"Nick Lawford" wrote in message
news:d7e237510223bcf79eba9448f66a7e52.97781@mygate .mailgate.org...
"Jack Taylor" wrote in message



Peter Lawrence wrote:

That must be the reason for going so far from London! Otherwise I
would have thought that, say, Aylesbury - Claydon would involve far
less haulage.

The stock is being built by Bombardier in Derby, so by using Old Dalby
it
can be commissioned whilst on delivery.


Aylesbury to Claydon is also not electrified at all.

While Old Dalby is currently (excuse the pun) NR 25 kV AC and Movias
need LU 660 VDC, the grid feeder substation and switching gear will
already be in place, along with linseside fencing to latest standards
and so on. Its rather simpler to convert an already existing
electrification from one to another sytem even if they are very
different.

Old Dalby will be available for testing full time. Aylesbury to Claydon has
booked trains (binliners), and because of the low speed and long block
section the binliners wouldn't actually leave a lot of time for testing. Old
Dalby also has a depot which was built and used for the Pendolino testing.

Peter