotive	Royal George
Railway	Stockton and Darlington Railway
Designer	Timothy Hackworth
Builder	Timothy Hackworth
Evolved from	0-4-0
Evolved to	2-6-0, 0-6-2, 0-6-4
Benefits	Total engine mass available for adhesive weight
Drawbacks	Instability at speed

0-6-0 is the Whyte notation designation for steam locomotives with a wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles, and no trailing wheels. Historically, this was the most common wheel arrangement used on both tender and tank locomotives in versions with both inside and outside cylinders.

In the United Kingdom, the Whyte notation of wheel arrangement was also often used for the classification of electric and diesel-electric locomotives with side-rod coupled driving wheels. Under the UIC classification, popular in Europe, this wheel arrangement is written as C if the wheels are coupled with rods or gears, or Co if they are independently driven, the latter usually being electric and diesel-electric locomotives.