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The 10A Allocation

Discussion in 'Steam Traction' started by GWR4707, Apr 8, 2019.

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  1. acorb

    acorb Part of the furniture

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    Wasn't this a one off for Bernard Staite's birthday train? Not sure she did anything else at a higher speed.
     
    acorb, Jun 13, 2026 at 10:21 AM
    #401
  2. LMS2968

    LMS2968 Part of the furniture

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    Not really. The weights were within plates riveted over a set number of spokes and then the lead-antimony weight poured in to a pre-determined weight. The number of spokes covered did not change to suit the amount of lead added.
     
    LMS2968, Jun 13, 2026 at 10:25 AM
    #402
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  3. peckett

    peckett Well-Known Member

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    44766 retained double chimney right up to end .I photted it at Crewe south shed on27/08/1967 .Withdrawn a few weeks later.
     

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    peckett, Jun 13, 2026 at 11:40 AM
    #403
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  4. std tank

    std tank Part of the furniture

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    Correct, as did the others except for 44767.
     
    std tank, Jun 13, 2026 at 11:42 AM
    #404
  5. peckett

    peckett Well-Known Member

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    I often wonder why the 4 Scottish Regiment named Black fives 45154/6/7/8 were transferred from 65B St Rollox to 26A Newton heath .Maybe it was to remove all the domeles boiler locos from Scotland. But then there were plenty of others to choose from including 45155.A swap round of 5Xs was done in the early 1950s ,throat plate fireboxes for slopping .Rare machines from Perth ,Kingmore and Polmadie were sent to the Midland ,common as muck Kentish Town /Nottingham etc were sent North, much to the enjoyment of spotters.45156 was borrowed to work Midland locals ,theY manage to run it hot .Photted at 15A Wellingborogh shed with the centre wheels out on 8/4/1959.
     

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    peckett, Jun 13, 2026 at 12:07 PM
    #405
  6. std tank

    std tank Part of the furniture

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    Only 45154 and 45156 came south.
     
    std tank, Jun 13, 2026 at 12:30 PM
    #406
  7. 26D_M

    26D_M Part of the furniture

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    An odd quirk, this being the 10A thread, is that the 3 5s now under WC ownership each have different boiler configurations.
     
    26D_M, Jun 13, 2026 at 1:55 PM
    #407
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  8. Steve

    Steve Nat Pres stalwart Friend

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    Stephensons is arguably a better valve gear than Walschaerts in terms of valve events. Its downfall is fitting it outside of the wheel which is where you want your valve gear for ease of maintenance. The challenge Ivatt gave to the DO was to do just that and stay within the loading gauge. How many other locos with outside Stephenson’s were there?
     
    Steve, Jun 13, 2026 at 10:09 PM
    #408
  9. Jamessquared

    Jamessquared Nat Pres stalwart

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    Here you are, Steve:

    IMG_5055.jpeg

    You know you want one …

    Tom
     
    Jamessquared, Jun 13, 2026 at 10:19 PM
    #409
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  10. Steve

    Steve Nat Pres stalwart Friend

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    I’ll rephrase the question: How many successful locos with outside Stephensons valve gear were there?:)
     
    Steve, Jun 13, 2026 at 11:10 PM
    #410
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  11. dan.lank

    dan.lank Member

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    Very interesting, thanks. In answer to your question, ironically enough I took this photo earlier today. I’m not sure what you’d call it - not really inside or outside stephensons. Porch-Stephensons?

    [​IMG]


    Sent from my iPhone using Tapatalk
     
    dan.lank, Jun 13, 2026 at 11:12 PM
    #411
  12. dan.lank

    dan.lank Member

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    A successful whimsy!


    Sent from my iPhone using Tapatalk
     
    dan.lank, Jun 13, 2026 at 11:13 PM
    #412
  13. bluetrain

    bluetrain Well-Known Member

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    Outside link motion was common among 19th-Century locos in Continental Europe - although sometimes of the Gooch or Allan variants of Stephenson gear.
     

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    bluetrain, Jun 13, 2026 at 11:48 PM
    #413
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