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[email protected] August 12th 10 01:04 PM

LU A stock over NR routes
 
Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?

B2003


David Hansen August 12th 10 01:11 PM

LU A stock over NR routes
 
On Thu, 12 Aug 2010 13:04:47 +0000 (UTC) someone who may be
d wrote this:-

Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Presumably it arrived by rail, so that with a will there should be a
way of taking it away by rail. Perhaps lines have been closed since
the 1960s though.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54

MIG August 12th 10 01:24 PM

LU A stock over NR routes
 
On 12 Aug, 14:11, David Hansen
wrote:
On Thu, 12 Aug 2010 13:04:47 +0000 (UTC) someone who may be
wrote this:-

Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Presumably it arrived by rail, so that with a will there should be a
way of taking it away by rail. Perhaps lines have been closed since
the 1960s though.

--
* David Hansen, Edinburgh
*I will *always* explain revoked encryption keys, unless RIP prevents me
*http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54


Where does new stock get delivered to now, anyway?

In the distant past it was always delivered to West Ruislip for
commissioning, but I've been that way a few times, and it certainly
isn't full of 2009 stock or S stock.

RPM August 12th 10 01:28 PM

LU A stock over NR routes
 
On Aug 12, 2:24*pm, MIG wrote:
On 12 Aug, 14:11, David Hansen
wrote:





On Thu, 12 Aug 2010 13:04:47 +0000 (UTC) someone who may be
wrote this:-


Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Presumably it arrived by rail, so that with a will there should be a
way of taking it away by rail. Perhaps lines have been closed since
the 1960s though.


--
* David Hansen, Edinburgh
*I will *always* explain revoked encryption keys, unless RIP prevents me
*http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54


Where does new stock get delivered to now, anyway?

In the distant past it was always delivered to West Ruislip for
commissioning, but I've been that way a few times, and it certainly
isn't full of 2009 stock or S stock.- Hide quoted text -

- Show quoted text -


The S stock is being delivered to Neasden, by rail via Aylesbury &
Princes Risborough.

The A stock was certainly moved by rail when it was refurbished so
there must be some routes cleared for it.

RPM

Andy Elms August 12th 10 03:01 PM

LU A stock over NR routes
 
On 12 Aug, 14:04, wrote:
Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Ah, but, in kinematic envelope terms the vehicles are relatively short
(16m according to wackypædia) so the throw on curves would not be as
substantial as an equiv. 20m carriage.

Need to sit down and do the geometry to work out how much, mind

AE


[email protected] August 12th 10 03:13 PM

LU A stock over NR routes
 
On Thu, 12 Aug 2010 08:01:14 -0700 (PDT)
Andy Elms wrote:
On 12 Aug, 14:04, wrote:
Now that the S stock trains are slowly going to be introduced into servic=

e how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today)=

so
will they be able to move it by rail over some specially cleared routes o=

r
will it have to go by road?


Ah, but, in kinematic envelope terms the vehicles are relatively short
(16m according to wackyp=E6dia) so the throw on curves would not be as
substantial as an equiv. 20m carriage.


I always thought 2.85 (ish) was the absolute maximum width no matter what
the length of the carraiges. Is this not the case?

B2003


Basil Jet[_2_] August 12th 10 05:14 PM

LU A stock over NR routes
 
On 2010\08\12 16:13, d wrote:
On Thu, 12 Aug 2010 08:01:14 -0700 (PDT)
Andy wrote:
On 12 Aug, 14:04, wrote:
Now that the S stock trains are slowly going to be introduced into servic=

e how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today)=

so
will they be able to move it by rail over some specially cleared routes o=

r
will it have to go by road?


Ah, but, in kinematic envelope terms the vehicles are relatively short
(16m according to wackyp=E6dia) so the throw on curves would not be as
substantial as an equiv. 20m carriage.


I always thought 2.85 (ish) was the absolute maximum width no matter what
the length of the carraiges. Is this not the case?


You don't mind denting them so much on the way out.

