Yet Another Cycling Forum

Off Topic => The Pub => Topic started by: Jaded on 19 May, 2019, 07:36:03 pm

Title: The Last 125
Post by: Jaded on 19 May, 2019, 07:36:03 pm
Left Paddington today. (on the GWR routes, they will, I understand, be carrying on in other, apparently not so important areas like The North and Scotland)

https://www.bbc.co.uk/news/uk-england-48327739

These trains are wonderful. Dirty and smelly and aged, I'm sure, but that's how we all end up.

I remember seeing my first one, from Arthur's Seat in 1976. An unearthly whistling noise as a set pulled into Waverley. They were stable and reliable, and one of them is very, very dear to my heart. It will be sad when they are not around any more. I hope to see some up North.
Title: Re: The Last 125
Post by: yorkie on 19 May, 2019, 07:51:00 pm
GWR will be retaining 11 (I think) short sets with 4 passenger vehicles instead of 8 or 9 for the Cardiff - Penzance route to operate (reasonably) local stopping services. These have been modified with sliding doors and retention toilets to bring them in line with current and future accessibility standards. The sets retained by Cross Country (and recently obtained for long-term use by ScotRail) have had the same modifications.

LNER will carry on using their unmodified HSTs until they have sufficient Azumas to replace them. East Midlands Trains will likewise keep their unmodified HSTs until a future order for new trains (yet to be announced) has entered service to replace them.
Title: Re: The Last 125
Post by: Kim on 19 May, 2019, 07:56:16 pm
Chiltern have some HSTs as well.  Came as a bit of a surprise when I found myself on one.
Title: Re: The Last 125
Post by: hatler on 19 May, 2019, 08:14:17 pm
What is going to be used on the un-electrified section west of Exeter then?

(Is the route even electrified as far as Exeter ?)

I was on one of these from Paddington to Bodmin on the recent BH weekend.  I had no idea they were about to disappear from that route.
Title: Re: The Last 125
Post by: hatler on 19 May, 2019, 08:15:16 pm
And in Lostwithiel, when I last looked, there was still a chap in a signal box pulling levers attached to rods and wires and stuff.
Title: Re: The Last 125
Post by: Kim on 19 May, 2019, 08:17:01 pm
What is going to be used on the un-electrified section west of Exeter then?

The Class 802 'Moar Diesel Moar Better' variant?
Title: Re: The Last 125
Post by: Martin on 19 May, 2019, 08:26:51 pm
What is going to be used on the un-electrified section west of Exeter then?

800s on reduced power from the diesel engines

I always hated them as they replaced proper loco hauled trains (Deltics, Peaks 50s even humble 47s) on most of the routes. Plus the MKIII standard class seats didn't line up with the windows. And the awful smell from the brakes which were next to the aircon intakes. Still don't miss them the modern DMUs are much better.

Even the idea of naming the front and rear power cars as famous pairs was a non starter dur to their constant failure and needing to be swapped around. What other class of BR loco has had to be completely re-engined?

They were designed on the back of a fag packet during the APT fiasco as a short term solution for non electrified lines and it showed
Title: Re: The Last 125
Post by: yorkie on 19 May, 2019, 08:31:17 pm
Chiltern have some HSTs as well.  Came as a bit of a surprise when I found myself on one.

Almost!  ;) They're Class 67 loco-hauled Mark 3a or 3b coaches with a Driving Van Trailer (DVT) at the London end. Same design coaches as HSTs, but with standard UK 1000V DC electric train supply, rather than the 415V AC three-phase train supply on the HST.

What is going to be used on the un-electrified section west of Exeter then?

(Is the route even electrified as far as Exeter ?)

The wires currently reach Newbury on the Westbury line to Taunton and onwards, and Bristol Parkway and somewhere around Chippenham on the lines via Swindon.
Title: Re: The Last 125
Post by: pcolbeck on 19 May, 2019, 08:34:00 pm
I remember seeing my first one, from Arthur's Seat in 1976. An unearthly whistling noise as a set pulled into Waverley.

