From Newsgroup: uk.transport.london

The video name is a bit misleading - the picc train doesn't appear until
4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on
LU stock because thats a hell of a load behind the tube train and the 66
sounds like its being pulled dead.

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From Newsgroup: uk.transport.london

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until 4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on
LU stock because thats a hell of a load behind the tube train and the 66 sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by another
?
IrCOm sure it could happen with the simpler older stocks but donrCOt know if new ones can still do that.
If they are allowed to tow another set then a whole set is likely to weigh fairly similar to the single locomotive and the couplings have to be rated
for that even though such an arrangement would be very rare, might have to allow for hauling such a weight up the inclines such as emerging to the surface near Barons Court or going Westbound from Hammersmith.

Or maybe a broken down set can only rescued by another pushing so coupling strength isnrCOt a factor.

GH
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From Newsgroup: uk.transport.london

On 20 Dec 2025 19:14:49 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until
4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on >> LU stock because thats a hell of a load behind the tube train and the 66
sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by another
?
IrCOm sure it could happen with the simpler older stocks but donrCOt know if >new ones can still do that.
If they are allowed to tow another set then a whole set is likely to weigh >fairly similar to the single locomotive and the couplings have to be rated

Fair point, though a 66 is 130 tonnes plus whatever those barrier vehicles weigh so a bit more than a tube train.

for that even though such an arrangement would be very rare, might have to >allow for hauling such a weight up the inclines such as emerging to the >surface near Barons Court or going Westbound from Hammersmith.

Or maybe a broken down set can only rescued by another pushing so coupling >strength isnrCOt a factor.

I imagine pushing is more common simply because its easier to bring a following train up behind than run one in the wrong direction for a rescue.

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From Newsgroup: uk.transport.london

<boltar@caprica.universe> wrote:

On 20 Dec 2025 19:14:49 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until >>> 4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on >>> LU stock because thats a hell of a load behind the tube train and the 66 >>> sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by another >> ?
IrCOm sure it could happen with the simpler older stocks but donrCOt know if >> new ones can still do that.
If they are allowed to tow another set then a whole set is likely to weigh >> fairly similar to the single locomotive and the couplings have to be rated

Fair point, though a 66 is 130 tonnes plus whatever those barrier vehicles weigh so a bit more than a tube train.

Looking before I posted so as not to make a gaff most sources say a 2024
set weighs in at 155.401 Tonnes ,in service of course they could have the weight of passengers as well and official sources say that 259.719 Tonnes
is what they have decided is a crush load.

GH
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From Newsgroup: uk.transport.london

On 21 Dec 2025 09:26:08 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

On 20 Dec 2025 19:14:49 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until >>>> 4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on >>>> LU stock because thats a hell of a load behind the tube train and the 66 >>>> sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by another >>> ?
IrCOm sure it could happen with the simpler older stocks but donrCOt know if

new ones can still do that.
If they are allowed to tow another set then a whole set is likely to weigh >>> fairly similar to the single locomotive and the couplings have to be rated >>

Fair point, though a 66 is 130 tonnes plus whatever those barrier vehicles >> weigh so a bit more than a tube train.

Looking before I posted so as not to make a gaff most sources say a 2024
set weighs in at 155.401 Tonnes ,in service of course they could have the >weight of passengers as well and official sources say that 259.719 Tonnes
is what they have decided is a crush load.

Would be interesting to see one crush loaded train try and push another.

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From Newsgroup: uk.transport.london


boltar@caprica.universe posted:

On 21 Dec 2025 09:26:08 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

On 20 Dec 2025 19:14:49 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until >>>> 4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers on
LU stock because thats a hell of a load behind the tube train and the 66 >>>> sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by another
?
IrCOm sure it could happen with the simpler older stocks but donrCOt know if

new ones can still do that.
If they are allowed to tow another set then a whole set is likely to weigh
fairly similar to the single locomotive and the couplings have to be rated

Fair point, though a 66 is 130 tonnes plus whatever those barrier vehicles >> weigh so a bit more than a tube train.

Looking before I posted so as not to make a gaff most sources say a 2024 >set weighs in at 155.401 Tonnes ,in service of course they could have the >weight of passengers as well and official sources say that 259.719 Tonnes >is what they have decided is a crush load.

Would be interesting to see one crush loaded train try and push another.

Slower acceleration, limited speed.
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From Newsgroup: uk.transport.london

On Mon, 22 Dec 2025 07:37:25 GMT
Ulf Kutzner <user2991@newsgrouper.org.invalid> gabbled: >boltar@caprica.universe posted:

On 21 Dec 2025 09:26:08 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

On 20 Dec 2025 19:14:49 GMT
Marland <gemehabal@btinternet.co.uk> gabbled:

<boltar@caprica.universe> wrote:

The video name is a bit misleading - the picc train doesn't appear until

4:10.

https://www.youtube.com/watch?v=D8xFXKgQ0T4

Would be interesting to know the strain limit of the inter car couplers >on
LU stock because thats a hell of a load behind the tube train and the 66

sounds like its being pulled dead.

How are broken down trains moved in service ,Can a set be towed by >another
?
IrCOm sure it could happen with the simpler older stocks but donrCOt >know if

new ones can still do that.
If they are allowed to tow another set then a whole set is likely to >weigh
fairly similar to the single locomotive and the couplings have to be >rated

Fair point, though a 66 is 130 tonnes plus whatever those barrier vehicles

weigh so a bit more than a tube train.

Looking before I posted so as not to make a gaff most sources say a 2024 >> >set weighs in at 155.401 Tonnes ,in service of course they could have the >> >weight of passengers as well and official sources say that 259.719 Tonnes >> >is what they have decided is a crush load.

Would be interesting to see one crush loaded train try and push another.

Slower acceleration, limited speed.

The tube has a lot of tight curves and steep inclines. There might not be
any movement at all. The last time I remember it happening was when a central line train broke down near Bank about 10 years back. The following train tried to push it but failed. Can't remember how it was moved in the end.

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