XPost: uk.railway, uk.transport.london   
      
   On 21.12.17 23:45, Charles Ellson wrote:   
   > On Thu, 21 Dec 2017 13:33:34 +0000, "hounslow3@yahoo.co.uk"   
   >  wrote:   
   >   
   >> On 21.12.17 10:34, boltar@cylonHQ.com wrote:   
   >>> On Thu, 21 Dec 2017 00:24:04 +0000   
   >>> "hounslow3@yahoo.co.uk"  wrote:   
   >>>> On 20.12.17 22:44, Clive D.W. Feather wrote:   
   >>>>> In article , hounslow3@yahoo.co.uk   
   >>>>>  writes   
   >>>>>>> What about in the reverse direction? You want the pan to come up while   
   >>>>>>> in the transition area.   
   >>>>>>   
   >>>>>> Nope, got to set the mode switch and manually raise them. Pans will also   
   >>>>>> not go up if any part of the train is on contact with the 3rd rail.   
   >>>>>   
   >>>>> So what do you do at the equivalent of Drayton Park, where the train   
   >>>>> comes to a stop on the 3rd rail but needs to start on the overhead   
   >>>>> because the third rail ends 5 metres beyond the front of the stopped   
   >>>>> train?   
   >>>>>   
   >>>> I was speaking about M-2s, and not about 313s. I assumed, in the latter   
   >>>> case, that there is a mode switch.   
   >>>   
   >>> So you mean they won't go up automatically, not won't go up at all?   
   >>   
   >> Exactly. The driver (engineer) switches the power mode, then hits the   
   >> "pan up" switch.   
   >>   
   >>> Because   
   >>> if they won't go up at all when on 3rd rail you've got a problem, unless   
   over   
   >>> there they have to coast off the 3rd rail   
   >>   
   >> They coast off the 3rd rail and then raise when completely under the   
   >> wire and moving. It's done on the fly, AIUI, to help the train quickly   
   >> assimilate the new power.   
   >>   
   > Not done here where OHLE and 3rd rail overlap or share a section of   
   > track (Camden Bank). Changing on the move is a minority activity done   
   > by cl.378s (only ?).   
      
   Changing over at V-Zero on an M-2 will mean a rough start, and is thus   
   ill-advised.   
      
   Are the M-2s still running, by the way? I know that the New Haven Line   
   EMUs are now mainly M-8, though I was under the impression that   
   Metro-North were keeping a few around for peak services.   
      
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