British Rail Class 321
|British Rail Class 321|
Class 321 unit no. 321404 at Euston railway station.
|Number built||117 trainsets|
|Formation||4 cars per trainset|
|Car length||19.95 m (65.5 ft)|
|Width||2.82 m (9.3 ft)|
|Height||3.78 m (12.4 ft)|
|Maximum speed||100 mph (161 km/h)|
|Weight||Total - 137.9 tonnes|
|Power output||1,328hp (996kW)|
|Voltage||25 kV 50 Hz AC overhead|
|Gauge||Standard gauge: 1,435 mm (4 ft 8½ in)|
The British Rail Class 321 alternating current (AC) electric multiple units (EMU) were built by BREL York in three batches from 1986-1989. The design was very successful and led to the development of the similar Class 320 and Class 322 units for use by Strathclyde PTE and Stansted Express (now used by First ScotRail) respectively. The bodyshell design was also used for construction of the Class 456 direct current (DC) units. The Class 321s were nicknamed 'Dusty Bins', due to the class number sharing the same name as the game show 3-2-1. (This name has also been given to the diesel multiple unit (DMU) Class 153 no. 153321 for the same reason).
Past operations [change]
Class 321s were originally built for the Bedford services. However in 1990, they started being used on Great Eastern Main Line services to Southend Victoria, Braintree and Clacton, to replace the class 302 and 305 EMUs, many of which were approaching 50 years old. Some 321s (many of the 3214s) were sent to work inter-regional services for Silverlink, and then briefly for London Midland, primarily on Euston to Northampton/Milton Keynes/Birmingham services.
Current operations [change]
London Midland have now stopped using class 321s on the majority of their services, however a 321 can occasionally be seen working the St Albans Abbey service from Watford Junction, but now days it is more likely to be a class 313 EMU, built originally for the Moorgate Suburban Electrification.
On the Great Eastern Main Line, class 321s primarily work services to Southend Victoria, Southminster and Braintree. From time to time, they can also be found working the Romford to Upminster, and Clacton services. However, this is rare, and class 315s and 360s respectively are the main rolling stock used for these 2 services.
- Fox, Peter; Hall, Peter & Pritchard, Robert (2007). British Railways Locomotives & Coaching Stock 2007. Platform 5, Sheffield. ISBN 978 1902 336558.