Charles Ellson August 12th 10 09:40 PM

LU A stock over NR routes
 
On Thu, 12 Aug 2010 06:28:48 -0700 (PDT), RPM
wrote:

On Aug 12, 2:24*pm, MIG wrote:
On 12 Aug, 14:11, David Hansen
wrote:





On Thu, 12 Aug 2010 13:04:47 +0000 (UTC) someone who may be
wrote this:-


Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Presumably it arrived by rail, so that with a will there should be a
way of taking it away by rail. Perhaps lines have been closed since
the 1960s though.


--
* David Hansen, Edinburgh
*I will *always* explain revoked encryption keys, unless RIP prevents me
*http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54


Where does new stock get delivered to now, anyway?

In the distant past it was always delivered to West Ruislip for
commissioning, but I've been that way a few times, and it certainly
isn't full of 2009 stock or S stock.- Hide quoted text -

- Show quoted text -


The S stock is being delivered to Neasden, by rail via Aylesbury &
Princes Risborough.

The A stock was certainly moved by rail when it was refurbished so
there must be some routes cleared for it.

IIRC it got as far as Rosyth. ITYF the practical collision risk for
any infrastructure is mainly involved with using crossovers within
platformed areas or allowing the stock to rattle around enough to
reach the sideways limits of the suspension while passing through
platforms, these being the matters addressed in the movement
instructions for CO/CP stock from Neasden to Quainton Road.

Charles Ellson August 12th 10 09:47 PM

LU A stock over NR routes
 
On Thu, 12 Aug 2010 18:14:11 +0100, Basil Jet
wrote:

On 2010\08\12 16:13, d wrote:
On Thu, 12 Aug 2010 08:01:14 -0700 (PDT)
Andy wrote:
On 12 Aug, 14:04, wrote:
Now that the S stock trains are slowly going to be introduced into servic=
e how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today)=
so
will they be able to move it by rail over some specially cleared routes o=
r
will it have to go by road?

Ah, but, in kinematic envelope terms the vehicles are relatively short
(16m according to wackyp=E6dia) so the throw on curves would not be as
substantial as an equiv. 20m carriage.


That also depends on the position of the main pin on the bogie and the
corresponding pivot point on the carriage rather than just the vehicle
length. IIRC modern carriages (Mk3 etc.) are in any case tapered to
compensate for their length and thus have a smaller swept path on the
_outside_ of a smallest radius curve than A stock.


I always thought 2.85 (ish) was the absolute maximum width no matter what
the length of the carraiges. Is this not the case?


You don't mind denting them so much on the way out.



Jack Taylor August 12th 10 10:53 PM

LU A stock over NR routes
 
Charles Ellson wrote:
On Thu, 12 Aug 2010 06:28:48 -0700 (PDT), RPM
wrote:

The S stock is being delivered to Neasden, by rail via Aylesbury &
Princes Risborough.

The A stock was certainly moved by rail when it was refurbished so
there must be some routes cleared for it.

IIRC it got as far as Rosyth.


The A stock was refurbished at Derby in the early 1990s. Eight-car sets were
moved (generally Class 37 hauled) from Neasden to Aylesbury, run round, then
via Wycombe and the Greenford loop to Didcot and forward via Oxford,
refurbished sets returning via the same route. I don't think that any trains
went via Bicester due to capacity issues on the (then) single line and
crewing issues. The move from Neasden usually started on Saturdays,
mid-morning. Somewhere I've got some pictures of unrefurbished A stock
sitting in platform 2 at Aylesbury.

Unfortunately the S stock deliveries are not so easily photographable,
occurring late at night, arriving at Neasden at around 01:00 on Friday
mornings (so far - assuming that the diagram doesn't change when deliveries
pick up).



Andy August 13th 10 01:39 PM

LU A stock over NR routes
 
On 12 Aug, 14:24, MIG wrote:
On 12 Aug, 14:11, David Hansen
wrote:





On Thu, 12 Aug 2010 13:04:47 +0000 (UTC) someone who may be
wrote this:-


Now that the S stock trains are slowly going to be introduced into service how
will the A stock go to scrap? Its apparently 10cm wider than the maximum
network rail loading gauge (according to an article I read in Rail today) so
will they be able to move it by rail over some specially cleared routes or
will it have to go by road?


