Class 175 to GWR

[tfw756rider]

Don't believe so, 5W79 is going to pick up 175006 from Landore to take it to Ely, last one there.

Ah gotcha, thanks You mean 5W97, right?

What is TUDI please?

Trailing Unit Door Isolation switch, locks out the unit or units behind the cab it's activated in. (craigybagel, original post on this page - #2,330 of 22/6/24 )

 

[_toommm_]

Ah gotcha, thanks You mean 5W97, right?

Thank you I assumed it was something similar to LNR's UDS (Unit DeSelect).

 

[BillStampy]

Ah gotcha, thanks You mean 5W97, right?

Ah, my bad!

 

[Express380]

Having just seen the May timetable change on RTT there isn't anything pathed for 175s but almost all IET stoppers west of Exeter are standard class only. This I presume is for easy switchover should 175s enter service?

 

[Tevion539]

What is TUDI please?

TUDI is a system on the 175 which can be isolated in the rear cab of the leading unit. It isolates the doors in the rear unit. It’s not quite SDO. Even if 5 of 6 coaches were accommodated for instance, and TUDI had been isolated, only the front three coaches would arm when releasing doors.

Apologies for this, the forum didn’t load other posts when I tapped on the notification.

 

[3973EXL]

5L46 37901 Barriers 37510

Realtime Trains | 5L46 0402 Derby R.T.C.(Network Rail) to Ely Mlf Papworth Sidings | 27/01/2025

Real-time train running information for 5L46 0402 departure from Derby R.T.C.(Network Rail) to Ely Mlf Papworth Sidings on 27/01/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

7Q84 238 late Ely North J
175009

 

[bspahh]

5L46 37901 Barriers 37510


7Q84 238 late Ely North J
175009

I saw 175009 leave Ely station half an hour ago. It looks like its on its way to Laira

Realtime Trains | 7Q84 1103 Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. | 27/01/2025

Real-time train running information for 7Q84 1103 departure from Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. on 27/01/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

 

[3973EXL]

I saw 175009 leave Ely station half an hour ago. It looks like its on its way to Laira

Yes, as per post #684.

 

[brad465]

They must need some real TLC if they need 17 hours to move between the two, with a top speed of 30mph and several passing stops because of this.

 

[WirralLine]

I worked the 175s for about six months before they left service. The above posts are correct. The doors are fully guard controlled and TUDI was supposedly used when running multiple units on the Marches. Leominster, Ludlow and Abergavenny have shorter platforms and wouldn’t accommodate 6 coaches. The official stance was that if we were to leave the rear unit unlocked, anyone for stations with short platforms were to be made aware by the time they reach the penultimate stop so that they could move to the front unit in a timely manner. However, I never experienced anyone ever using TUDI and rear units were typically just locked out of use. Multiple 175s only typically run when one had been to Chester for service and needed to get to Cardiff in my experience.

It was used daily for Helsby (3car max, Down), if more than 4 coaches also at Newton Le Willows, East Didsbury, Shotton. I've used it many times, fairly straightforward aslong as you're certain you've got everybody into the correct portion for their stop. I never like leaving a unit locked out of use, if its there and burning fuel may aswell make use of it!

 

[SeaKing]

They must need some real TLC if they need 17 hours to move between the two, with a top speed of 30mph and several passing stops because of this.

175 are only cleared on certain routes.

 

[fgwrich]

175 are only cleared on certain routes.

I still find this routing bizarre though, they ran from Landore to Ely directly along the GWML to Acton. They’ve even managed Ilford to Crewe via North London and the WCML*. So why the odd routing half way around the country, loco hauled and unbraked, I don’t know, especially as ROG drove them under their own power from Landore to Ely.

*as seen here on this video I’ve come across on YouTube.

 

[BillStampy]

I still find this routing bizarre though, they ran from Landore to Ely directly along the GWML to Acton. They’ve even managed Ilford to Crewe via North London and the WCML*. So why the odd routing half way around the country, loco hauled and unbraked, I don’t know, especially as ROG drove them under their own power from Landore to Ely.

*as seen here on this video I’ve come across on YouTube.

I'm unsure, the odd routing is part of the lack of speed on the high speed lines it'll have to tackle if it goes the fast way. The overall reason on why they're dragging them is beyond me. All I can think of for the odd routing is that, take it as you wish.

 

[Class15]

It is a bizarre route, but if it went direct it would have to use the West Anglia route or ECML, at 30mph, so then it makes slightly more sense.

Agree though, very strange route.

They’ve even managed Ilford to Crewe via North London and the WCML*.

They most certainly have!

(image shows a Class 175 passing Camden Road Jn on the North London / Primrose Hill lines)

 

[TurboMan]

I still find this routing bizarre though, they ran from Landore to Ely directly along the GWML to Acton. They’ve even managed Ilford to Crewe via North London and the WCML*. So why the odd routing half way around the country, loco hauled and unbraked, I don’t know, especially as ROG drove them under their own power from Landore to Ely.

Don't forget that one of those moves under their own power from Landore to Ely failed for several hours at March, giving ROG a huge bill for delays. As i understand it, they've decided to de-risk the moves to Laira by choosing to loco-haul.

