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- The British Rail Class 91 is a high-speed electric locomotive, which produces power of 4,830 kW (6,480 hp); it was ordered as a component of the East Coast Main Line modernisation and electrification programme of the late 1980s. The Class 91s were given the auxiliary name of InterCity 225 to indicate their envisaged top speed of 225 km/h (140 mph); they were also referred to as Electras by British Rail during their development and throughout the electrification of the East Coast Main Line. The other end of the InterCity 225 train set is formed of a Mark 4 Driving Van Trailer, built with a similar body shell to the Class 91 locomotives but with only one driving cab. The locomotive body shells are of all-steel construction. Unusually, the motors are body mounted and drive bogie-mounted gearboxes via cardan shafts; this reduces the unsprung mass and hence track wear at high speeds. The locomotive also features an underslung transformer, therefore the body is relatively empty compared to contemporary electric locomotives. Much of the engineering specification for the locomotive was derived from the research and operational experience of the APT-P. (en)
- La Class 91 est une série de 31 locomotives électriques britanniques de 6 090 CV commandées par British Rail pour le programme de modernisation et d'électrification de la East Coast Main Line à la fin des années 1980. (fr)
- 英铁91型电力机车配置6300马力（4700千瓦），'时速可达到225公里（140英里）。1980年代后期，英国铁路东海岸干线（ECML ：East Coast Main Line ）计划采用该型机车作为“城际快车225”的动力车。“城际快车225”的一端为91型机车，另一端为类似外形的拖车，司机可以在任何一端控制机车（DVT单端驾驶技术，driving van trailer）。该型车不同一般的设计：驱动电机安装在车厢底部，通过万向节驱动转向架上的变速箱，变压器装在车轴弹簧之上，因此车厢空间相对其他同时代机车较大。大多数这些设计都是来自“先进客车”第三阶段（APT-P）的研究成果 (zh)
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- 31 (xsd:nonNegativeInteger)
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- Route availability 7 (en)
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- London North Eastern Railway Class 91 at (en)
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- British Rail Class 91 (en)
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- max (en)
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- La Class 91 est une série de 31 locomotives électriques britanniques de 6 090 CV commandées par British Rail pour le programme de modernisation et d'électrification de la East Coast Main Line à la fin des années 1980. (fr)
- 英铁91型电力机车配置6300马力（4700千瓦），'时速可达到225公里（140英里）。1980年代后期，英国铁路东海岸干线（ECML ：East Coast Main Line ）计划采用该型机车作为“城际快车225”的动力车。“城际快车225”的一端为91型机车，另一端为类似外形的拖车，司机可以在任何一端控制机车（DVT单端驾驶技术，driving van trailer）。该型车不同一般的设计：驱动电机安装在车厢底部，通过万向节驱动转向架上的变速箱，变压器装在车轴弹簧之上，因此车厢空间相对其他同时代机车较大。大多数这些设计都是来自“先进客车”第三阶段（APT-P）的研究成果 (zh)
- The British Rail Class 91 is a high-speed electric locomotive, which produces power of 4,830 kW (6,480 hp); it was ordered as a component of the East Coast Main Line modernisation and electrification programme of the late 1980s. The Class 91s were given the auxiliary name of InterCity 225 to indicate their envisaged top speed of 225 km/h (140 mph); they were also referred to as Electras by British Rail during their development and throughout the electrification of the East Coast Main Line. The other end of the InterCity 225 train set is formed of a Mark 4 Driving Van Trailer, built with a similar body shell to the Class 91 locomotives but with only one driving cab. The locomotive body shells are of all-steel construction. Unusually, the motors are body mounted and drive bogie-mounted gearb (en)
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- British Rail Class 91 (en)
- Class 91 (fr)
- 英国铁路91型电力机车 (zh)
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- Electra (en)
- British Rail Class 91 (en)
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