Presumably it arrived by rail, so that with a will there should be a
way of taking it away by rail. Perhaps lines have been closed since
the 1960s though.


--
* David Hansen, Edinburgh
*I will *always* explain revoked encryption keys, unless RIP prevents me
*http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54


Where does new stock get delivered to now, anyway?

In the distant past it was always delivered to West Ruislip for
commissioning, but I've been that way a few times, and it certainly
isn't full of 2009 stock or S stock.


2009 stock is delivered by road to Northumberland Park, as it isn't
cleared for passage on the Piccadilly and onto the Victoria line via
the crossovers from Finsbury Park.

The S-stock is delivered directly to Neasden for commissioning.

Roland Perry August 13th 10 06:34 PM

LU A stock over NR routes
 
In message
, at
06:39:17 on Fri, 13 Aug 2010, Andy remarked:
The S-stock is delivered directly to Neasden for commissioning.


By rail?
--
Roland Perry

Andy August 13th 10 06:54 PM

LU A stock over NR routes
 
On Aug 13, 7:34*pm, Roland Perry wrote:
In message
, at
06:39:17 on Fri, 13 Aug 2010, Andy remarked:

The S-stock is delivered directly to Neasden for commissioning.


By rail?


Yes, as mentioned by RPM.

Chris Read August 13th 10 08:30 PM

LU A stock over NR routes
 
Digressing somewhat....

I'm guessing that when the A stock finally bows out, there will be
enthusiast interest in a farewell tour. But can the A stock venture onto any
non-Met metals? For example, do they 'fit' east of Aldgate on the District,
if the doors are kept closed to avoid short platform issues? Otherwise, it
will be a farewell wholly over familiar territory, which would be
appropriate but not very novel.*

Do the London Transport Museum have plans to preserve an A stock unit, or at
least a driving car?

Chris

* But still more interesting than any 1967 stock farewell tour, which I
guess would be restricted to Vic metals?




Andy August 13th 10 08:48 PM

LU A stock over NR routes
 
On Aug 13, 9:30*pm, "Chris Read" wrote:
Digressing somewhat....

I'm guessing that when the A stock finally bows out, there will be
enthusiast interest in a farewell tour. But can the A stock venture onto any
non-Met metals? For example, do they 'fit' east of Aldgate on the District,
if the doors are kept closed to avoid short platform issues? Otherwise, it
will be a farewell wholly over familiar territory, which would be
appropriate but not very novel.*


East of Aldgate, they used to fit at least as far as the St. Marys
curve onto the ELL and they can also go to Edgware Road in passenger
service. They also used to be cleared from Rayners Lane to Acton and
maybe even along the District to High Street Kensington and onto
Edgware Road, but I'm not sure if this route is still available.

Do the London Transport Museum have plans to preserve an A stock unit, or at
least a driving car?

Chris

* But still more interesting than any 1967 stock farewell tour, which I
guess would be restricted to Vic metals?


The 1967 stock has run one tour using the connections to/from the
Piccadilly line at Finsbury Park. I don't know if such a move would
still be possible.

[email protected] August 17th 10 08:50 AM

LU A stock over NR routes
 
On Fri, 13 Aug 2010 06:39:17 -0700 (PDT)
Andy wrote:
2009 stock is delivered by road to Northumberland Park, as it isn't
cleared for passage on the Piccadilly and onto the Victoria line via
the crossovers from Finsbury Park.


I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?

B2003


Andy August 17th 10 10:25 AM

LU A stock over NR routes
 
On 17 Aug, 09:50, wrote:
On Fri, 13 Aug 2010 06:39:17 -0700 (PDT)

Andy wrote:
2009 stock is delivered by road to Northumberland Park, as it isn't
cleared for passage on the Piccadilly and onto the Victoria line via
the crossovers from Finsbury Park.


I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.

