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Class 701 'Aventra' trains for South Western Railway: progress updates

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WWTownEnth

Member
Joined
21 Mar 2014
Messages
697
701001 - In Passenger Service (2 Mar 26)
701002 - In Passenger Service (18 May 26)
701003 - In Passenger Service (27 Jul 26)
701004 - In Passenger Service (10 Jul 26)
701005 - In Passenger Service (27 Aug 25)
701006 - In Passenger Service (6 Mar 26)
701007 - In Passenger Service (24 Feb 26)
701008 - In Passenger Service (31 Mar 26)
701009 - In Passenger Service (17 Oct 25)
701010 - In Passenger Service (22 Dec 25)
701011 - In Passenger Service (26 Feb 26)
701012 - In Passenger Service (21 Jul 25)
701013 - In Passenger Service (28 Jul 25)
701014 - In Passenger Service (9 Jun 26)
701015 - In Passenger Service (7 Aug 26)
701016 - In Passenger Service (4 Jun 26)
701017 - In Passenger Service (25 Nov 24)
701018 - In Passenger Service (6 Jul 25)
701019 - In Passenger Service (18 Apr 26)
701020 - In Passenger Service (8 Oct 25)
701021 - In Passenger Service (15 Sep 25)
701022 - In Passenger Service (9 Feb 26)
701023 - In Passenger Service (7 Apr 26)
701024 - In Passenger Service (29 Jul 26)
701025 - In Passenger Service (24 Jun 25)
701026 - In Passenger Service (3 Nov 25)
701027 - In Passenger Service (29 Jun 26)

701028 - Training duties
701029 - SWR preparing for passenger service
701030 - In Passenger Service (9 Dec 25)
701031 - In Passenger Service (28 Oct 24)
701032 - In Passenger Service (15 May 26)
701033 - In Passenger Service (26 Nov 25)
701034 - In Passenger Service (18 Mar 25)
701035 - In Passenger Service (28 May 25)
701036 - In Passenger Service (7 Mar 24)
701037 - In Passenger Service (9 Jan 24)
701038 - In Passenger Service (5 Feb 26)
701039 - In Passenger Service (10 Jan 24)
701040 - In Passenger Service (15 Jun 26)
701041 - In Passenger Service (17 Jun 25)
701042 - In Passenger Service (21 May 25)
701043 - In Passenger Service (16 Jan 24)
701044 - In Passenger Service (5 Feb 25)
701045 - In Passenger Service (10 Apr 26)
701046 - In Passenger Service (17 Mar 25)
701047 - In Passenger Service (31 Dec 25)
701048 - In Passenger Service (8 Nov 25)
701049 - In Passenger Service (20 Mar 26)
701050 - In Passenger Service (17 Nov 25)
701051 - In Passenger Service (14 Jul 25)
701052 - In Passenger Service (23 Dec 25)
701053 - In Passenger Service (26 Aug 25)
701054 - In Passenger Service (3 Jan 26)
701055 - In Passenger Service (6 May 26)
701056 - In Passenger Service (8 Sep 25)
701057 - In Passenger Service (13 Aug 25)
701058 - In Passenger Service (11 Aug 25)
701059 - In Passenger Service (5 Dec 25)
701060 - In Passenger Service (1 Nov 25)


In Passenger Service: 58/60
Training duties: 1/60 (028 briefly served passengers before training duties)

SWR preparing for passenger service: 1/60


701501 - Stored at Derby Litchurch Lane
701502 - Stored at Derby Litchurch Lane

701503 - SWR preparing for passenger service
701504 - SWR preparing for passenger service

701505 - Stored at Derby Litchurch Lane
701506 - SWR preparing for passenger service

701507 - Stored at Derby Litchurch Lane
701508 - Stored at Derby Litchurch Lane

701509 - SWR preparing for passenger service
701510 - Stored at Derby Litchurch Lane
701511 - Stored at Derby Litchurch Lane

701512 - SWR preparing for passenger service
701513 - SWR preparing for passenger service

701514 - Stored at Derby Litchurch Lane
701515 - SWR preparing for passenger service
701516 - SWR preparing for passenger service
701517 - SWR preparing for passenger service
701518 - SWR preparing for passenger service
701519 - SWR preparing for passenger service
701520 - SWR preparing for passenger service
701521 - SWR preparing for passenger service
701522 - SWR preparing for passenger service
701523 - SWR preparing for passenger service

701524 - Stored at Derby Litchurch Lane
701525 - SWR preparing for passenger service
701526 - SWR preparing for passenger service
701527 - SWR preparing for passenger service
701528 - SWR preparing for passenger service
701529 - SWR preparing for passenger service
701530 - SWR preparing for passenger service


In Passenger Service: 0/30
SWR preparing for passenger service: 21/30
Stored at Derby Litchurch Lane: 9/30
And that brings us to 58 in passenger service with one left on training duties and one at some stage of commissioning. Nearly there now on the ten cars!
 
