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GWR Cornish Night Riviera Sleeper and GWR Class 57 updates from Long Rock

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Class15

Class15

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fgwrich

fgwrich

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I see that, while 604 has finally returned to service last week from its rather lengthy overhaul, it hasn’t yet been repainted. I wonder if last week’s run was a shakedown for it before sending it off for painting?
 
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irish_rail

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317362 said:
57 scrambled yesterday from Reading to Penzance by the looks?

Realtime Trains | 0Z79 1645 Reading Traincare Depot to Penzance T.& R.S.M.D. | 03/05/2025

Real-time train running information for 0Z79 1645 departure from Reading Traincare Depot to Penzance T.& R.S.M.D. on 03/05/2025. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk www.realtimetrains.co.uk
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602 misbehaving still? Had issues on a couple of days last week. Absolute shed of a loco that one and yet 605 gets a bad press!
 
FGW_DID

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irish_rail said:
602 misbehaving still? Had issues on a couple of days last week. Absolute shed of a loco that one and yet 605 gets a bad press!
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No, it was 57603 on the naughty step this time. Followed by 57305 which should have worked 0Z79, 57312 a late substitution off the bench!
 
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irish_rail

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FGW_DID said:
No, it was 57603 on the naughty step this time. Followed by 57305 which should have worked 0Z79, 57312 a late substitution off the bench!
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Shame, 305 seems a flipping decent loco from a drivers perspective. Wasted on predominantly ECS moves!
 
Tetragon213

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Wonder if GWR could re-use the Class 43 power cars to haul the Riviera when the 57s are playing "find the fault"? I've definitely seen a pair of 43s rescuing a 57 and Riviera in the past.
 
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sh24

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Tetragon213 said:
Wonder if GWR could re-use the Class 43 power cars to haul the Riviera when the 57s are playing "find the fault"? I've definitely seen a pair of 43s rescuing a 57 and Riviera in the past.
Click to expand...

Electrical systems aren’t compatible.
 
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MasterPhillips

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I don’t think it’s been mentioned on here that last Monday morning (28 April) the up sleeper (left Penzance Sunday evening) failed near Pewsey, with a 57 sent down to rescue it. 1A50 then terminated at Reading 155 minutes late.

RTT says it was 57602 but don’t know how reliable that is.

Realtime Trains | 1A50 2115 Penzance to Reading | 27/04/2025

Real-time train running information for 1A50 2115 departure from Penzance to Reading on 27/04/2025. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk www.realtimetrains.co.uk
 
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irish_rail

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MasterPhillips said:
I don’t think it’s been mentioned on here that last Monday morning (28 April) the up sleeper (left Penzance Sunday evening) failed near Pewsey, with a 57 sent down to rescue it. 1A50 then terminated at Reading 155 minutes late.

RTT says it was 57602 but don’t know how reliable that is.

Realtime Trains | 1A50 2115 Penzance to Reading | 27/04/2025

Real-time train running information for 1A50 2115 departure from Penzance to Reading on 27/04/2025. From Realtime Trains, an independent source of train running info for Great Britain.
www.realtimetrains.co.uk www.realtimetrains.co.uk
Click to expand...
Yes was definitely 602.
 
Tetragon213

Tetragon213

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paulwestwood said:
HST's 415 Volt supply Sleeper 1000 Volt Supply
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That's... odd. I'm surprised the Sleeper uses 1000V instead of the more conventional 400/415V system you see elsewhere.

I'm assuming there's some other reason a step-up transformer can't be put in between the locomotive and the coaches?
 
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trebor79

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Tetragon213 said:
Forgive my ignorance, but weren't the Class 43s designed to work with the Mk3 coaches that currently form the Riviera? What did they do to the coaches?!
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I'm assuming there's some other reason a step-up transformer can't be put in between the locomotive and the coaches?
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Class 43 and the MK3 coaches that were built for HST use a non-standard 3 phase electrical system.
 
ABB125

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trebor79 said:
Class 43 and the MK3 coaches that were built for HST use a non-standard 3 phase electrical system.
Click to expand...
Would a better, non-railway biased viewpoint be that the HSTs use "normal" 3-phase as you find in larger buildings up and down the country, whilst other coaching stock uses a non-standard single phase?) 1000V system?
 
43096

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ABB125 said:
Would a better, non-railway biased viewpoint be that the HSTs use "normal" 3-phase as you find in larger buildings up and down the country, whilst other coaching stock uses a non-standard single phase?) 1000V system?
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Completely agree!
 
Nym

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ABB125 said:
Would a better, non-railway biased viewpoint be that the HSTs use "normal" 3-phase as you find in larger buildings up and down the country, whilst other coaching stock uses a non-standard single phase?) 1000V system?
Click to expand...
HST's 3 phase is not "Normal" by any means in terms of supply, the frequency and voltage tolerance is much higher.

Tetragon213 said:
Forgive my ignorance, but weren't the Class 43s designed to work with the Mk3 coaches that currently form the Riviera? What did they do to the coaches?!
Click to expand...
Riviera uses Mk.3A coaches. Not Mk.3.
 
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s491

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Nym said:
HST's 3 phase is not "Normal" by any means in terms of supply, the frequency and voltage tolerance is much higher.


Riviera uses Mk.3A coaches. Not Mk.3.
Click to expand...

The HST supply is not "normal" in terms of the fact the voltage and frequency vary with engine speed - National Grid wouldn't be popular if the mains did that. But it does not preclude the use of "normal" 3 phase machines on it - which is why voltage is set to be 8.3 x frequency to avoid standard 3 phase squirrel cage motors overheating. Compressor, TM blowers, engine room vent fan, air con, and so on are all standard a/c motored. Heating gets a little more fun as you basically just loose power the lower the rpm of the engine, but there are some 1976 simple tricks employed to overcome that.
 
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50002Superb

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Am I correct in understanding that 57301 is allocated to tonight sleeper working, is this the first time it’s worked it?
 
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grecian ern

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The down sleeper failed around the Exeter area early this morning with 57604 in charge, It caused chaos, lots of services cancelled. The loco and the stock were rescued by a pair of HST power cars, presumably to Laira.
 
Ashley Hill

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grecian ern said:
The down sleeper failed around the Exeter area early this morning with 57604 in charge, It caused chaos, lots of services cancelled. The loco and the stock were rescued by a pair of HST power cars, presumably to Laira.
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It was failed on arrival at Exeter due to a bad fuel leak thought to be from somewhere around the power unit. Most of the chaos it seems was caused it blocking platform 5 that was being used for single line working due to a possession outside the station and on P4. And it was rescued by a full Castle set which dragged it to LA.
 
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