[email protected] August 17th 10 11:34 AM

LU A stock over NR routes
 
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)
Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very long
cars so I wouldn't have thought the overhang on the 2009 could be any greater
than those. *shrug*

B2003



Andy August 17th 10 01:38 PM

LU A stock over NR routes
 
On 17 Aug, 12:34, wrote:
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)

Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very long
cars so I wouldn't have thought the overhang on the 2009 could be any greater
than those. *shrug*


Yes, but the '73 stock is narrower than both the '67 and '09 stock,
the overhand at the corners depends on both the length, the width and
the positions of the bogies on the cars.

[email protected] August 17th 10 01:54 PM

LU A stock over NR routes
 
On Tue, 17 Aug 2010 06:38:33 -0700 (PDT)
Andy wrote:
Yes, but the '73 stock is narrower than both the '67 and '09 stock,
the overhand at the corners depends on both the length, the width and
the positions of the bogies on the cars.


Whatever the reason, to me it seems daft to have built a train to large to
be able to run on any other tube line and can't even be rail hauled to its
depot. And then instead of using the tiny amount of extra space the larger
size has gained they waste it with thick walls and door pillars. Common
sense was in short supply when the 2009 trains were designed IMO.

B2003


Andy August 17th 10 02:16 PM

LU A stock over NR routes
 
On 17 Aug, 14:54, wrote:
On Tue, 17 Aug 2010 06:38:33 -0700 (PDT)

Andy wrote:
Yes, but the '73 stock is narrower than both the '67 and '09 stock,
the overhand at the corners depends on both the length, the width and
the positions of the bogies on the cars.


Whatever the reason, to me it seems daft to have built a train to large to
be able to run on any other tube line and can't even be rail hauled to its
depot. And then instead of using the tiny amount of extra space the larger
size has gained they waste it with thick walls and door pillars. Common
sense was in short supply when the 2009 trains were designed IMO.


It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on any
other tube line in passenger service, as they are too long (they're
even longer than the '92 stock on the Central). As I said, rail
haulage for delivery via the Piccadilly line would always have been
unlikely due to the lack of capacity for delivery runs, if this wasn't
the case, we might have seen the '67 stock being taken away via this
route, but that is leaving by road. I also don't know if the 2009
stock can be fitted with the necessary tripcocks for running over
conventionally signaled lines, the '67 stock can be.

Of course, without the extra width available, the thick walls and door
pillars would have impinged even more into the passenger space and
there may be a good reason for this bit of the design.

[email protected] August 17th 10 02:58 PM

LU A stock over NR routes
 
On Tue, 17 Aug 2010 07:16:21 -0700 (PDT)
Andy wrote:
It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on any


The reason AFAIK that the victoria line tunnels were built larger was to reduce
air resistence and make the trains more efficient. Presumably at least part
of those savings have now been lost due to the bigger trains.

other tube line in passenger service, as they are too long (they're
even longer than the '92 stock on the Central). As I said, rail
haulage for delivery via the Piccadilly line would always have been
unlikely due to the lack of capacity for delivery runs, if this wasn't
the case, we might have seen the '67 stock being taken away via this
route, but that is leaving by road. I also don't know if the 2009
stock can be fitted with the necessary tripcocks for running over
conventionally signaled lines, the '67 stock can be.


Those arn't showstoppers though. If there ever was cascading they could
reform them into 6 or 7 car trains and I'm sure tripcocks could be fitted
somehow though I suspect by the time the 2009 stock is getting on a bit
tripcocks will be a distant memory anyway.

Theres notalot you can do about a train thats too big to fit in a tunnel
however.

Of course, without the extra width available, the thick walls and door
pillars would have impinged even more into the passenger space and
there may be a good reason for this bit of the design.


Well if there is its certainly eluded me.

B2003


Graeme[_2_] August 17th 10 03:24 PM

LU A stock over NR routes
 
In message
d wrote:

On Tue, 17 Aug 2010 07:16:21 -0700 (PDT)
Andy wrote:
It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on any


The reason AFAIK that the victoria line tunnels were built larger was to
reduce air resistence and make the trains more efficient. Presumably at
least part of those savings have now been lost due to the bigger trains.