Last edited:

Peter Sarf

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As I typed the post I KNEW someone would be along to say that. It’s one of the most over repeated phrases on the forum (nothing against you :)) and it’s an infuriating one purely because it’s not always true, and I also don’t believe it’s always the case that it‘s run short or cancel. Especially not with the apparent surplus of stock they have…

However, perhaps I’ll wait to pass judgement. They may be good and run them always in pairs, we’ll see.
No offence taken. The long units vs two short units equation/debate crops up often. I think we will never be sure which is best. No failures is best of course.

Otherwise it really depends on having enough spare stock so that it does not matter either way. Whether a whole long unit drops out or a short unit has to go out to couple with a short unit that has lost its misbehaving partner.

Only in-balance I can see is if a train comprising two short units can carry on its way having dropped its mis-behaving half in a siding (how close a siding is I wonder) and carries on before a substitute unit reaches the service to couple up. Would a whole unit instead get shunted into a siding. How quickly would a whole unit pick up the previous whole units diagram.

So two halves would be more resilient mainly BUT also leads to a temptation to rely on that !.
That wasn't the original plan, the original contractual in service dates had a couple of units after few months, then deliveries of both 5car and 10car grew in parallel.

Having all 701/0s first was a much later idea, and from memory (so apologies if wrong) a few 5cars were built before the change of plan.


In their early years, many off peak, evening and weekend workings were single units. In later years single 4car units were rare
Thanks its so long ago now that its unbelievable.
 

Peter Sarf

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I doubt it. It was on test this week, whereas 029 is in a right state at Wimbledon and sounds like an Austin Allegro with dodgy brake pads.
A race to be the odd one out of the sub class.
Does 701029 have wheel flats ? - if so maybe not a big deal if its on the wheel lathe already.

I then wonder how the 701/5s will fare - particularly the ones built as far back as 2019.
 

Goldfish62

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13,120
With at least three pairs of 458s out in service again today (2 x Reading/Weybridge, 1 x Windsor), but with now 58 701s passed for passenger service you have to wonder what's going on. I know somebody posted a while back that there was a backlog of exams to be caught up with, but if anything things seem to be going backwards.
 

yorkie

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Just a gentle reminder that this is a progress updates thread.

Any discussion regarding whether they should have gone for 10-car fixed units, or anything else of a speculative/suggestive nature, is very welcome to be posted in the Speculative Discussion section instead, please

Many thanks :)
 

nctd2306

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Berkshire
With at least three pairs of 458s out in service again today (2 x Reading/Weybridge, 1 x Windsor), but with now 58 701s passed for passenger service you have to wonder what's going on. I know somebody posted a while back that there was a backlog of exams to be caught up with, but if anything things seem to be going backwards.
At least one of those 458 pairs didn't end at Wimbledon Depot or Clapham Yard last night, so it would have been difficult to swap it out, I'm guessing this was likely the case for one or both of the other pairs too.
 

WWTownEnth

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Messages
697
Will be the new diagram introduced tomorrow?
Pretty sure there isn’t one this coming week.

All main line suburban diagrams are now 701. Whilst there are 10 450 diagrams on the windsor side, there will be something of a stay on replacing these with 701s until the current backlog of 701 exams is cleared and/or the 701/5s start entering passenger service.
 

Andy1673

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Messages
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Pretty sure there isn’t one this coming week.

All main line suburban diagrams are now 701. Whilst there are 10 450 diagrams on the windsor side, there will be something of a stay on replacing these with 701s until the current backlog of 701 exams is cleared and/or the 701/5s start entering passenger service.
Thanks.
 

WWTownEnth

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does anyone know how many of the 701s “in passenger service” are actually available for use as of today?
 

nctd2306

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Well I was just coming to say that despite now having 58/60 701/0s supposedly in service, we are still getting all three pairs of remaining 458s in service covering pretty much every day and they've just announced two Windsor side diagrams this evening will be running as single 450s!
does anyone know how many of the 701s “in passenger service” are actually available for use as of today?
This morning, the Windsor side fell apart with 2U12, 2U16 and 2U26 all cancelled and 2U10 running 40 minutes late and skipping all stops bar Staines and Clapham, leaving only two useful trains for a lot of people from Windsor between 06.00 and 08.00 and yep, you guessed it, neither were the 701s they are supposed to be...

That's on top of 2C18 having all stops after Staines bar Clapham pulled as well, despite it being the next train after the cancelled 2U16 for many people. What is happening to all the 701s!?
 

Siemens Staines

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Well I was just coming to say that despite now having 58/60 701/0s supposedly in service, we are still getting all three pairs of remaining 458s in service covering pretty much every day and they've just announced two Windsor side diagrams this evening will be running as single 450s!

This morning, the Windsor side fell apart with 2U12, 2U16 and 2U26 all cancelled and 2U10 running 40 minutes late and skipping all stops bar Staines and Clapham, leaving only two useful trains for a lot of people from Windsor between 06.00 and 08.00 and yep, you guessed it, neither were the 701s they are supposed to be...

That's on top of 2C18 having all stops after Staines bar Clapham pulled as well, despite it being the next train after the cancelled 2U16 for many people. What is happening to all the 701s!?