That was the Paxman Valenta engine. All of the 125s have had those replaced with a more modern but boring sounding MTU 16V 4000.
Title: Re: The Last 125
Post by: fuaran on 19 May, 2019, 08:37:37 pm
Yes, ScotRail have got a few of them now, seem to be in quite regular service.
Mostly still using the old coaches, with slam doors, though they are working on refurbishing them. They have provided instructions on how to open the doors.
Quite comfortable anyway, and more space than the 170s. Though not sure about the bike spaces, think most of them are in the guards van, so you have to run to one end of the train to get it in or out.
Title: Re: The Last 125
Post by: yorkie on 19 May, 2019, 08:51:24 pm
Though not sure about the bike spaces, think most of them are in the guards van, so you have to run to one end of the train to get it in or out.

The unrefurbished HSTs in use with ScotRail do have the bike spaces in the guards van at one end. At least you've only got to run 4 coaches to get to the other end, in York if an HST comes in the wrong way round we've got 9 coaches to run - through passengers wandering all over the platform as well!

The bike spaces on the refurbished sets are apparently located in the power car baggage compartments (2 spaces at each end) for end-to-end journeys** only, plus 2 spaces in one of the coaches (replacing a toilet*) for intermediate journeys.

* One of the toilets in each coach is being removed as there is no room for the retention tank at that end of the vehicle.

** The power car baggage compartments are not accessible by anyone at all during the journey due to the compartment being part of the fire suppression zone of the adjacent engine compartment. If the fire suppression is activated when people are in there, it will not be very good for their health and long-term prospects!!
Title: Re: The Last 125
Post by: Cudzoziemiec on 19 May, 2019, 08:55:23 pm
(Is the route even electrified as far as Exeter ?)
<Guffaws wildly>
The wires stop at Newbury on that route.
Title: Re: The Last 125
Post by: hatler on 19 May, 2019, 09:19:12 pm
(Is the route even electrified as far as Exeter ?)
<Guffaws wildly>
The wires stop at Newbury on that route.
I own up to having spotted the wires at Paddington, and then fallen asleep / got engrossed in a book and only looked outside when we got to Bodmin, by which point it was dark.
Title: Re: The Last 125
Post by: Jaded on 19 May, 2019, 10:13:48 pm
They run hybrids on the Cheltenham line, and at Swindon, they metamorphose from diesel to electric and back.
Title: Re: The Last 125
Post by: fuaran on 19 May, 2019, 11:33:02 pm
Though not sure about the bike spaces, think most of them are in the guards van, so you have to run to one end of the train to get it in or out.

The unrefurbished HSTs in use with ScotRail do have the bike spaces in the guards van at one end. At least you've only got to run 4 coaches to get to the other end, in York if an HST comes in the wrong way round we've got 9 coaches to run - through passengers wandering all over the platform as well!

The bike spaces on the refurbished sets are apparently located in the power car baggage compartments (2 spaces at each end) for end-to-end journeys** only, plus 2 spaces in one of the coaches (replacing a toilet*) for intermediate journeys.
It is not so useful for intermediate journeys. What if a group of cyclists want to go to Aviemore for example? Seems a bit of a backward step compared to the 170s.
Will ScotRail get fussier about bike reservations? Just now can often get on without booking, so long as there's space to squeeze in.
Title: Re: The Last 125
Post by: FifeingEejit on 20 May, 2019, 07:24:54 am
I remember seeing my first one, from Arthur's Seat in 1976. An unearthly whistling noise as a set pulled into Waverley.

That was the Paxman Valenta engine. All of the 125s have had those replaced with a more modern but boring sounding MTU 16V 4000.

Living on the Fife end of the Tay Bridge the Paxman Valenta Turbo Whistle is sadly missed, the MTU and VP185's engines they were refitted with have nothing on that for pure thrash.

