"Boltar" wrote in message
om...

I guess that begs the question of why A stock was given a profile that
they knew
would not fit in some of the sub surface tunnels. After all , the
underground was
well and truly integrated in the 60s so it wasn't because the met line was
still
a seperate competing railway, and London Transport had no way of knowing
where
the trains might be needed in 20 or 30 years. Seems a strange design
decision to
make to me.

By that token one could then also equally argue why did they give the D78
stock the profile that it has, knowing that it will not fit around the west
side of the Circle Line, requiring C69/77 stock to be used on District line
Wimbleware services.

Truth is, the A60/62 stock was built for the Metropolitan main line
(Aldgate - Amersham/Watford/Uxbridge) and for no other purpose and was
designed accordingly, in the same way as the D78 stock was designed for the
Upminster - Ealing Broadway/Richmond/Wimbledon routes. It was only a later
decision to use some spare A60/62 stock on the ELL.

The idea of common stock is only really coming about with the replacements
for A/C/D stock. We shall see just how appropriate it is to have stock
capable of high-density use on the Circle and low-density use on the Met
main line in years to come. Perhaps we will then be arguing about how
unsuitable the stock is on one or other of the lines because it was not
purpose-built for the line in question?