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The Class 172 is a British diesel multiple-unit (DMU) built by Bombardier Transportation at the Derby factory for use on inner-suburban passenger services in the cities of London and Birmingham for London Overground, Chiltern Railways and London Midland. The Class 172 is of the Turbostar model, similar to the Class 168, Class 170 and Class 171. ==Technical details and variants == There are four sub-classes: *Class 172/0 - two-car, non-gangway train sets with London Overground for use on the Gospel Oak to Barking Line. *Class 172/1 - two-car, non-gangway train sets with Chiltern Railways for use on the Chiltern Main Line. *Class 172/2 - two-car, gangway train sets with London Midland for use on the Snow Hill Lines. *Class 172/3 - three-car, gangway train sets with London Midland for use on the Snow Hill Lines. The 172/0s and 172/1s resemble the existing ''Turbostar'' trains in not having end gangways. These trains have a maximum speed of . The Class 172/2s and 172/3s used by London Midland resemble the Class 375, Class 377 and Class 379, Class 387 ''Electrostars'' by having end gangways to allow access between units.〔(【引用サイトリンク】 publisher=Published Railways Illustrated Issue March 2011 )〕 These trains have a maximum speed of .〔(Class 172 Technical Data )〕 The Class 172s feature BSI couplers which allow them to work in multiple with units and most other units with the same coupler. 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 172」の詳細全文を読む スポンサード リンク
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