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British Rail Class 87 : ウィキペディア英語版 | British Rail Class 87
The British Rail Class 87 is a type of electric locomotive built from 1973–75 by British Rail Engineering Limited (BREL). 36 of these locomotives were built to work passenger services over the West Coast Main Line (WCML). They were the flagships of British Rail's electric locomotive fleet until the late 1980s, when the Class 90s started to come on stream. The privatisation of British Rail saw all but one of the fleet transferred to Virgin Trains they continued their duties until the advent of the new Pendolino trains, when they were transferred to other operators or withdrawn. There is only one Class 87 still in use in Britain, and that is 87002, owned by the AC Locomotive Group but is solely used alongside 86101 for the occasional charter train. A large proportion of the fleet have now been exported to Bulgaria. 87002 is currently hired by Serco to work the empty coaching stock of the Caledonian Sleeper services. ==History== A requirement for more electric locomotives came about after the electrification of the WCML was extended from Weaver Junction north of to , and Glasgow. Initially, three Class 86 locomotives were used as test-beds to trial equipment (mainly electrical equipment and suspension) that would be used in the new locomotives; effectively, these locomotives were Class 87s in everything but appearance.〔(【引用サイトリンク】url=http://www.aclocogroup.co.uk/history87.php )〕 The external design of the Class 87 was clearly derived from that of the Class 86; the only major detail differences were two front cab windows on the 87 instead of the three of the 86, and also the lack of headcode indicator boxes; by 1973, visual recognition of train reporting numbers by signallers was no longer necessary. The power and speed of the Class 87 was increased over that of the Class 86. Power output was increased to 5000 hp to deal with the more demanding gradients on the northern half of the WCML such as Shap Fell and Beattock Summit, and the top speed was raised to 110mph (180km/h). The 87s were also fitted with multiple working equipment which enabled locomotives to work with other members of the class (and some Class 86s) while controlled by one driver.〔 In the 1980s, the multiple working system was replaced with a new system based on time-division multiplexing (TDM) allowing 87s to work with other classes of locomotive (including most 86s, 90s and 91s) and most importantly, Driving Van Trailers (DVTs).
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 87」の詳細全文を読む
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