 

[fgwrich]

Don't forget that one of those moves under their own power from Landore to Ely failed for several hours at March, giving ROG a huge bill for delays. As i understand it, they've decided to de-risk the moves to Laira by choosing to loco-haul.

Whilst there is that, there has been plenty more moves from Landore to Ely ran under their own power. It’s only be convenience that the remaining unit(s) at Landore will be towed away tomorrow with the Barriers being in the South West. And ROG’s loco’s aren’t immune to failing either.

Either way, it’s somewhat bizarre.

 

[3973EXL]

Realtime Trains | 7Q46 0604 Landore T.M.D. to Ely Mlf Papworth Sidings | 29/01/2025

Real-time train running information for 7Q46 0604 departure from Landore T.M.D. to Ely Mlf Papworth Sidings on 29/01/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

 

[Harpo]

As i understand it, they've decided to de-risk the moves to Laira by choosing to loco-haul.

Are the units at Ely capable of own-power operation straight from storage or have they had fluids drained down?

 

[BillStampy]

Realtime Trains | 7Q46 0604 Landore T.M.D. to Ely Mlf Papworth Sidings | 29/01/2025

Real-time train running information for 7Q46 0604 departure from Landore T.M.D. to Ely Mlf Papworth Sidings on 29/01/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

Thanks, works perfectly with my schedule for the day to fit it in!

 

[Tevion539]

It was used daily for Helsby (3car max, Down), if more than 4 coaches also at Newton Le Willows, East Didsbury, Shotton. I've used it many times, fairly straightforward aslong as you're certain you've got everybody into the correct portion for their stop. I never like leaving a unit locked out of use, if its there and burning fuel may aswell make use of it!

I never really had the chance to run a multiple unit 175 so never put it to use myself. But you have a point, just most find it easier to contain people to one unit, especially when it’s quiet.

 

[REVUpminster]

Strange. 7Q84 leaves Ely nearly 4 hours late and arrives Laira 90 minutes early. Must be very generous timings. Hopefully someone will post on youtube. No chance me seeing it on Dawlishcams at 4.59 when it was timetable at 5.34

 

[Jacob Porrett]

Strange. 7Q84 leaves Ely nearly 4 hours late and arrives Laira 90 minutes early. Must be very generous timings. Hopefully someone will post on youtube. No chance me seeing it on Dawlishcams at 4.59 when it was timetable at 5.34

I'll post a YouTube video of it later on today if I get around to it. A soggy Telford Central was my location of Choice.

Here is my YouTube video of the 175 drag last night. 37901 with 37510.

 

[REVUpminster]

I'll post a YouTube video of it later on today if I get around to it. A soggy Telford Central was my location of Choice.

Here is my YouTube video of the 175 drag last night. 37901 with 37510.

Thanks for posting. What speed do you think it was going?

 

[Wyrleybart]

Thanks for posting. What speed do you think it was going?

In my opinion in my comfy armchair I think that was slightly more than 30 miles an hour but I admit to not knowing speed / classification of trains these days. Back in the early 1980s class 7 trains were generally limited to 45mph and class 8 to 35mph.

No idea what classification is these days

 

[windjabbers]

So I make that

002, 009 and 114 are at LA
The rest of the units are all at Ely

In addition I think that the following units are not in their orginal formation: -

004/005/006/008/101/109/115

Arrival dates at LA

002 - 26.11.24
114 - 05.12.24
009 - 27.01.25

Welcome corrections and comments

BW David

 

[BillStampy]

Caught 175006 moving off to Ely this morning, that's all of them gone from Wales now. Now we start moving them back west towards Laira!

 

[3973EXL]

04/02 175 move to Laira

Realtime Trains | 7Q84 1103 Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. | 04/02/2025

Real-time train running information for 7Q84 1103 departure from Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. on 04/02/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

 

[REVUpminster]

04/02 175 move to Laira

Realtime Trains | 7Q84 1103 Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. | 04/02/2025

Real-time train running information for 7Q84 1103 departure from Ely Mlf Papworth Sidings to Laira T.& R.S.M.D. on 04/02/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

Surely they could bring two units at a time. Also probably time for a gauging run round the Devon Metro and maybe Cornwall.

 

[Ashley Hill]

Also probably time for a gauging run round the Devon Metro

Apparently this can be done on computer. The yellow things that fly around measure the gauge amongst other things so bridges,heights and clearances on a route are known. Just putting the class 175 measurements in and running the program gives you results without running a train. Well that’s how it was explained to me.

 

[Clarence Yard]

You don’t clear physically any more. You have to get virtual clearance first. You input the specific vehicle class characteristics into the model and compare them with the infrastructure measurements. Comparable clearance, using other classes as a comparator, is not now allowed.

The model usually provides a list of close calls or exceedances, which you then work through with NR, location by location. Once you have done this, you get your Statement of Compatibility for the line concerned (with any speeds or prohibitions listed) and off you can run.

You still need to do physical runs to check signal sighting, passenger/train interface issues, etc.