0-2-2-0
Locomotive wheel arrangement
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Stirling for the Glasgow and South Western Railway in 1855.[2] The design was not successful and the locomotives were withdrawn by 1867.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.
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Steam locomotive wheel arrangements (Whyte notation)
- 0-3-0 (monorail)
Duplex engine types
Fairlie, Meyer
and Garratt types
Mallet types
Triplex and other Multiplex types
Engerth types
