![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/29/WP_Bayerische_ML_2-2.jpg/220px-WP_Bayerische_ML_2-2.jpg)
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.[1] Some authorities place brackets around the duplicated but uncoupled wheels, creating a notation 0-(2-2)-0.[2]
Usage
The first recorded usage of the arrangement was in four locomotives designed by Patrick Stirling for the Glasgow and South Western Railway in 1855[2] The design was not successful and the locomotives were withdrawn by 1867.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.
- ^ a b Baxter 1984, p. 139.
- Baxter, Bertram (1984). British locomotive catalogue 1825-1923. Vol. 4. Buxton: Moorland Publishing.