Under the Whyte notation for the classification of steam locomotives, 0-2-2-0 represents the wheel arrangement of no leading wheels, four powered but uncoupled driving wheels on two axles, and no trailing wheels. Some authorities place brackets around the duplicated but uncoupled wheels, creating a notation 0-(2-2)-0.
Usage
The first recorded usage of the arrangement was in the G&SWR 99 Class designed by Patrick Stirling for the Glasgow and South Western Railway in 1855. The design was not successful and the locomotives were withdrawn by 1867. It would later be used on the Royal Bavarian State Railways ML 2/2 class of 1906, which were much more numerous and successful.
The Mount Washington Cog Railway has eight 0-2-2-0's and only two are in working order, with three in storage and the remainder on display.
References
- "American Steam Locomotive Wheel Arrangements". Retrieved 13 March 2016.
- ^ Baxter 1984, p. 139.
- Baxter, Bertram (1984). British locomotive catalogue 1825-1923. Vol. 4. Buxton: Moorland Publishing.
| Steam locomotive wheel arrangements (Whyte notation) | |
|---|---|
| Single engine types |
|
| Divided drive and Duplex engine types | |
| Articulated locomotives Fairlie, Meyer and Garratt types | |
| Articulated locomotives Mallet types | |
| Articulated locomotives Triplex and other Multiplex types | |
| Articulated locomotives Engerth types | |
| Geared locomotives | |