MIG wrote:
have a vague idea Victoria itself isn't cleared
for 23m stock, but might have got that wrong.

How did GatEx manage then?

The old ones were Mark 2s. Not sure about their Junipers, but again,
probably different clearance from Mark 3s.

19.66m for the 460s, according to "electric-railways.co.uk", whoever
they a
http://electric-railways.co.uk/L2_DC...Class_460.html

I know the 170s don't go to Victoria (because it's underground,
irrespective of coach length constraints), but how much - if any - of
the route from London Bridge to Brighton are they cleared for?

--
John Band
john at johnband dot org
www.johnband.org