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Progress on Avanti West Coast's 805/807s Hitachi AT300 sets

43055

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Today's 1A50 (1248 Holyhead-Euston, 805 005) spent 80 minutes at Chester, and as a result it was turned round at Milton Keynes to work the 1D91 return.
Looks like it failed to couple to 805008 which arrived from Holyhead.
 
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Peterthegreat

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Looks like it failed to couple to 805008 which arrived from Holyhead.
I was on it a Chester. 805008 was in the platform at Chester and 805005 came in from Holyhead and the two sets coupled up. Unfortunately it wasn't possible to lock the front rain doors from the rear unit. After rebooting and uncoupling and then recouping nothing improved so the front unit was detached and the rear unit continued on it's own 78 late.
 

Merle Haggard

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Today I travelled Down from Euston in the DMF of -009, which was the wrong way round so 1st was at the front. There's been reference to resonance causing an issue with over-bridges. Is this the same as the resonance, similar to very loud, deep in note, steady wind noise, that permeated this car once speed has built up? It only seems to occur when the pantograph is carrying a load. I haven't noticed anything even remotely similar on East Coast or G.W.R. I.E.T.s.
Together with the sharp 'crack' when passing neutral sections 1st is no longer a quiet environment, but perhaps it only happens when the pantograph is leading.
 

800001

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Today I travelled Down from Euston in the DMF of -009, which was the wrong way round so 1st was at the front. There's been reference to resonance causing an issue with over-bridges. Is this the same as the resonance, similar to very loud, deep in note, steady wind noise, that permeated this car once speed has built up? It only seems to occur when the pantograph is carrying a load. I haven't noticed anything even remotely similar on East Coast or G.W.R. I.E.T.s.
Together with the sharp 'crack' when passing neutral sections 1st is no longer a quiet environment, but perhaps it only happens when the pantograph is leading.
The sharp ‘crack’, will happen at both ends of the train where pantograph is, it is the Vacuum circuit breaker closing and opening when passing neutral sections.
 

Merle Haggard

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The sharp ‘crack’, will happen at both ends of the train where pantograph is, it is the Vacuum circuit breaker closing and opening when passing neutral sections.

Thanks, but realised that - avoided H in Pendos for that reason. But the sound seems much louder than in other emu.
No. The resonance is of the bridge, not the train.

Thanks, I should have remembered the posts more accurately...
I had hoped that it might be addressed in solving the bridge resonance problem, but presumably the noise in the DMF is 'just one of those things' passengers will have to accept. It really is quite loud - much louder than the engine noise in a 221, for instance.
 

800001

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Noticed on Facebook today that 807001 has worked to Liverpool Lime street on test/mileage run as 3Q93 London Euston to Liverpool Lime Street.
 

800Travel

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I thought that 807s were barred from Liverpool due to no power north of Crewe?
390s run Euston to Liverpool Lime Street on the same route so there must be power north of Crewe

3Q93 1305 London Euston to Liverpool Lime Street (807)

1F22 1243 London Euston to Liverpool Lime Street (390)
 

poffle

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I thought that 807s were barred from Liverpool due to no power north of Crewe?
The issues is with running the second scheduled hourly service to Liverpool.

The 807s can run north of Weaver but there is not the power to run twice Liverpool services per hour ( which is what the 807s were bought for.)

The 807s can replace existing Pendolino services.

The existing Pendolino services to Liverpool are running with 807 compatible timings. ( Though there is another issue with running 80xs faster than 110 mph on the WCML. Avanti may not be racing to introduce 807s until that is resolved.)
 

HamworthyGoods

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I thought that 807s were barred from Liverpool due to no power north of Crewe?

The stock is not barred no, there’s just some hours of the day when the 2nd Liverpool train can’t be accommodated due to the power draw depending what else is running in that hour including electric freight.

There has always been some hours back to initial 390 days when a second electric Liverpool service could be accommodated.
 

Sunil_P

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Are there any other electrified sections of the network that suffer from the power draw?
 

800001

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For one, North ECML, TPE 802s and some LNER 800s run on diesel there at certain times
TPE all day Sunday I believe, and the 3rd LNER service per hour (or which ever is bimode in that hour) between Longniddry and Chathill.
 

LNW-GW Joint

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The stock is not barred no, there’s just some hours of the day when the 2nd Liverpool train can’t be accommodated due to the power draw depending what else is running in that hour including electric freight.
There has always been some hours back to initial 390 days when a second electric Liverpool service could be accommodated.
One aspect is probably that the restriction on 807s is linked to the amount of electric freight on the WCML Crewe-Weaver Jn.
The freight TOCs seem to be using predominantly diesel haulage today, but probably have the access rights to go back to electric traction when it suits them.
Not only that, but NR is keen for the TOCs to utilise electric haulage with its higher performance, particularly over the hills.
So there is probably not a practical problem with sending 807s to Liverpool today, but it can't be guaranteed long term until the power situation is improved.
 
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childwallblues

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One aspect is probably that the restriction on 807s is linked to the amount of electric freight on the WCML Crewe-Weaver Jn.
The freight TOCs seem to be using predominantly diesel haulage today, but probably have the access rights to go back to electric traction when it suits them.
Not only that, but NR is keen for the TOCs to utilise electric haulage with its higher performance, particularly over the hills.
So there is probably not a practical problem with sending 807s to Liverpool today, but it can't be guaranteed long term until the power situation is improved.
There is currently only Freightliner running Class 90s north of Crewe and that is mainly in the evening. Some do reach Garston or Ditton mainly from Felixstowe.
 

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