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WAGR V class : ウィキペディア英語版 | WAGR V class
The WAGR V class was the last class of steam locomotive to enter service with the Western Australian Government Railways (WAGR). The class was part of the post war regeneration plan for the WAGR, intended for the heavy coal traffic between the Collie coal fields and Perth. ==Engineering Background== Twenty four locomotives were ordered in 1951 from Beyer Peacock in Manchester. The locomotives were built under subcontract by Robert Stephenson & Hawthorn Ltd at their Darlington works. The locomotives entered service between April 1955 and November 1956 〔Rail Heritage WA Website (V Class subpage ) Accessed 16 April 2011〕 The locomotive was of a modern design with a high superheat, a large combustion chamber and a thermic syphon in the firebox. Roller bearing were used on all the locomotive and tender wheels. When introduced the V class was the largest rigid wheelbase locomotive on the WAGR system, exceeded only by the Australian Standard Garratt, and the heaviest government owned steam locomotive in Australia. The locomotive was designed to have as many parts as possible interchangeable with the W class.
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