wrote in message
...

2. Fit airconditioning to new lightweight articulated Tube stocks which
have regen brakes and will produce less heat from their motors (hoped
for in the proposed replacement for 1972, 73 and 92 stocks).

About what articulated Tube stock do you speak?

Tfl's 'EVO' proposal for future tube stock, which is out with manufacturers
to get ideas for a prototype. Siemens version of it has reached the stage
of a scale model and has been displayed it at various exhibitions.

There's a page or so about it here, and IIRC it was mentioned in TfL's
underground board papers some time back:

http://www.rail.co/2011/02/06/revolution-on-the-tube/

I'm pretty sure it has been discussed in these newsgroups a few times
already.

Paul S