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The British Rail (BR) Class 310 is a slam-door, alternating current (AC) electric multiple unit (EMU) introduced in 1963 as part of the West Coast Main Line electrification project. They were initially classified as Class AM10 units before the introduction of the TOPS classification system. Constructed at BR's Derby Carriage and Wagon Works. They consisted of four carriages - a second class driving trailer, a second class trailer, a second class motor car (with guard's/luggage compartment above which the Stone Faiveley AMBR pantograph was mounted) and a composite (1st and 2nd class) driving trailer. The maximum speed was 75 miles per hour. A glass partition behind the driver's cab enabled passengers in the leading and rear coaches to have an excellent view of the line ahead or behind. They introduced some new features; the first standard multiple units with disc brakes (emergency stop from top speed in 33 seconds over ); the first naturally air-cooled rectifiers (silicon diodes on cups of beryllium oxide), inductors and transformers. Noise was reduced by sprayed asbestos on the floor, body and roof.〔 Original livery was overall Rail Blue, later amended to the familiar blue and grey colour scheme. Initially they were primarily used on local services from London Euston to Bletchley, Milton Keynes, Northampton and Birmingham, and within the West Midlands. They were also the first EMUs to be based on the British Rail Mark 2 bodyshell, which featured semi-integral construction. During the mid-1980s they underwent their heavy C1 refurbishment at Wolverton which included new flat windscreens, a corridor connection between the Motor Vehicle (MBS) and trailer (TSO), and a PA system among other modifications. The main fleet of Class 310/0 units was replaced on the Euston commuter routes with Class 317/1 units which began to enter service on the route in late 1987, however the Class 317 units were then superseded by the new build of Class 321/4 within about 2 years. All Class 310 units that survived into the 21st century were withdrawn between 2001 and 2002. ==Sub-classes== *310/0 - four-car units. All 310s were originally 310/0s. *310/1 - three-car units modified for use in the Midlands. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「British Rail Class 310」の詳細全文を読む スポンサード リンク
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