"Recliner" wrote

Surely there were large numbers of 1959 and 1962 stock trains in service
by then? Admittedly, their design was pretty similar to the 1938s, so
they may not have seen much newer.
They did, and the 1959 stock were the first 'silver' trains - but they did
not run on the lines used by the previous poster at the time.

Peter

"Peter Masson" wrote in message

"Recliner" wrote

Surely there were large numbers of 1959 and 1962 stock trains in
service by then? Admittedly, their design was pretty similar to the
1938s, so they may not have seen much newer.
They did, and the 1959 stock were the first 'silver' trains - but
they did not run on the lines used by the previous poster at the time.

Weren't there silver R stock trains before then?

John B wrote:
On Jul 22, 4:00 pm, Paul Corfield wrote:
An internal (LU) notice has stated that the first passenger service
journey of the new Victoria Line 09 stock took place last night just
before midnight from Seven Sisters down to Brixton. More passenger
service trips will build up over the coming months using trains 01 and
02.

I thought people might be interested to know.

So the 09s entered passenger service before the 378s? Didn't see that
one coming...


And without Boris trumpeting them as meeting a manifesto commitment, to
boot. If they'd only had aircon...

Tom

On 23 July, 09:48, John B wrote:
So the 09s entered passenger service before the 378s? Didn't see that
one coming...

Yes... but worth noting they're only testing one 2009ts train on an
occasional basis for now, whereas the 378s have already completed
testing and are in series production.

When they finally sort whatever the current hold up is there will
immediately be several 378s running on a full time basis, and
hopefully they'll be quickly followed by the rest of the fleet. The
same won't be true of the 2009ts for another 6 months.

U

"Tom Barry" wrote

And without Boris trumpeting them as meeting a manifesto commitment, to
boot. If they'd only had aircon...

Among the problems with aircon on the tube lines is - where do you dump the
heat? Presumably on, say, the Central or Piccadilly lines it would be
possible to devise a system whereby the heat was retained on the train until
it got to the open air, and then dumped, but Victoria Line trains stay
underground all the time they are in service. No use cooling the trains if
you just heat the tunnels even more.

Peter

"Peter Masson" wrote in message

"Tom Barry" wrote

And without Boris trumpeting them as meeting a manifesto commitment,
to boot. If they'd only had aircon...

Among the problems with aircon on the tube lines is - where do you
dump the heat? Presumably on, say, the Central or Piccadilly lines it
would be possible to devise a system whereby the heat was retained on
the train until it got to the open air, and then dumped, but Victoria
Line trains stay underground all the time they are in service. No use
cooling the trains if you just heat the tunnels even more.

That's why the plan is to cool the stations, not the trains, but of
course there's less to see with that approach.

On 23 July, 16:17, "Recliner" wrote:
"Peter Masson" wrote in message



"Tom Barry" wrote

And without Boris trumpeting them as meeting a manifesto commitment,
to boot. *If they'd only had aircon...

Among the problems with aircon on the tube lines is - where do you
dump the heat? Presumably on, say, the Central or Piccadilly lines it
would be possible to devise a system whereby the heat was retained on
the train until it got to the open air, and then dumped, but Victoria
Line trains stay underground all the time they are in service. No use
cooling the trains if you just heat the tunnels even more.

That's why the plan is to cool the stations, not the trains, but of
course there's less to see with that approach.

And the regenerative braking on the new 2009 stock will also mean less
heat released into the stations and tunnels in the first place.

On Jul 23, 2:54*am, "Recliner" wrote:
"1506" wrote in message







On Jul 22, 1:08 pm, Stephen Furley wrote:
On 22/7/09 16:00, in article
,
"Paul

Corfield" wrote:
An internal (LU) notice has stated that the first passenger service
journey of the new Victoria Line 09 stock took place last night just
before midnight from Seven Sisters down to Brixton. More passenger
service trips will build up over the coming months using trains 01
and
02.

I thought people might be interested to know.

--
Paul Corfield
via Google

The Victoria Line stock was the first new stock that I remember being
introduced. It seemed incredibly modern at the time compared to the
CO and R stocks which I was used to on the Circle and District when
going to the Science Museum, the first journey up into central
London which I made on my own, and the 38 stock which I occasionally
used on the Bakerloo or Northern; these were the only Underground
lines which I'd used at that time. It's odd to think that it's
reached the end of its life, and due to be replaced.

That is my memory of the London Subway also. *In the Early 1960s the
tubes were, by and large served by 1938, and earlier stock. *The sub-
surface lines were CO and R stock served. *The Victoria Line trains
and the A stock on the Met. seemed SO modern.

Surely there were large numbers of 1959 and 1962 stock trains in service
by then? *Admittedly, their design was pretty similar to the 1938s, so
they may not have seen much newer.

You are correct. They were certainly on the Piccadilly Line. In
those days I was a young teenager. My travels took me on mainly the
Bakerloo.

On Thu, 23 Jul 2009, Peter Masson wrote:

"Tom Barry" wrote

If they'd only had aircon...

Among the problems with aircon on the tube lines is - where do you dump
the heat? Presumably on, say, the Central or Piccadilly lines it would
be possible to devise a system whereby the heat was retained on the
train until it got to the open air, and then dumped, but Victoria Line
trains stay underground all the time they are in service. No use cooling
the trains if you just heat the tunnels even more.

You'd have to install a fake open air. By which i mean some point on the
line where trains could stop and offload their heat - some apparatus they
sit inside which blows a gale of super-cooled damp air (or even water)
into their heat exchangers, and sucks the warmed exhaust out again. You
wouldn't want to do it in passenger service, but if you could build ten
minutes into the schedule at one end, it could be done during turn-around.
Admittedly, this would involve changing the Victoria operating principle
quite a bit, but at least it's technically feasible. Ish.

tom

--
Oh, and sometimes in order to survive you have to drink the irradiated
water from an old toilet. -- Jon, on Fallout

"Tom Anderson" wrote in message
rth.li
On Thu, 23 Jul 2009, Peter Masson wrote:

"Tom Barry" wrote

If they'd only had aircon...

Among the problems with aircon on the tube lines is - where do you
dump the heat? Presumably on, say, the Central or Piccadilly lines
it would be possible to devise a system whereby the heat was
retained on the train until it got to the open air, and then dumped,
but Victoria Line trains stay underground all the time they are in
service. No use cooling the trains if you just heat the tunnels even
more.

You'd have to install a fake open air. By which i mean some point on
the line where trains could stop and offload their heat - some
apparatus they sit inside which blows a gale of super-cooled damp air
(or even water) into their heat exchangers, and sucks the warmed
exhaust out again. You wouldn't want to do it in passenger service,
but if you could build ten minutes into the schedule at one end, it
could be done during turn-around. Admittedly, this would involve
changing the Victoria operating principle quite a bit, but at least
it's technically feasible. Ish.

I think it makes a lot more sense to just take more heat out of the
stations and maybe the tunnels as well. That means more surface
ventilation fans running (which is think is already happening) and some
sort of additional cooling, such as the plan to use heat exchangers with
the cold ground water being pumped out. That way, the passengers in the
stations benefit as well, and you don't need to complicate the already
cramped trains any more than they are already.