Yes, ScotRail have got a few of them now, seem to be in quite regular service.
Mostly still using the old coaches, with slam doors,

WABTEC were meant to have them all refitted by now, only 2 were done by the deadline
CAF were majorly late with the new Sleeper Carraiges
Hitachi were massivley late with the 385s and had a dodgy drivers windy.

I don't get how these companies can arse up contracts so badly and keep getting the jobs...
OR at least how the planners don't alter the slack to cover for it as it seems you could reliably add a year to any rail contract

Title: Re: The Last 125
Post by: ian on 20 May, 2019, 09:22:58 am
I don't get how these companies can arse up contracts so badly and keep getting the jobs...
OR at least how the planners don't alter the slack to cover for it as it seems you could reliably add a year to any rail contract

Because only so many companies can deliver these contracts. And they don't win them by promising reality.

They may be a bit clunky and occasionally damp smelling, but I confess I prefer them the modern wheeled boxes.
Title: Re: The Last 125
Post by: FifeingEejit on 20 May, 2019, 10:21:17 am
I don't get how these companies can arse up contracts so badly and keep getting the jobs...
OR at least how the planners don't alter the slack to cover for it as it seems you could reliably add a year to any rail contract

Because only so many companies can deliver these contracts. And they don't win them by promising reality.

They may be a bit clunky and occasionally damp smelling, but I confess I prefer them the modern wheeled boxes.

Aye, I knew that  ;D
Title: Re: The Last 125
Post by: Jaded on 17 May, 2021, 03:13:59 pm
Some more being retired.

https://www.bbc.co.uk/news/uk-england-south-yorkshire-57069437
Title: Re: The Last 125
Post by: ravenbait on 17 May, 2021, 03:19:22 pm
Is that the one where the driver's cabin is made out of fibreglass and glued to the front?

Sam
Title: Re: The Last 125
Post by: Jaded on 17 May, 2021, 03:24:25 pm
Yes. I think so.
Title: Re: The Last 125
Post by: pcolbeck on 17 May, 2021, 03:29:31 pm
An amazing bit of British bodging engineering. They were done as a side project to have something until the tilting APT took over. Were only ever meant to be a stop gap back when they were made in the 70s and nearly 50 years later they are only just being retired whereas the super dooper APT never went into production.
Title: Re: The Last 125
Post by: ravenbait on 17 May, 2021, 03:33:34 pm
I had a professional interest in the Stonehaven derailment, so I keep an eye open for information about it. I recently read a moving account from a driver of these trains who said he now has panic attacks going to work, because he feels utterly unprotected, driving at very high speeds with nothing but a fibreglass shell around him.

https://www.pressandjournal.co.uk/fp/news/aberdeenshire/3111928/rail-engineer-calls-for-scotrail-fleet-involved-in-stonehaven-crash-to-be-scrapped/

Sam
Title: Re: The Last 125
Post by: Jaded on 17 May, 2021, 04:05:07 pm
With the size of the forces involved in a collision, there isn't much that could protect. The driver is at the front of a vehicle weighing 460 tonnes and often travelling at over 100mph.

These 125 HST trains have the weight at the ends. the APT was designed with the weight in the middle. I think in modern trains the weight is largely underneath. Where the weight is has been a factor - a weight at the front protects the remainder of the train. At Polmont the train was a push-pull with one driving car, at the front or the rear. When the train hit the cow the driving car was at the rear. It was considered that if the driving cars had been at the front the train may not have derailed.

The carriages on the 125s weren't built with crumple zones. Modern carriages are. However the carriages on a 125 were inherently safer than most of their predecessors, which had multiple doors and concertinaed up in a collision.

The best way to save lives is to engineer crashes and derailments out of the system.

