wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

I'm sure it was all risk-assessed.


Anna Noyd-Dryver

On 12/03/2018 13:28, Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

I'm sure it was all risk-assessed.


The fabric strap has a steel core I assume.


--
Graeme Wall
This account not read.

On Mon, 12 Mar 2018 13:28:34 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.

I'm sure it was all risk-assessed.

I'm sure these were too

https://www.youtube.com/watch?v=OvyIrsZ7Zhs
https://www.youtube.com/watch?v=8Mu9jT2DUpQ

wrote:
On Mon, 12 Mar 2018 13:28:34 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.



There are four yellow straps lifting the carriage. There's just one lifting
the power units.


Anna Noyd-Dryver

On Mon, 12 Mar 2018 16:51:56 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 13:28:34 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I
don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer
be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.



There are four yellow straps lifting the carriage. There's just one lifting
the power units.

I saw 4 metal chains lifting those. Rather thin looking chains IMO given
those loco sections must be at least a ton each.

On 12/03/2018 16:59, wrote:
On Mon, 12 Mar 2018 16:51:56 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.



There are four yellow straps lifting the carriage. There's just one lifting
the power units.

I saw 4 metal chains lifting those. Rather thin looking chains IMO given
those loco sections must be at least a ton each.


Those chains look to me as if they are rated at a couple of tonnes each,
with the strap being wrapped a few times round the support and hook, for
a load rating of about 4 to 6 tonnes.

The straps used on the carriages are a size I've seen used to lift a 7
tonne narrowboat in a similar configuration.

--
Tciao for Now!

John.

John Williamson wrote:
On 12/03/2018 16:59, wrote:
On Mon, 12 Mar 2018 16:51:56 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.



There are four yellow straps lifting the carriage. There's just one lifting
the power units.

I saw 4 metal chains lifting those. Rather thin looking chains IMO given
those loco sections must be at least a ton each.


Those chains look to me as if they are rated at a couple of tonnes each,
with the strap being wrapped a few times round the support and hook, for
a load rating of about 4 to 6 tonnes.

The straps used on the carriages are a size I've seen used to lift a 7
tonne narrowboat in a similar configuration.


I have no doubt at all that the lift was well within the capabilities of
the equipment used!


Anna Noyd-Dryver

On 12/03/2018 17:46, Anna Noyd-Dryver wrote:

I have no doubt at all that the lift was well within the capabilities of
the equipment used!


Having looked at the pictures, nor have I.

--
Tciao for Now!

John.

wrote:
On Mon, 12 Mar 2018 16:51:56 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 13:28:34 -0000 (UTC)
Anna Noyd-Dryver wrote:
wrote:
On Mon, 12 Mar 2018 11:04:07 +0000
Roland Perry wrote:
In message 2132316179.542480534.571005.recliner.ng-
, at 17:05:04 on Sun, 11 Mar
2018, Recliner remarked:
Additionally the conductor rail has to be removed to allow the passenger
train to run; this is not a problem in itself but it does prevent future
demonstrations of automatic trains (something I'd love to see, but I
don't
know if it's on anyone's agenda) if you remove too much of it.

I didn't know the line had been used for trials of automatic trains? How
would they get them up and down, given that the old depot can no longer
be
used for surface access?

Here's how they took out some of the remaining trains in 2011:

https://www.londonreconnections.com/...ving-the-mail-
rail/

Some quite thin chains given how heavy those locomotives must be.



Surely the single yellow fabric strap is the more concerning part of the
set up?

Depending on what they're made of fabric straps can be exceptionally strong.
Plus I doubt that carraige is as heavy as the locos.



There are four yellow straps lifting the carriage. There's just one lifting
the power units.

I saw 4 metal chains lifting those. Rather thin looking chains IMO given
those loco sections must be at least a ton each.




Look at the second picture in the link above. From the loco, working
upwards: four chains, stretcher bar, single yellow strap,
hook/block-and-tackle, cables.


Anna Noyd-Dryver

On 12/03/2018 17:46, Anna Noyd-Dryver wrote:


Look at the second picture in the link above. From the loco, working
upwards: four chains, stretcher bar, single yellow strap,
hook/block-and-tackle, cables.



I think there may possibly be 2 straps. In any event, a single 75mm
webbing strap can often be rated at more than 10 tonnes


--
Robin
reply-to address is (intended to be) valid