GWR are meant to introduce 769s on the North Downs Line at some point in the future. The distance from Aldershot South Junction to North Camp is 1 mile 17 chains. The distance from Shalford Junction to Shalford is 58 chains.
Given these units can't change power source on the move, from a technical point of view how feasible is it to 'coast' from the junction at line speed to North Camp or Shalford and start the diesel engines at those stations.
What would be the reason not to do it if it is technically feasible? Is there some loss of breaking capability
There have been some planned instances of trains coasting through possessions in the past - eg at Biggleswade for an ECML possession some time ago - see https://www.railforums.co.uk/thread...insbury-park-1st-jan-2013.77113/#post-1315414. There are also neutral sections on electrified lines. Is this different?
Secondly, ignoring the ORR issues on extending third rail, could third rail be put down on these stretches of route by just 'laying it down' and connecting it to the existing installation at relatively low cost or would it still require a lot of development work and planning?
In the same manner, could an electric locomotive with the signals set for a clear route, coast from Acton Wells Junction to Acton East Junction?
Given these units can't change power source on the move, from a technical point of view how feasible is it to 'coast' from the junction at line speed to North Camp or Shalford and start the diesel engines at those stations.
What would be the reason not to do it if it is technically feasible? Is there some loss of breaking capability
There have been some planned instances of trains coasting through possessions in the past - eg at Biggleswade for an ECML possession some time ago - see https://www.railforums.co.uk/thread...insbury-park-1st-jan-2013.77113/#post-1315414. There are also neutral sections on electrified lines. Is this different?
Secondly, ignoring the ORR issues on extending third rail, could third rail be put down on these stretches of route by just 'laying it down' and connecting it to the existing installation at relatively low cost or would it still require a lot of development work and planning?
In the same manner, could an electric locomotive with the signals set for a clear route, coast from Acton Wells Junction to Acton East Junction?