Under the Whyte notation for the classification of steam locomotives, 0-6-0 represents the wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles, and no trailing wheels. This was the most common wheel arrangement used on both tender and tank locomotives, in versions with both inside and outside cylinders.
In Britain 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.
Other equivalent classifications are:
- UIC classification: C (also known as German classification and Italian classification)
- French classification: 030
- Turkish classification: 33
- Swiss classification: 3/3
- Russian classification: 0-3-0
In the UIC classification popular in Europe, the same arrangement is written as C if the wheels are coupled with rods or gears, or Co if they are independently driven.
Read more about 0-6-0: Usage