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#112
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wrote in message
One small question - does newer dual voltage stock (since the 313s) have the capability to switch between third rail and overhead on the fly between North Pole and Shepherd's Bush? The 313s were designed only to switch in stations (Drayton Park actually) but no-one envisaged a changeover point between stations in the 1970s. No, Desiros and ElectroStars also come to a complete stop for what seems like an age for the voltage change. If anything, it seems like they take longer than the 313s, presumably because of the complex electronics and computers that may need rebooting. |
#113
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On Sep 20, 2:10*pm, "Recliner" wrote:
wrote in message One small question - does newer dual voltage stock (since the 313s) have the capability to switch between third rail and overhead on the fly between North Pole and Shepherd's Bush? The 313s were designed only to switch in stations (Drayton Park actually) but no-one envisaged a changeover point between stations in the 1970s. No, Desiros and ElectroStars also come to a complete stop for what seems like an age for the voltage change. If anything, it seems like they take longer than the 313s, presumably because of the complex electronics and computers that may need rebooting. The Electrostars can change over on the move, but normally don't. I've never been on a unit that's done it myself, but know of people who have. On the West London Line at North Pole Junction, there's little difference in the time spent stationary between a 313 and a 377, although the PIS system on a 377 is sometimes still rebooting after Shepherd's Bush when heading south. Class 313s can actually change over on the move, very occasionally a 313 will leave Euston on AC and won't stop until arriving at South Hampstead on DC, I've managed this maneuver at least once during the rebuild of the Euston station throat. |
#114
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On Sun, 20 Sep 2009 06:23:35 -0700 (PDT), Andy
wrote: The Electrostars can change over on the move, but normally don't. I've never been on a unit that's done it myself, but know of people who have. On the West London Line at North Pole Junction, there's little difference in the time spent stationary between a 313 and a 377, although the PIS system on a 377 is sometimes still rebooting after Shepherd's Bush when heading south. It always struck me as very poor design that the PIS reboots when changing voltage. Wouldn't it make more sense for it to operate from a battery? Or were the units not designed for changing "on the fly"? Neil -- Neil Williams Put my first name before the at to reply. |
#115
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#116
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DW downunder reply@newsgroup wrote on 19 September 2009 05:51:41 ...
"Recliner" wrote in message But many Overground trains will use National Rail stations, complete with double-arrows. In any case, though you may think it's illogical, imperfect Londoners do tend to refer to all non-Underground/DLR services as 'overground trains'. That's something that has developed since 1987, when I returned to Oz. Certainly, none of US called anything the overground. The whole concept of Network South East was to give the whole home counties and beyond a product concept built on the Underground model of clarity (if not frequency). I've come to the conclusion that this must be a generation thing. I've never used 'overground' to refer to anything but LO. In my own experience, people have tended to stick with out-of-date or inaccurate terms like 'British Rail' or 'main-line' when referring to National Rail services as a whole. -- Richard J. (to email me, swap 'uk' and 'yon' in address) |
#117
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On Sun, 20 Sep 2009 11:58:29 -0500,
wrote: Hmm. Was that one of the the mods for NLL/Silverlink Metro use? I know they changed the controls so they can run on DC in parallel as well as in series. Interesting - that may make them very useful indeed for any future extensions of Merseyrail. Neil -- Neil Williams Put my first name before the at to reply. |
#118
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On 20 Sep, 18:10, "Richard J." wrote:
DW downunder reply@newsgroup wrote on 19 September 2009 05:51:41 ... "Recliner" wrote in message But many Overground trains will use National Rail stations, complete with double-arrows. In any case, though you may think it's illogical, imperfect Londoners do tend to refer to all non-Underground/DLR services as 'overground trains'. That's something that has developed since 1987, when I returned to Oz. Certainly, none of US called anything the overground. The whole concept of Network South East was to give the whole home counties and beyond a product concept built on the Underground model of clarity (if not frequency). I've come to the conclusion that this must be a generation thing. *I've never used 'overground' to refer to anything but LO. *In my own experience, people have tended to stick with out-of-date or inaccurate terms like 'British Rail' or 'main-line' when referring to National Rail services as a whole. -- Richard J. (to email me, swap 'uk' and 'yon' in address) It may also be geographical. Anywhere outside of northish London, there would be no need to make the contrast. I don't think I used the term myself, but I know that others did, particularly where there was a choice, eg Stratford to Liverpool Street, or Walthamstow Central into central London. |
#119
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Richard J. wrote:
In my own experience, people have tended to stick with out-of-date or inaccurate terms like 'British Rail' Perhaps they are saying 'British rail', in which case it isn't inaccurate. -- http://gallery120232.fotopic.net/p14486542.html (FY SW1001 44 (no TOPS class) at Merehead, 26 Jun 1994) |
#120
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In article , aooy65
@dsl.pipex.com says... On Fri, 18 Sep 2009 02:17:37 -0700 (PDT), Sim wrote: In the old days, Queen's Park was the last LT-managed station on the route to Watford, which was firmly BR (and before that LMS) thereafter all the way to Watford. The Bakerloo was the "guest". When did LT ever manage Queens Park Station? All the time I have been with LT it was either a BR operated station and then post franchising it passed to Silverlink. Only at the time when Silverlink ceased and LOROL took over did it transfer to LU operation and even then things like ticketing remain on NR equipment and NR ticketing rules (the same applies all the way up to Harrow, barring Willesden Junction which is LOROL operated). Happy to be corrected if LT did run it back from 1933 or whenever and it then later passed to BR. I'd be surprised that LT would have ceded ownership (and the revenue) if it had had any choice. Queens Park certainly issued LTE tickets whereas the stations further on had BR tickets. |
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