On Apr 2, 9:29 am, Mr Thant
wrote:
On 2 Apr, 09:08, Boltar wrote:

How far could District line trains head down the heathrow branch of
the piccadilly line before they're out of gauge? Do they ever go a
short way down any more to use the test track for example?

Not far beyond Northfields apparently:http://tinyurl.com/2zl65b

Oh , some bridges have been shrunk. That seems a strange thing to do ,
you'd have thought they'd have kept them at surface stock clearance
just in case. Unless rebuilding them to tube stock gauge was so much
cheaper. Can't see why it would have been though.

B2003