British Rail Class 309
The British Rail Class 309 "Clacton Express" electric multiple units (EMUs) were built by British Rail (BR) York Works from 1962-1963. They were initially classified as Class AM9 before the introduction of TOPS. These units were the first express 25 kV alternating current (AC) units to be built by British Rail, and British Rail's first EMUs to be capable of 100 mph.
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British Railways AM9 British Rail Class 309 Clacton Express | |
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![]() Two Class 309 electric multiple units coupled together at London Liverpool Street. One of these is in Network SouthEast livery and the other is in "Jaffa Cake" livery with "Essex Express" branding. | |
In service | 1962-2000 |
Manufacturer | BR York |
Number built | 1962-1963 |
Formation | 2/3/4 cars per trainset |
Operator(s) | British Rail |
Specifications | |
Maximum speed | 100 mph (160 km/h) |
Weight | Total - 99 tons (309/1) Only
Total - 168 tons (309/2) Only Total - 167 tons (309/3) Only |
Braking system(s) | Air (EP/Auto) |
Track gauge | Standard gauge (1,435 mm) |
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The front of a Class 309 train in blue/grey InterCity livery with original 'wrap around' cab windows at London Liverpool Street station
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The front of a Class 309 train in blue/grey InterCity livery with modified front windows at London Liverpool Street station
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