[snip]

The Victoria Line booklet[1] published by LT in 1969 states that it was
discovered that opening out the tunnels to 12'6" (from 12') did indeed reduce
the air drag to a degree comparable to that of open-air operation. However
it is emphatic that that was not a design criterium. Minimum tunnel diameter
is actually 12'2" so there will be little losss of efficency in practice.

[1] The Story of the Victoria Line by John R Day. P28

--
Graeme Wall

This address not read, substitute trains for rail
Transport Miscellany at www.greywall.demon.co.uk/rail
Photo galleries at http://graeme-wall.fotopic.net/

MIG August 17th 10 03:40 PM

LU A stock over NR routes
 
On 17 Aug, 16:24, Graeme wrote:
In message
* * * * * wrote:

On Tue, 17 Aug 2010 07:16:21 -0700 (PDT)
Andy wrote:
It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on any


The reason AFAIK that the victoria line tunnels were built larger was to
reduce *air resistence and make the trains more efficient. Presumably at
least part of those savings have now been lost due to the bigger trains..


[snip]

The Victoria Line booklet[1] published by LT in 1969 states that it was
discovered that opening out the tunnels to 12'6" (from 12') did indeed reduce
the air drag to a degree comparable to that of open-air operation. *However
it is emphatic that that was not a design criterium. *Minimum tunnel diameter
is actually 12'2" so there will be little losss of efficency in practice.

[1] The Story of the Victoria Line by John R Day. P28

--
Graeme Wall

This address not read, substitute trains for rail
Transport Miscellany at www.greywall.demon.co.uk/rail
Photo galleries at http://graeme-wall.fotopic.net/


Let's cut to the chase. The 2009 stock is a monumentally crap design
that we are going to be stuck with for another 40 years. I could cry.

Desiros can be built without six inch thick walls and chunky
obstructions everywhere (apart from the armrests). Even the worst LU
stock till now has seats that one can sit in. The design of the 2009
stock is either idiotic or malicious. Words fail me.

Graeme[_2_] August 17th 10 04:27 PM

LU A stock over NR routes
 
In message
MIG wrote:

On 17 Aug, 16:24, Graeme wrote:
In message * * * * *
wrote:

On Tue, 17 Aug 2010 07:16:21 -0700 (PDT) Andy
wrote:
It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on
any


The reason AFAIK that the victoria line tunnels were built larger was
to reduce *air resistence and make the trains more efficient.
Presumably at least part of those savings have now been lost due to the
bigger trains.


[snip]

The Victoria Line booklet[1] published by LT in 1969 states that it was
discovered that opening out the tunnels to 12'6" (from 12') did indeed
reduce the air drag to a degree comparable to that of open-air operation.
*However it is emphatic that that was not a design criterium. *Minimum
tunnel diameter is actually 12'2" so there will be little losss of
efficency in practice.

[1] The Story of the Victoria Line by John R Day. P28

Let's cut to the chase. The 2009 stock is a monumentally crap design that
we are going to be stuck with for another 40 years.


Not used it yet so can't comment.

I could cry.


Have a tissue...


Desiros can be built without six inch thick walls and chunky
obstructions everywhere (apart from the armrests). Even the worst LU
stock till now has seats that one can sit in. The design of the 2009
stock is either idiotic or malicious. Words fail me.


You hide it well.

--
Graeme Wall

This address not read, substitute trains for rail
Transport Miscellany at www.greywall.demon.co.uk/rail
Photo galleries at http://graeme-wall.fotopic.net/

Peter Masson[_2_] August 17th 10 06:04 PM

LU A stock over NR routes
 


wrote in message
...
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)
Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very
long
cars so I wouldn't have thought the overhang on the 2009 could be any
greater
than those. *shrug*

ISTR that when it was delivered the Piccadilly stock didn't fit the
Piccadilly tunnels, and clearances had to be adjusted in a few places.

Peter


Charles Ellson August 17th 10 09:20 PM

LU A stock over NR routes
 
On Tue, 17 Aug 2010 19:04:19 +0100, "Peter Masson"
wrote:



wrote in message
...
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)
Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very
long
cars so I wouldn't have thought the overhang on the 2009 could be any
greater
than those. *shrug*

ISTR that when it was delivered the Piccadilly stock didn't fit the
Piccadilly tunnels, and clearances had to be adjusted in a few places.

