BR 4MT 2-6-4T - resource material

Discussion in 'Resources' started by Dog Star, 12 December 2017.

  1. Steph Dale

    Steph Dale Western Thunderer

    Fraser,
    That's definitely the truth - I suspect the new tyre looks larger because it's newer!

    Steph
     
  2. Yorkshire Dave

    Yorkshire Dave Western Thunderer

    I suspect it's perspective as the new tyre is closer to the camera. The centre driver appears larger than the drivers on the left!
     
  3. eastsidepilot

    eastsidepilot Western Thunderer

    All wheels that are coupled together have to be exactly the same dia. other wise they would travel a different distance in relation to each other.
    If they are different dia's and coupled some wheels would be slipping.
     
  4. Dog Star

    Dog Star Western Thunderer

    True. In the early 1970s Old Oak sent a Hymek to Stratford for wheel turning. The return journey was detrimental to the health of the Hymek's gearboxes... maybe Stratford did not appreciate that the drive to the bogies was connected through a single point.
     
  5. Martin Shaw

    Martin Shaw Western Thunderer

    Some information has come to light, regular readers will remember Peter's (PAD) build on the MOK kit and the discussion he and I had involving injector steam valve handles. I picked up a copy of Part 5 of the RCTS series on the standards which also includes corrections and addendum to the previous volumes. In the section on the 4MTT class "Locomotives to 80058 had wooden handles on the injector steam valves, later engines having four spoked brass wheels". Interestingly of the preserved members of the class the only one of the first 59 is 80002 at KWVR, with the wooden handles that caused much discussion. I haven't been able to find a similar reference to other std classes so I don't know whether this is unique to this class or indeed why it was changed, but my speculation is that the handle didn't last well when struck by the coal hammer because it was jammed.
    Regards
    Martin
     
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