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Author Topic: 165/166s on this route  (Read 4316 times)
grahame
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« Reply #75 on: November 28, 2018, 10:38:12 pm »

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But for the benefit of the longer distance travellers, wouldn't it have been better to allocate the cut-down HSTs to this line?
A bold YES from me.
Hasn't it been said on here several times that the HSTs are not cleared to run beyond St Denys ?

There are two types of bogies utilised on the HST Mk3 carriages. LSL (long swing link) and SSL (short swing link) and HST sets  ....

Also I think the SSL carriages can't go via Hamble - have to go via Hedge End ??
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martyjon
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« Reply #76 on: November 28, 2018, 10:47:18 pm »

Quote
But for the benefit of the longer distance travellers, wouldn't it have been better to allocate the cut-down HSTs to this line?
A bold YES from me.
Hasn't it been said on here several times that the HSTs are not cleared to run beyond St Denys ?
There are two types of bogies utilised on the HST Mk3 carriages. LSL (long swing link) and SSL (short swing link) and HST sets  ....
Also I think the SSL carriages can't go via Hamble - have to go via Hedge End ??


Might be so.
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bignosemac
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« Reply #77 on: November 28, 2018, 11:10:37 pm »

It's not just LSL bogied Mk3s that are the problem for HSTs operating Cardiff-Portsmouth.

The Class 43 power cars are banned between St Denys and Fareham. Clearance issues on the Hamble Viaduct.  

The HST footex that FGW ran in the past (Swansea to Fratton), along with a Cotswold Line Promotion Group railtour from Hereford to Portsmouth, both in 2011, ran via Chandlers Ford, Eastleigh and Hedge End.

Taking that route wouldn't be practical in daily service as it misses out Southampton Central. Nor would it be practical to call at Southampton then Eastleigh and reverse for Fareham via Botley. That would lengthen the journey time and require a complete timetable recast, where paths between St Denys and Eastleigh would have to be found.

For those reasons, and ensuring you have sets with SSL bogies only for third rail running, means it has never been a serious consideration to run HSTs on Cardiff-Portsmouth services.
« Last Edit: November 29, 2018, 12:43:41 am by bignosemac » Logged

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