IIRC the current Central Line stock also had trouble with some curves
in the vertical plain causing scraped roofs.

Andy August 17th 10 11:35 PM

LU A stock over NR routes
 
On Aug 17, 10:20*pm, Charles Ellson
wrote:
On Tue, 17 Aug 2010 19:04:19 +0100, "Peter Masson"





wrote:

wrote in message
...
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)
Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very
long
cars so I wouldn't have thought the overhang on the 2009 could be any
greater
than those. *shrug*


ISTR that when it was delivered the Piccadilly stock didn't fit the
Piccadilly tunnels, and clearances had to be adjusted in a few places.


IIRC the current Central Line stock also had trouble with some curves
in the vertical plain causing scraped roofs.


And the '92 stock on the Waterloo and City also needed the tunnel
trimming back slightly before it could run.

Charles Ellson August 18th 10 06:53 PM

LU A stock over NR routes
 
On Tue, 17 Aug 2010 16:35:24 -0700 (PDT), Andy
wrote:

On Aug 17, 10:20*pm, Charles Ellson
wrote:
On Tue, 17 Aug 2010 19:04:19 +0100, "Peter Masson"


wrote:

wrote in message
...
On Tue, 17 Aug 2010 03:25:43 -0700 (PDT)
Andy wrote:
I read that 2009 stock is only 4cm wider that 67 stock. Are clearences
really so tight on the piccadilly that they couldn't be moved slowly via
rail over that line?


The cars are also slightly longer than the '67 stock, so the overhang
on the tight curves on the Piccadilly line is probably too much.
That's not to say that they wouldn't squeeze down the Piccadilly
tunnels running slowly, just that the time taken may be too long to
fit around the nightly engineering works.


You might have a point. Though the 73 stock on the piccadilly has very
long
cars so I wouldn't have thought the overhang on the 2009 could be any
greater
than those. *shrug*


ISTR that when it was delivered the Piccadilly stock didn't fit the
Piccadilly tunnels, and clearances had to be adjusted in a few places.


IIRC the current Central Line stock also had trouble with some curves
in the vertical plain causing scraped roofs.


And the '92 stock on the Waterloo and City also needed the tunnel
trimming back slightly before it could run.

Same stock, so possibly I'm thinking of the same occurence although
some of the bits between Bank and Holborn involve some acrobatics
which might have given the same trouble.

John C August 18th 10 08:16 PM

LU A stock over NR routes
 


"MIG" wrote in message
...
On 17 Aug, 16:24, Graeme wrote:
In message
wrote:

On Tue, 17 Aug 2010 07:16:21 -0700 (PDT)
Andy wrote:
It's not daft to build a train to fit the more modern infrastructure
on the Victoria line, the 2009 stock would never be able to run on any


The reason AFAIK that the victoria line tunnels were built larger was
to
reduce air resistence and make the trains more efficient. Presumably
at
least part of those savings have now been lost due to the bigger
trains.


[snip]

The Victoria Line booklet[1] published by LT in 1969 states that it was
discovered that opening out the tunnels to 12'6" (from 12') did indeed
reduce
the air drag to a degree comparable to that of open-air operation.
However
it is emphatic that that was not a design criterium. Minimum tunnel
diameter
is actually 12'2" so there will be little losss of efficency in practice.

[1] The Story of the Victoria Line by John R Day. P28

--
Graeme Wall

This address not read, substitute trains for rail
Transport Miscellany at www.greywall.demon.co.uk/rail
Photo galleries at http://graeme-wall.fotopic.net/


Let's cut to the chase. The 2009 stock is a monumentally crap design
that we are going to be stuck with for another 40 years. I could cry.


It's not that bad. It is still hot and rancid which is the issue that needs
addressing and they need to sort the teething problems. The number of
failures of 67 stock that I have encountered currently stands at zero!
Granted there was the set with the dodgy door recently but it still moved.

John



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