The British Railways BR Standard Class 9F 2-10-0 is a class of steam locomotive designed for British Railways by Robert Riddles. The Class 9F were the last in a series of standardised locomotive classes designed for British Railways during the 1950s, and were intended for use on fast, heavy freight trains over long distances. It was one of the most the most powerful locomotive types ever constructed in Britain, and successfully performed its intended duties. From time to time in the 1950s, the class worked passenger trains with great success, indicating the versatility of the design, sometime considered to represent the ultimate in British steam development. Several variants were constructed for experimentation purposes, in an effort to reduce costs and maintenance, although these met with varying degrees of success. The total number built was 251, with production being shared between Swindon and Crewe Works with the last, 92220 Evening Star, constituting the final steam locomotive to be built by British Railways in 1960. Withdrawals began in 1964, with the final locomotives removed from service in 1967. Several examples have survived into the preservation era in varying states of repair, including Evening Star.
Quick Facts BR Standard Class 9F, Type and origin ...
BR Standard Class 9F [1] |
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Preserved 92212 on the Mid Hants Railway |
Type and origin |
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Power type | Steam |
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Designer | Robert Riddles |
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Builder | Designed at BR Brighton Works, constructed at BR Crewe and Swindon Works |
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Build date | 1951–1954 |
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Total produced | 251 |
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Specifications |
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Configuration:
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• Whyte | 2-10-0 |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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Leading dia. | 3 ft 4 in (1.03 m) |
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Driver dia. | 5 ft (1.5 m) |
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Length | 66 ft 2 in ( m) |
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Total weight | 139 tons 4 cwt (141.48 tonnes) |
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Fuel type | coal |
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Fuel capacity | 7 tons (7.11 tonnes) |
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Water cap. | 5,000 imp. gal (22,700 litres) (with BR? tender) |
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Firebox: | |
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• Grate area | 40.2 ft² (3.734sq m) |
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Boiler pressure | 250 lbf/in² (11.97 kPa) |
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Cylinders | 2 |
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Cylinder size | 20 in × 28 in (505mm × 710mm) |
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