cnjb8
Established Member
When do they convert from diesel and electric, vice versa?
At the station, do they turn on the diesel engine when the pantograph is on, effectively two power sources? Or do they put the pantograph down before turning the engine on, effectively no power source for a few seconds?
Do they switch mid journey at speed?
At the station, do they turn on the diesel engine when the pantograph is on, effectively two power sources? Or do they put the pantograph down before turning the engine on, effectively no power source for a few seconds?
Do they switch mid journey at speed?