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Author Topic: IETs into passenger service from 16 Oct 2017 and subsequent performance issues  (Read 32576 times)
welshman
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« Reply #315 on: January 19, 2018, 07:36:13 am »

I'm not sure that there are floor sensors.  Isn't there an overhead sensor just above the door?   I tested and it seemed to me that arm-waving had the effect of opening the door.
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Thatcham Crossing
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« Reply #316 on: January 19, 2018, 08:37:41 am »

Other fora suggesting there is going to be some sort of IET journey time record attempt between PAD and RDG this morning, the 1045 to Swansea being the train in question. Apparently 20 mins is the target and the sets involved are 800013 and 800021.

Only what I have read elsewhere so don't shoot the messenger etc.....worth watching on RTT etc though to see what actually happens.
« Last Edit: January 19, 2018, 09:03:40 am by Thatcham Crossing » Logged
a-driver
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« Reply #317 on: January 19, 2018, 09:05:22 am »

Be interesting to see if they hold it back a minute to ensure the HEx has time to clear airport junction then it’s a 10 minute gap. The train in front being the 1035 to Paignton
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bobm
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« Reply #318 on: January 19, 2018, 09:33:22 am »

the 1045 to Swansea being the train in question.

That should shake the orange juice up in the Pullman then....  Grin
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GBM
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« Reply #319 on: January 19, 2018, 09:37:34 am »

Other fora suggesting there is going to be some sort of IET journey time record attempt between PAD and RDG this morning,
Does this mean it/they would be drawing more power from the wires for that burst of energy?  Or am I just being too simplistic.  Only a limited amount of juice to be shared around surely.  Don't want to turn my PC and monitor off fearing a power surge!  Cheesy Cheesy
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IndustryInsider
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« Reply #320 on: January 19, 2018, 10:19:03 am »

I'm not sure that there are floor sensors.  Isn't there an overhead sensor just above the door?   I tested and it seemed to me that arm-waving had the effect of opening the door.

Could be - not button operated though which has been the norm for new fleets recently.
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patch38
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« Reply #321 on: January 19, 2018, 10:48:52 am »

Be interesting to see if they hold it back a minute to ensure the HEx has time to clear airport junction then it’s a 10 minute gap. The train in front being the 1035 to Paignton

Actually left 1/2 minute early if RTT is to be believed
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Thatcham Crossing
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« Reply #322 on: January 19, 2018, 11:39:38 am »

Quote
Other fora suggesting there is going to be some sort of IET journey time record attempt between PAD and RDG this morning

Unconfirmed at 21 mins. Seems this was to show what can be achieved within permitted line speeds.

It's going to feature in the next series of the Paddington "fly-on-the-wall" documentary, apparently.
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ray951
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« Reply #323 on: January 19, 2018, 11:42:10 am »

It's going to feature in the next series of the Paddington "fly-on-the-wall" documentary, apparently.
When I was at Reading a couple of weeks ago they were recording a Reading 'fly on the wall' documentary for Channel 5, so it could be used for that.
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Rob on the hill
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« Reply #324 on: January 19, 2018, 12:06:06 pm »

From RTT, unfortunately it was 12 late by Swindon!
http://www.realtimetrains.co.uk/train/C55335/2018/01/19/advanced
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eightf48544
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« Reply #325 on: January 19, 2018, 12:19:29 pm »

Heard a rumour from fairly reliable source that one of the problems with the 5 car units is coupling two sets together.

Due to the streamlined nose the driver loses sight of the coupler on the set he's approaching so has to guided with hand signals.

The problem with auto couplers is they have to be given a fairly hard bang to couple but hard enough  to cause damage  or too soft not to couple properly.

Maybe they should fit a camara in the nose like a reversing camera on  cars with lines showing distance from the other unit.

Apparently that's why the 387s have the a white light on the right front level with the coupler to assist coupling.
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Rob on the hill
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« Reply #326 on: January 19, 2018, 02:51:10 pm »

Heard a rumour from fairly reliable source that one of the problems with the 5 car units is coupling two sets together.

If that is correct then there would seem to be problems with both coupling and uncoupling, issues which Hitachi will surely need to resolve asap.
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Tim
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« Reply #327 on: January 19, 2018, 04:44:25 pm »


The problem with auto couplers is they have to be given a fairly hard bang to couple but hard enough  to cause damage  or too soft not to couple properly.


I assume that the speed of these trains is electronically controlled.  If the drivers can't judge that reliably, then can't there be a setting on the console that gets it right every time?   
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TaplowGreen
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« Reply #328 on: January 19, 2018, 04:54:16 pm »

Heard a rumour from fairly reliable source that one of the problems with the 5 car units is coupling two sets together.

If that is correct then there would seem to be problems with both coupling and uncoupling, issues which Hitachi will surely need to resolve asap.

"Can the units couple together" Seems a pretty basic detail for GWR to have ascertained during/after testing and before signoff acceptance into service?


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paul7755
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« Reply #329 on: January 20, 2018, 02:45:35 pm »

Heard a rumour from fairly reliable source that one of the problems with the 5 car units is coupling two sets together.

Due to the streamlined nose the driver loses sight of the coupler on the set he's approaching so has to guided with hand signals.

The problem with auto couplers is they have to be given a fairly hard bang to couple but hard enough  to cause damage  or too soft not to couple properly.

Maybe they should fit a camara in the nose like a reversing camera on  cars with lines showing distance from the other unit.

Apparently that's why the 387s have the a white light on the right front level with the coupler to assist coupling.
The Dellner/Scharfenberg pattern coupler widely used in the older Electrostar and Desiro fleets (and on 387s and 800s) doesn’t normally require a ‘fairly hard bang’ to make it work.  The coupling action is hardly noticeable in the stationary portion.

I think the forward facing white light on more recent electrostar variants was reported to be for track illumination for the forward facing CCTV.
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