On Sat, 19 Apr 2008, Mike Bristow wrote:

In article ,
Peter Smyth wrote:
It sounds like an April Fools joke but apparently TfL are considering
it.
http://tinyurl.com/5augle

I'm not sure why you think it might be a april fools joke: both the '95 and
'96 stock have AC traction packages.

Presumably if this were to go ahead the line would have to be closed for
an extended period.

Change the traction package on a unit, and put it back in service. Don't
see why that would require closing the line. It might not be possible
to couple a DC unit and an AC unit in a single train, but they can
certainly share the same track and power rails.

I think Peter thought, as i did, that this meant converting the power
supply to AC. Possibly by somehow stringing up cables in the tunnels.
Which does sound like it could take a while.

tom

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