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  1. rebmcr

    Class 221 engine cut-out whilst moving.

    Only for hotel power though. Traction power is completely isolated per-car (which is one of the reasons why Project Thor, the bimode conversion by way of inserting pantograph and transformer cars, never made it to production).
  2. rebmcr

    Class 345 progress

    That's brilliant, thanks very much indeed! I don't think it can be easily pinned, so repeated quotes would probably make the most sense. I don't think every single movement needs listing — anyone with interest in that level of detail probably has no worries following the unit numbers...
  3. rebmcr

    CAF Inneo for the DLR

    Interesting designation — I thought the B in the existing names stood for Bombardier. Upon research I find it means Beckton. Does the lack of P-prefixed stock mean that Poplar is no longer being used for heavy maintenance?
  4. rebmcr

    Class 345 progress

    It's kind of difficult to follow the current status without investing quite some time in learning the numbering of all the individual units — would those of you well-versed in the fleet list consider making a 'digest' format something like the following, please, so the rest of us can more easily...
  5. rebmcr

    London Underground stock requests

    Never seen a coupling plate so shiny!
  6. rebmcr

    1992 stock Refurbishment?

    "The"?
  7. rebmcr

    1992 stock Refurbishment?

    I believe it's an internal refresh, plus complete replacement of the traction package with a design that includes AC motors. To cover for the work, services on the Hainault loop have been curtailed — what used to be 8-car through trains are now 4-car shuttles (this is simple to do because 1992...
  8. rebmcr

    Major Road Junctions Discussion, and Comparison Between UK and Other Countries

    That's because there is a stubborn farmer's buildings in the path of where that slip road would be. I favour whirlpools the most. There's another example where the M602 meets the M60 & M62, but they're rarer than I'd like in the UK.
  9. rebmcr

    List of Bay Platforms

    It's not outside the realm of possibility that a train becomes partially-damaged one day and an S4 is formed! Or would that be an "S8-4" or "S7-3", following the naming convention established with the "S7+1"...
  10. rebmcr

    Class 345 progress

    Would that be enough to support the full peak services?
  11. rebmcr

    Class 345 progress

    Well then on behalf of GEML inner commuters, I hope there is never ever an extended closure of the central tunnels!
  12. rebmcr

    Class 345 progress

    I can only assume that Ilford will at some point see reduced use during conversion to accept 9-car 345s? (Rather than complete abandonment by MTA once all the 7-cars are reformed).
  13. rebmcr

    Stock movements between the Northern City Branch and Highgate Depot before 1970

    I think it would have cracked far earlier than that, due to dangerously-overcrowded stations in what's now Zone 1.
  14. rebmcr

    Stock movements between the Northern City Branch and Highgate Depot before 1970

    Ah I misunderstood "use of this line ceased" to mean the original Drayton Park to Finsbury HL section.
  15. rebmcr

    Stock movements between the Northern City Branch and Highgate Depot before 1970

    How did the trains fit up the stairs at Moorgate?
  16. rebmcr

    Met Line fasts stopping at Wembley Park

    When hot weather heats rails, they expand and 'try' to bend out of their usual alignment. It's fairly straightforward to use pre-tensioning on plain line sections (which compensates for it in advance), as well as additional clamps and sometimes even multi-rail strengthened sections along the...
  17. rebmcr

    Class 345 progress

    It seems they are to emulate the function of what would be (under traditional signalling) Limit Of Shunt markers.
  18. rebmcr

    Does LU stock get allocated TOPS numbers when running on Network Rail infrastructure?

    With nine cars in the Piccadilly line's 105m variant (assuming comparable length to 1973 Tube Stock trains), there would be more than a single car's worth of difference in the Central line's 130m version. I think it's likely that passenger layouts (with different vent locations, floor hatches...
  19. rebmcr

    Does LU stock get allocated TOPS numbers when running on Network Rail infrastructure?

    Likely this will also affect the number of spaces for wheelchairs, prams, luggage, and/or bicycles.
  20. rebmcr

    Siemens Inspiro London

    Indeed. Stopping and starting the refrigerant compressors would be extraordinarily inefficient, beyond what many laypeople would expect. Air conditioning condensors & evaporators are very much a 'slow and steady' technology.

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