Stonehaven - isn't there doubt over the inspection of drainage system around the track?
Title: Re: The Last 125
Post by: TheLurker on 17 May, 2021, 04:40:51 pm
There are events that really telescope time and this is one of them. Never mind the engine "whistle", what about the stink from the brakes? 
Title: Re: The Last 125
Post by: yorkie on 17 May, 2021, 04:57:33 pm
With the size of the forces involved in a collision, there isn't much that could protect. The driver is at the front of a vehicle weighing 460 tonnes and often travelling at over 100mph.

These 125 HST trains have the weight at the ends. the APT was designed with the weight in the middle. I think in modern trains the weight is largely underneath. Where the weight is has been a factor - a weight at the front protects the remainder of the train. At Polmont the train was a push-pull with one driving car, at the front or the rear. When the train hit the cow the driving car was at the rear. It was considered that if the driving cars had been at the front the train may not have derailed.


At Polmont, the train involved was a Mark 3 Push-Pull set, with a class 47 diesel locomotive pushing (in that direction of travel) and a converted Mark 2 Brake Second Class carriage with a cab bolted to one end as a Driving Trailer. The Driving Trailer was only marginally heavier than a standard carriage and "took off" when it hit the cow - part of the cow got stuck under the front wheels. Those trains were temporarily removed from service while a suitable solution to the problem was found. The eventual solution was an amount of steel ballast under the brake area behind the cab, and a dirty great obstacle deflector under the cab to push stuff out of the way.
Title: Re: The Last 125
Post by: Jaded on 17 May, 2021, 05:12:02 pm
I thought I might have had the terminology not quite right, thanks.

Title: Re: The Last 125
Post by: pcolbeck on 17 May, 2021, 05:13:13 pm
There are events that really telescope time and this is one of them. Never mind the engine "whistle", what about the stink from the brakes?

Oh yes as a frequent York to London user of these for twenty years you soon learnt to not sit where the smell of the brakes seeped into the carriage.
Title: Re: The Last 125
Post by: ravenbait on 17 May, 2021, 05:13:44 pm
Stonehaven - isn't there doubt over the inspection of drainage system around the track?

I think the most I could possibly say is that the area is difficult to access. I don't know what the inspection regime was for the trackside drainage there, nor how the drainage could or did contribute to the incident.

Sam
Title: Re: The Last 125
Post by: yorkie on 17 May, 2021, 05:41:29 pm
There are events that really telescope time and this is one of them. Never mind the engine "whistle", what about the stink from the brakes?

Oh yes as a frequent York to London user of these for twenty years you soon learnt to not sit where the smell of the brakes seeped into the carriage.


Just be grateful that one of the major passenger experience malfunctions was discovered fairly early on in their East Coast Main Line career, in fact on one of the later test runs before entry into service according to my father (who was one of the BR Test and Acceptance Engineers for the Prototype HST and covered the Production Sets entry into service for the ECML).


They discovered that when there was a cross wind and the train was travelling at 125mph, the toilet at the rear of each coach flushed UPWARDS!!!  :jurek: :jurek:  My father's colleague discovered this when he went to the loo somewhere around Newark and returned saying "You'd better come and look at this!!" It was apparently due to the complicated interplay of air pressures under the vehicle! They quickly knocked together an air baffle to direct the air around the effluent exit pipe downwards, tested it and rolled it out across the fleet! Phew!  :P
Title: Re: The Last 125
Post by: yorkie on 17 May, 2021, 05:47:32 pm
Stonehaven - isn't there doubt over the inspection of drainage system around the track?

I think the most I could possibly say is that the area is difficult to access. I don't know what the inspection regime was for the trackside drainage there, nor how the drainage could or did contribute to the incident.

Sam


The Rail Accident Investigation Branch's Interim Report (https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/978504/IR012021_210419_Carmont.pdf) into the Carmont accident makes quite interesting reading, all that information is in there (and more). The full report will be published in due course, but usually takes around 12 to 15 months to produce.
Title: Re: The Last 125
Post by: hatler on 17 May, 2021, 09:04:39 pm
There are events that really telescope time and this is one of them. Never mind the engine "whistle", what about the stink from the brakes?

