| British Rail Class 123 |
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| In service |
1963- |
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| Manufacturer |
BR Swindon Works |
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| Number built |
1963 |
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| Formation |
unknown |
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| Operator |
British Rail |
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| Specifications |
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| Car length |
64 ft 11 1/4 in |
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| Width |
9 ft 3 in |
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| Height |
12 ft 9 1/2 in |
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| Maximum speed |
70 mph (112 km/h) |
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| Weight |
41 tons 14 cwt |
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The Class 123 was a design of Diesel Multiple Unit built for British Rail in 1963. They were built by British Rail at Swindon Works, and designed like all Swindon units as inter-city sets. Ten of the four-car sets were built and introduced in 1963. The units bear a visible similarity to the British Rail Class 309, however there is no 'relation' here as the two types were built by different manufacturers for different markets.
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