> Adrian wrote:

>> thagor2008@googlemail.com gurgled happily, sounding much like they
>> were saying:
>>

>>>> Roger Ford guesses a 200 hp diesel generator will need to be
>>>> included under one of the carriages in each unit. It's not a
>>>> terrible idea but

>>>
>>> Can't see that happening. They'd have to install diesel fuel supplies
>>> and engine maintenance facilities in the depots. Not cheap or perhaps
>>> even practical. Also Thameslink has some steep sections (eg city
>>> thameslink to blackfriars) and I'm wondering if 200hp would be
>>> enough to propel a 140 ton unit up them.

>>
>> The diesel engine wouldn't actually be propelling the train, of
>> course - merely generating enough electrickery to enable the motors
>> to do so. I'm assuming there'd be batteries involved, too,

>
> Those will be the special DfT designed batteries that still allow the
> unit to be lighter than anything previously built of course...