The British Rail Class 321 is a class of electric multiple unit (EMU) passenger train built by British Rail Engineering Limited's York Carriage Works in three batches between 1988 and 1991 for Network SouthEast and Regional Railways. The class uses alternating current (AC) overhead electrification. The design was successful and led to the development of the similar Class 320 and Class 322.
Greater Anglia Class 321 at Colchester in 2018
Standard-class interior of an unrefurbished Greater Anglia unit
Class 321/4 in Network SouthEast livery at Rugby
Class 321/9 in West Yorkshire Passenger Transport Executive livery at Doncaster
British Rail Engineering Limited
British Rail Engineering Limited (BREL) was the railway systems engineering subsidiary of British Rail.
The InterCity 125 was formed from Class 43 powercars built at Crewe Works and Mark 3 carriages built at Derby Litchurch Lane Works
Mark 2 carriages were built by BREL's Derby Litchurch Lane Works
Class 58 locomotives were built by BREL's Doncaster Works
An APT-P at Crewe in October 2006