C! wrote:
Neillw001 wrote:
I've never found them to be as hot as parts
of the District/Circle in high summer.

The problem on the circle line seems to be all the heat coming from
under the seats

Yes, and the fact that none of the windows open. This is crazy! The
only stock with opening windows is the A60 and D78 - the more modern
stock does not (except a small bit of the end-doors).

It seems pure madness to have double-glazing throughout, for example,
on the C69/77 stock (Circle Line etc.) which is PURELY to house the
doors when they are open! More modern stock, e.g. 1992 stock on
Northern Line at least has the doors opening oustide the body, so no
double-glazing needed, but why did they not devise opening windows for
that stock?

I have today found out that on 1973 stock (Piccadilly Line), if one
sits on the VERY end seat, i.e. nearest the driver's bulkhead, a faint
stream of airconditioning breeze can be felt if one sits with one's
head right against the glass! I'll be corrected if I'm wrong, but I
think that this is the ONLY ventillated seat in driving carriages.

Marc.