Nick Leverton wrote:
In article
,
D7666 wrote:
On Apr 10, 10:34 am, "Paul Scott"
wrote:

~ The capability to move a short distance without the traction
supply being present;"

Where is Sir Isaac Newton ?

Perhaps the DfT are envisaging some sort of Newton's Cradle scheme for
getting trains out during power failures ? Put a train in at high
speed
at the south end and a corresponding one pops out of the north ...


No - just alter the gradients so that it's low at Blackfriars and St
Pancras, but much higher in the middle.. :-)

Paul