> In article
> <58fec73d-b7a4-4a11-b79b-0669f841a...@d77g2000hsb.googlegroups.com>,
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> ch...@kuching.co.uk (somersetchris) wrote:

>> On Sep 17, 7:20 am, asdf wrote:

>>> On Mon, 15 Sep 2008 15:17:34 -0700 (PDT), MIG wrote:

>>>>>> As I understand it, it's shortage of rolling stock which needs
>>>>>> the Euston trains to go to Stratford. With fewer trains on a
>>>>>> Sunday there are some available to go to Euston.

>

>>>>> I don't think it is lack of rolling stock, as there are sufficient
>>>>> units spare (for starters, all three class 508s are available) to
>>>>> run at least a Euston - Willesden Jcn shuttle. However, there
>>>>> would be a probably be a lack of paths between Queens Park and
>>>>> Willesden Junction due to the increased Bakerloo service at
>>>>> least during the peaks.-

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>>>>I was just gonna say, presumably the 508s can't be used for any
>>>>services other than into Euston, and with so many lines closed,

> there

>>>>can't be a shortage.

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>>> Can't Watford Junction to Stratford be done entirely on DC? (There's

> a

>>> dual-electrified stretch where the 313s normally switch to AC, but
>>> presumably DC can still be used.)

>

>>> (Not that there can possibly be a stock shortage. If there's enough
>>> stock to run the normal Euston-Watford and NLL services, then there's
>>> enough to run Euston-Watford as normal and Stratford to Willesden Jn
>>> going via Primrose Hill instead of West Hampstead.)

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>> The reason why the trains switch to AC is because trains using the DC
>> stretch along there would have to go at half power.

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> Isn't that just a general feature of the 313s? As built for the GN they
> ran in series only on DC because the Northern City Line section is
> limited to 30 MPH anyway. It doesn't affect the 508s and I thought the
> 313s transferred to the NLL/Euston Watford Service were modified.
>