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  1. 3

    why is there a limit on how many units can work in multiple?

    On the Southern Region , the limit was the 3rd rail current . With 1950/1960 units 12-car was the limit e.g 3 x 4VEP or 6 x 2EPB Only 2 Class 73's could MU in electric mode , 3 x 73 would blow the substation breakers.
  2. 3

    Steam Auto train working No Guard provided Great Western Railway

    Gloucester - Chalford AutoTrains carried a conductor to sell tickets from the unstaffed halts. Not sure about the Forest of Dean branches
  3. 3

    1500V DC OHL Electrification - More Robust?

    The main problem with the 303 and 305 units was the mercury-arc rectifiers. ( Later replaced by silicon diodes ) Faulty rectifiers would put pulses of dead short across the transformer secondary. On the Glasgow units, this would cause heating and loosening of the secondary winding causing...
  4. 3

    1500V DC OHL Electrification - More Robust?

    The main weakness of the 1500v DC system over Woodhead was the 11KV or 33kv buried cable connecting the substations together which would often burn out cable ends. Strafford substation would be pushed to the limit with an MGR train with 2 76's on the front and 2 on the rear. ( This was on the 1...
  5. 3

    1st gen DMUs and DEMUs

    In the 1950/60's there were 3 loading gauges on the SR Restriction 0 - Tunbridge Wells - Hastings ( tunnel restrictions ) Restriction 1 - Tunbridge Wells Central - West ( tunnel restrictions ) Restriction 4 - Other Routes ( Same as BR C1 ) Hastings units were restriction 0 Oxted Units were...
  6. 3

    Windows Powershell

    Used Powershell sorting out Windows 10 security holes. Configuring and deleting unwanted windows services and scheduled tasks
  7. 3

    What is your earliest memory of travelling on a train?

    First remembered trip was a 14xx and autotrailer from Gloucester to Stroud and back.
  8. 3

    Calling any software developers

    Now retired from many happy years fixing Tops/Diads/Crewplan/Genius/Voyagerplan. First learnt C and assembler in 1991
  9. 3

    New Lines Built Between 1923 and the mid 1990s

    First one that comes to mind is the Chessington branch built by the Southern Railway
  10. 3

    If you were forced to self isolate...

    Assemble all the '0' guage coach and wagon kits from the loft that I bought about 30 years ago.
  11. 3

    TRIVIA: Practices that are peculiar to the UK

    In rural Southern Ireland you have to guess from the age of the sign whether it is Km's or miles.
  12. 3

    Trivia: Right hand running

    When the Chicago North Western was built, Station buildings were usually on the north side of the line. When the lines were doubled, LH running was adopted to keep the busier eastbound trains nearer to the station buildings.
  13. 3

    Mark 1 suburban coaches

    Mk1 suburban coaches were also used in the Glasgow area, not in sets but mixed in with ex-LMS and LNER coaches.
  14. 3

    Impressive performance by Canadian train

    Will be at least a pair of 200-ton freight locos with a substantial snowplough. probably EMD SD70 or GE C44-9
  15. 3

    Union of South Africa damages Carriage gangway on the ELR

    The van has a screw coupling and a british std gangway, the A4 has a buckeye couple and pullman gangway. A british std gangway has a locking lever on each side that must be opened. From the video, it looks like the lever on the platform side was released but not on the other side.
  16. 3

    Abellio Greater Anglia Class 755s (Regional Trains)

    Felixstowe branch service resumed this evening with 755 332
  17. 3

    Trivia: Interesting or unusual railway stations in other countries.

    Toronto Union Station. magnificent stonework, recently refurbished. Served by VIA Rail, GO Transit and UP Express Starting point for the 2800 mile run to Vancouver
  18. 3

    Abellio Greater Anglia Class 755s (Regional Trains)

    755 421 seems to be running happily on the Felixstowe today
  19. 3

    Liverpool to Southport railway line query

    Reports found in Modern Railways from 1963 Line was making heavy losses and had declining ridership.
  20. 3

    Left Hand Drive Double Deckers?

    GO Transit double deck buses are common in Toronto Canada