| Posted by ar-ren on October 2, 2012 | |
Why this train has helper(banker) locomotive?
|
Each locomotive is only rated at 2,250 horsepower, so it needs both engines to deliver the power to weight ratio to the reach top speed of 125mph with 8 coaches. Having a driving cab at each end also enables it to turn round in less than 10 minutes without having to be released from a terminus station. These trains were also revolutionary in that their continuous air braking is applied from both power cars simultaneously, rather than from a locomotive at the front applying back down the train, enabling them to brake from 125mph in the same distance as a conventional train did from 100mph. This enabled them to operate at higher speeds without expensive resignalling.
|
| Posted by ar-ren on October 2, 2012 | |
thanks a lot. But I see every passenger train in UK double headed for last one or two years. Looks like one or two years ago new government order were introduced.
|
|