British Rail Class 150

Ranked #218 on the list Best Locomotive class of All Time

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About British Rail Class 150

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The British Rail Class 150 "Sprinter" diesel multiple-unit trains (DMUs) were built by BREL from 1984 to 1987. A total of 137 units were produced in three main subclasses, replacing many of the earlier first-generation "Heritage" DMUs. At the beginning of the 1980s, British Rail (BR) had a large fleet of ageing "Heritage" DMUs built to many different designs in the late 1950s and early 1960s. Some of the more reliable types were retained and refurbished. BR decided to replace many of the non-standard or unreliable types with new second-generation trains, built to modern standards. Two different types were developed; low-cost "Pacers", built using bus parts and intended for short-distance services; and "Sprinters", based on BR's Mark 3 bodyshell design, for use on longer-distance services. In 1984, BREL built two prototype 3-car Class 150/0 units, numbered 150001 and 150002. 150001 was fitted with Cummins engines and Voith hydraulic transmission, and 150002 was fitted with Perkins (Rolls-Royce) engines and Self-Changing Gears mechanical transmission. The design specifications of the prototypes were similar to the later production units, but they were to remain the only Class 150s

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