There is also a pair of 450s on an all day Kingston loop diagram

450054 + 450087
05:30 London Waterloo to London Waterloo due 06:49
06:57 London Waterloo to London Waterloo due 08:21
08:30 London Waterloo to London Waterloo due 09:51
09:57 London Waterloo to London Waterloo due 11:16
11:30 London Waterloo to London Waterloo due 12:49
12:57 London Waterloo to London Waterloo due 14:16
14:30 London Waterloo to London Waterloo due 15:49
15:57 London Waterloo to London Waterloo due 17:16
17:30 London Waterloo to London Waterloo due 18:51
18:57 London Waterloo to London Waterloo due 20:19
20:30 London Waterloo to London Waterloo due 21:49
21:57 London Waterloo to London Waterloo due 23:16
Will be formed of 8 coaches instead of 10.
Last Updated:10/08/2026 06:00

There were 47 701s in passenger service for this mornings peak although 701001 has since appeared to cover one of the two cancelled Windsor diagrams (starting with 1133 Waterloo - Windsor). The other cancelled Windsor diagram was covered by using 701054 instead of it dropping out to Wimbledon between the peaks
 

Nogoohwell

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As I understand it, there is no /5 conversion course underway or agreed. I also dont recall there being any agreed way of working for a /5 or 2x/5 so is the delay to commissioning down to the unit condition, which has been assumed but not specifically mentioned by SWR, or that SWR is yet to agree with unions on the way of working the /5’s?
We know some of the units are old, but Wimbledon have been working on 701’s for over two years so they know what they are doing.
 

davews

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Well I was just coming to say that despite now having 58/60 701/0s supposedly in service, we are still getting all three pairs of remaining 458s in service covering pretty much every day and they've just announced two Windsor side diagrams this evening will be running as single 450s!

This morning, the Windsor side fell apart with 2U12, 2U16 and 2U26 all cancelled and 2U10 running 40 minutes late and skipping all stops bar Staines and Clapham, leaving only two useful trains for a lot of people from Windsor between 06.00 and 08.00 and yep, you guessed it, neither were the 701s they are supposed to be...

That's on top of 2C18 having all stops after Staines bar Clapham pulled as well, despite it being the next train after the cancelled 2U16 for many people. What is happening to all the 701s!?
Something obviously was going wrong this morning. 2C10 was cancelled throughout due to an operational incident (or according to RTT a 'mishap'), later ran empty to Waterloo. I think this was a 701. Then 2C18 (701027) was delayed at Wokingham for 10 minutes due to 'disruptive passengers' and hence skipping stations to catch up. What the problems were on the Windsors I don't know.

 
Last edited:

NSEWonderer

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Nothing wrong with 701s. With the lionshare of metro work mostly falling to them there is more of a probability of problems occuring on a 701 than a 450 and 458 on the metro now, nothing different to even what would occur with 455s.

That to be fair is also expected when you essentially reduce an almost 3 fleet metro service that would share the general service problems, down to mostly 1 single fleet.
 

Feathers44

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I love how everything on here has to be down to “a problem” rather than life happening to be annoying at the moment. Perceptions of conspiracy are normally the result of nothing more than bad luck.

What I was going to say is that I was looking at 015 on my ride in this morning and not seeing anything that stood out as particularly new compared to other units of my recent travels. I doubt anyone even realised it was only a few days into passenger haulage.

A thing that stood out to me recently is that 1 unit (or more?) seems to have sprouted strap hangers in the door areas. I never checked to see which one, which annoys me now, but it was a few weeks ago and they don’t seem to be being rolled out any wider.
 

swr444

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I love how everything on here has to be down to “a problem” rather than life happening to be annoying at the moment. Perceptions of conspiracy are normally the result of nothing more than bad luck.

What I was going to say is that I was looking at 015 on my ride in this morning and not seeing anything that stood out as particularly new compared to other units of my recent travels. I doubt anyone even realised it was only a few days into passenger haulage.

A thing that stood out to me recently is that 1 unit (or more?) seems to have sprouted strap hangers in the door areas. I never checked to see which one, which annoys me now, but it was a few weeks ago and they don’t seem to be being rolled out any wider.
I think that is a mistake; they are placed in the doorway but non where they're actually meant to be.
 
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starting to wonder if there is something seriously wrong with these 701s

Is it too late to get the 455s back?
Incredible over-exaggeration.

The only appropriate time to make this conclusion would be if the majority of units were out of service, which is not even close to the case.
 

Meglos

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There’s an 8x450 vice 701 on 2M09 this morning
2M25 (701013) cancelled from Motspur Park to Chessington South due to a signal failure. Signal failures happen, so not a major issue.
However the next train 2M27 has been downgraded to a single Class 450 - 450014. That's bad planning!
 

WWTownEnth

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Nimbus020

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2M25 (701013) cancelled from Motspur Park to Chessington South due to a signal failure. Signal failures happen, so not a major issue.
However the next train 2M27 has been downgraded to a single Class 450 - 450014. That's bad planning!
Thanks for this: 1D49 (17:23 W'loo to Dorking) probably worth giving a miss this eve!
 

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