Oh yes as a frequent York to London user of these for twenty years you soon learnt to not sit where the smell of the brakes seeped into the carriage.


Just be grateful that one of the major passenger experience malfunctions was discovered fairly early on in their East Coast Main Line career, in fact on one of the later test runs before entry into service according to my father (who was one of the BR Test and Acceptance Engineers for the Prototype HST and covered the Production Sets entry into service for the ECML).


They discovered that when there was a cross wind and the train was travelling at 125mph, the toilet at the rear of each coach flushed UPWARDS!!!  :jurek: :jurek:  My father's colleague discovered this when he went to the loo somewhere around Newark and returned saying "You'd better come and look at this!!" It was apparently due to the complicated interplay of air pressures under the vehicle! They quickly knocked together an air baffle to direct the air around the effluent exit pipe downwards, tested it and rolled it out across the fleet! Phew!  :P
I recall Private Eye reporting that problem on in-service sets under the headline "Flying Bananas".

Another limitation (as reported to me by my cousin, who was then some sort of postmaster) was that the access doors for the luggage/mail area, combined with the schedule, meant that it wasn't possible to get all the post in and all the post out before the train had to leave. A major source of irritation for the Royal Mail.
Title: Re: The Last 125
Post by: FifeingEejit on 17 May, 2021, 09:23:24 pm
With the size of the forces involved in a collision, there isn't much that could protect. The driver is at the front of a vehicle weighing 460 tonnes and often travelling at over 100mph.

These 125 HST trains have the weight at the ends. the APT was designed with the weight in the middle. I think in modern trains the weight is largely underneath. Where the weight is has been a factor - a weight at the front protects the remainder of the train. At Polmont the train was a push-pull with one driving car, at the front or the rear. When the train hit the cow the driving car was at the rear. It was considered that if the driving cars had been at the front the train may not have derailed.

The carriages on the 125s weren't built with crumple zones. Modern carriages are. However the carriages on a 125 were inherently safer than most of their predecessors, which had multiple doors and concertinaed up in a collision.

The best way to save lives is to engineer crashes and derailments out of the system.

Stonehaven - isn't there doubt over the inspection of drainage system around the track?

Polmont IIRC is the reason why so much of the Pendolinos driving carriages are taken up with functional stuff, no passengers in leading vehicles over 100mph.
The only diseasel/electric locos I can think of with any pretence of driver protection in an accident are the EE ones with noses.

The RAIBs interim report on Carmont is available on their website
Title: Re: The Last 125
Post by: Cudzoziemiec on 17 May, 2021, 09:37:31 pm
IETs have passengers in leading vehicles.
Title: Re: The Last 125
Post by: TimC on 17 May, 2021, 10:33:38 pm
Notwithstanding their safety limitations, i always enjoyed travelling on HSTs. I was based at Linton-on-Ouse when they first came into service, and the London-York trains transitioned from Deltics with Mk2D/E coaches to the HST with the deliciously smooth Mk3s.

As an aside, it used to give me a perverse thrill when practising stalling in the Jet Provost using the Vale of York mainline as an orientation line feature and the HSTs would (just) overtake us.
Title: Re: The Last 125
Post by: drossall on 17 May, 2021, 11:24:37 pm
They were still being phased in on the East Coast Main Line when I was a student at Leeds, 1978-81. I remember getting caught out. I was so used to trains with proper guards vans that I never thought about it. Headed up to Newcastle to see my then girlfriend (now wife), who was studying there. Turned up at the station to get the train back. It was a 125 and wouldn't take my bike, which I think I had ridden up that weekend.

Well I wasn't abandoning the bike, so I turned up back on the door-step of the mutual friend and fellow-student where I had been staying, begging for an extra night, and missed at least a morning's lectures while I waited for a "proper" train.

