Tom Anderson wrote in message ...
"Your post reminded me to ask the LBL readership (is it really 10,000
strong?) if anyone has heard another noise made by jubilee line trains. I
can only describe the noise as the sound of running water. It's as if
you're the other side of a very thin wall and someone's just flushed the
loo in the next room. The noise seems to travel from one end of the
carriage to the other and yet no one on the carriage bats an eyelid at
this seemingly (super-) natural sound. Has anyone else heard it and do
they know what it is?"

Pressurised air in the brake pipes or tanks moving about?
Sound of the brake pads on rubbing on the discs?
Anything else that can produce a kind of white noise sound really

B2003

Boltar wrote:

Pressurised air in the brake pipes or tanks moving about?
Sound of the brake pads on rubbing on the discs?
Anything else that can produce a kind of white noise sound really

That's a completely different kind of sound to that described in the
subject.
--
Ian Tindale

Ian Tindale wrote in message ...
Boltar wrote:

Pressurised air in the brake pipes or tanks moving about?
Sound of the brake pads on rubbing on the discs?
Anything else that can produce a kind of white noise sound really

That's a completely different kind of sound to that described in the
subject.

The only thing I can think of from my days of driving those trains is
the noise made by the current shoes hitting the rail. For example
over a gap in the current rails, when the shoes hit the next section
of the current rail, you do get a strange sound, which may sound like
it's travelling down the train as each shoe hits the rail.

Can't say I've ever noticed it on any other stock! maybe the 96s have
different traction shoes, or the JLE may use a different type of power
rail?

Sorry, that's the only thing I can think of at the moment!

Ian Tindale wrote in message ...
Boltar wrote:

Pressurised air in the brake pipes or tanks moving about?
Sound of the brake pads on rubbing on the discs?
Anything else that can produce a kind of white noise sound really

That's a completely different kind of sound to that described in the
subject.

Not necessarily , plenty of streams sound just like white noise and so does
water coming out of a tap very fast.

B2003

Boltar wrote:

Ian Tindale wrote in message
...
Boltar wrote:

Pressurised air in the brake pipes or tanks moving about?
Sound of the brake pads on rubbing on the discs?
Anything else that can produce a kind of white noise sound really

That's a completely different kind of sound to that described in the
subject.

Not necessarily , plenty of streams sound just like white noise and so
does water coming out of a tap very fast.

Well, there you are. The running water sound, described in this thread,
sounds like, well, water that is running - trickling - flowing gently from
point a to point b. It's not a torrent, nor a gush, nor does it imply that
the water is in any particular hurry. It's a gentle sound of water on its
way from one part of the train to another, seemingly induced by the motion
of the train itself. As the train starts up and gathers speed away from a
station, you hear the water running past. As the train loses speed to enter
a station, you hear it running back again. It doesn't sound like much
quantity of water either. It just seems to gently make its way from one end
of the train to the other, while more running water comes along, and so on.

--
Ian Tindale

Ian Tindale wrote to uk.transport.london on Mon, 22 Nov 2004:


Well, there you are. The running water sound, described in this thread,
sounds like, well, water that is running - trickling - flowing gently from
point a to point b. It's not a torrent, nor a gush, nor does it imply that
the water is in any particular hurry. It's a gentle sound of water on its
way from one part of the train to another, seemingly induced by the motion
of the train itself. As the train starts up and gathers speed away from a
station, you hear the water running past. As the train loses speed to enter
a station, you hear it running back again. It doesn't sound like much
quantity of water either. It just seems to gently make its way from one end
of the train to the other, while more running water comes along, and so on.

I don't think there was any on the Jubilee line train I took yesterday,
and I did listen! Most disappointing!
--
"Mrs Redboots"
http://www.amsmyth.demon.co.uk/
Website updated 22 November 2004

On Tue, 23 Nov 2004, Mrs Redboots wrote:

I don't think there was any on the Jubilee line train I took yesterday,
and I did listen! Most disappointing!

Presumably, the water's only there after it's been raining - moreover,
after it's been raining heavily while that train's driving around north of
Finchley Road (or wherever it is the Jubilee surfaces). So, next time it's
wet, i'll get down to Baker Street and check it out ...

tom

--
Don't trust the laws of men. Trust the laws of mathematics.