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GWR 1500 Class
The Great Western Railway (GWR) 1500 Class is a class of 0-6-0 pannier tank steam locomotive. Despite being a GWR design, all ten (nos 1500–1509) were built by the Western Region of British Railways in 1949.
==Overview==
Coming from a railway company with a well-developed standardisation policy, the 15xx was a strange design finale. Unlike almost all their forebears, they had outside cylinders, Walschaerts valve gear, and a very short wheelbase of to go round curves of . Above footplate level they were very similar to the 9400 class, and shared the same Standard no.10 boiler. The surprises were below the (very small) footplate, where they resembled the USATC S100 Class that the GWR and other railways had used during the Second World War.
Although a sound design, the class had limited usefulness as they were route-restricted by their high weight and were unsuitable for fast running because of their short wheelbase. Largely confined to empty stock workings at London Paddington station, their lives were short; for example 1509 lasted barely ten years in BR service. Four of the class, 1506 to 1509, were based in Wales, Newport Pill, Ebbw Junction & Cardiff Canton, 1508 was withdrawn from that last shed. Like the 1600 and 9400 classes, their construction now appears to have been of doubtful value.
The onset of dieselisation and the decline in traffic on the railway network consigned the 1500s to scrap long before they were life-expired. However 1501 has enjoyed regular use at the Severn Valley Railway in preservation for far longer than its life in public ownership.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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