But after that I did a fair few trips up and down that line. Even more so when I started work in Hertfordshire and she was still in Newcastle.
Title: Re: The Last 125
Post by: FifeingEejit on 17 May, 2021, 11:28:24 pm
IETs have passengers in leading vehicles.

Sorry that was half the info, the layout of the pendolino leading/trailing carriages was the trade off eventually agreed to along with the significantly better crashworthiness.
I note that in the IET the same amount of buffer is provided to 1st class but not standard
Title: Re: The Last 125
Post by: IanN on 18 May, 2021, 12:07:37 am
Notwithstanding their safety limitations, I always enjoyed travelling on HSTs.

Agreed. Much as I may have preferred double headed 50s back in the 1980's, I have fond memories of getting late trains back to Plymouth about 20 years ago. The train would be mostly empty, over Dainton, past Totnes and the driver opened it up...


But it's mostly that the more recent cross country and GWR trains are utter w@nk with no leg room, shoulder room, bike room, functioning toilets half the time.. etc

Title: Re: The Last 125
Post by: Mr Larrington on 18 May, 2021, 12:12:44 am
I used to know a chap whose father used to drive them on the Western Region route 'twixt Cornwall and That London.  The old boy claimed they used regularly to open the taps if a representative of The Man wasn’t around, and wind them up to 140+ mph.
Title: Re: The Last 125
Post by: rogerzilla on 18 May, 2021, 07:49:51 am
There were speed limiters fitted to all of them eventually.  The fastest I saw one go was only 127mph (they hit full speed between Swindon and Didcot, as the line is very straight).

FWIW, it was believed in railway circles for 150 years that you couldn't safely propel a train at high speed from the rear.  Push/pull steam units, with a driving cab in an autocoach, were common but were very sedate.  Eventually, testing (by BR, for the Class 91/IC225, I think) showed this was all bollocks.  At model train scale, pushing lighter carriages does indeed lead to more derailments but, at full size and weight, it doesn't.  An IC225 is being pushed half the time, and driven from the DVT (driving van trailer, not deep vein thrombosis).

The unluckiest Class 91 has just been scrapped; it was involved in both the Hatfield and Great Heck disasters.  Neither were due to any fault with the locomotive.
Title: Re: The Last 125
Post by: TimC on 18 May, 2021, 11:54:32 am
I used to know a chap whose father used to drive them on the Western Region route 'twixt Cornwall and That London.  The old boy claimed they used regularly to open the taps if a representative of The Man wasn’t around, and wind them up to 140+ mph.

Didn't an HST set an official world record at 146mph? Ah yes - here it is https://en.wikipedia.org/wiki/InterCity_125

148mph.
Title: Re: The Last 125
Post by: TimC on 18 May, 2021, 11:56:47 am
IETs have passengers in leading vehicles.

Sorry that was half the info, the layout of the pendolino leading/trailing carriages was the trade off eventually agreed to along with the significantly better crashworthiness.
I note that in the IET the same amount of buffer is provided to 1st class but not standard

APT-E had passenger-carrying leading and trailing cars.
Title: Re: The Last 125
Post by: Jaded on 18 May, 2021, 12:25:45 pm
Yes. They had to put the two power cars in the middle because they couldn't run high voltage cables along the train, AIUI. Which meant two of everything like buffets on board.
Title: Re: The Last 125
Post by: Regulator on 18 May, 2021, 01:24:02 pm
I note that none of the train nerds in that report are social distancing or wearing appropriate face coverings.  Will we end up with a '125 Surge'?
Title: Re: The Last 125
Post by: grams on 18 May, 2021, 01:30:26 pm
I note that none of the train nerds in that report are social distancing or wearing appropriate face coverings.  Will we end up with a '125 Surge'?

Are you talking about the report from May 2019?
Title: Re: The Last 125
Post by: Regulator on 18 May, 2021, 01:58:22 pm
Ah - missed the date.  :-[