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Saphos 2024

Rasprava u 'What's Going On' pokrenuta od NathanP, 1. Studeni 2023..

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  1. John2

    John2 Member

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    HSTS are not fitted with sanding equipment and have less adhesive weight.
     
    John2, 29. Listopad 2024.
    #681
    Paul42 and 35B like this.
  2. MellishR

    MellishR Resident of Nat Pres Friend

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    Please explain your thinking. The gearing affects the available TE, but that is evidently perfectly adequate on a dry rail. On a slippery rail, the normally available TE ceases to be available if the wheels slip, and when that happens depends on the adhesive weight.
     
    MellishR, 29. Listopad 2024.
    #682
  3. MellishR

    MellishR Resident of Nat Pres Friend

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    But still more adhesive weight in relation to the total train weight than with a typical train with a loco at one end only.
     
    MellishR, 29. Listopad 2024.
    #683
  4. 35B

    35B Nat Pres stalwart

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    You have introduced TE; I've not mentioned it. The gearing (mechanical and electrical) is designed to optimise performance at high speed. That is, like so many things on the railways, a design compromise. Part of the compromise is that the performance of the HST at low speeds is comparatively poor in relation to other trains of similar configuration. Another, related, aspect of this is the difficulty in maintaining adhesion in adverse conditions on steep, and/or twisty lines, as seen in examples like last weekend or my 1990 trip over Copy Pit.

    A lower geared locomotive (given the WHR is in question, let's say a class 27) is better able to apply it's available power in those conditions so, despite being markedly less powerful, may perform better in the specific conditions.
     
    35B, 29. Listopad 2024.
    #684
  5. free2grice

    free2grice Part of the furniture Friend

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    A loco at one end only? Ah, those were the days ;). <BJ>
     
    free2grice, 29. Listopad 2024.
    #685
    MikeParkin65, Romsey, Big Al i 1 drugoj osobi se sviđa ovo.
  6. The Gricing Owl

    The Gricing Owl Well-Known Member

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    Yes, a proper railway train!
     
    The Gricing Owl, 29. Listopad 2024.
    #686
    BrillTramway se sviđa ovo.
  7. Oswald T Wistle

    Oswald T Wistle Well-Known Member Friend

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    The WCRC train would have been the heavier of the two trains, but had the advantage of sanding, lower gearing(?) and almost twice as many driving wheels as the HST. All these factors must have combined to allow it to climb away where the HST had failed
     
    Oswald T Wistle, 29. Listopad 2024.
    #687
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  8. NathanP

    NathanP Member

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    After the issue last weekend, I notice from Facebook that for this weekend's tour LSL sent the Class 40 up as a support loco to tail the HST. A sensible move I think.
     
    NathanP, 3. Studeni 2024.
    #688
  9. alastair

    alastair Well-Known Member

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    Interesting, but could it couple up to the HST if it needed to?
     
    alastair, 3. Studeni 2024.
    #689
  10. RalphW

    RalphW Nat Pres stalwart Staff Member Administrator Friend

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    Would they have gone to the expense etc involved if it could not be coupled up?
     
    RalphW, 3. Studeni 2024.
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    Mike Wylie, Spitfire i 26D_M se sviđa ovo.
  11. 35B

    35B Nat Pres stalwart

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    Locos have always been able to attach to HSTs using an emergency coupling - the 40s will be no different to any other class in that respect. I'm not sure how good those emergency couplings are for banking, though - while the more noteworthy part of the whole move is seeing a 1-C0-Co-1 on the WHL.
     
    35B, 3. Studeni 2024.
    #691
  12. MellishR

    MellishR Resident of Nat Pres Friend

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    On a line with RETB (which I assume still applies to the West Highland), if a train gets stuck and needs a banker, is there an easy procedure for allowing the banker into the single-line section?
     
    MellishR, 3. Studeni 2024.
    #692
  13. 5944

    5944 Resident of Nat Pres

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    It was 37521 that was sent to Fort William, not the 40. Not that it seemed to make a great deal of difference - the HST lost 56 minutes before even getting to Monessie Gorge!

    https://www.realtimetrains.co.uk/service/gb-nr:U30874/2024-11-03/detailed
     
    5944, 3. Studeni 2024.
    #693
    Gladiator 5076 and 35B like this.
  14. class8mikado

    class8mikado Part of the furniture

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    Another reason to get some Buffers on it.
     
    class8mikado, 5. Studeni 2024.
    #694
  15. 2857Harry

    2857Harry Well-Known Member

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    Saturday 16th, White Rose - 60007 from Peterborough. Note the return is diesel hauled York to Gascgoine Wood, before reversal.

    https://www.realtimetrains.co.uk/service/gb-nr:U32069/2024-11-16/detailed

    https://www.realtimetrains.co.uk/service/gb-nr:U32074/2024-11-16/detailed


    Wednesday 20th, White Rose. Steam is booked to do this from Crewe. Again diesel hauled York to Gas Wood, before reversal.

    https://www.realtimetrains.co.uk/service/gb-nr:U35132/2024-11-20/detailed

    https://www.realtimetrains.co.uk/service/gb-nr:U35137/2024-11-20/detailed
     
    2857Harry, 12. Studeni 2024.
    #695
    sunstream, 46223, Britfoamer i 2 ostalih se sviđa ovo.
  16. 47840

    47840 New Member

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    Is there any indication which loco may work the White Rose on Wednesday 20th please?
     
    47840, 14. Studeni 2024.
    #696
  17. neildimmer

    neildimmer Resident of Nat Pres

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    Saturday 23rd White Rose, steam on rear from Preston to Warrington BQ then forward to York
    https://www.realtimetrains.co.uk/service/gb-nr:U35547/2024-11-23/detailed

    https://www.realtimetrains.co.uk/service/gb-nr:U35551/2024-11-23/detailed
     
    neildimmer, 14. Studeni 2024.
    #697
    sunstream, jsm8b i Oswald T Wistle se sviđa ovo.
  18. steamingyorkshire

    steamingyorkshire Well-Known Member

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    I believe the B1, 61306
     
    steamingyorkshire, 15. Studeni 2024.
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    5098, YorkyLad, Oswald T Wistle i 3 ostalih se sviđa ovo.
  19. 2857Harry

    2857Harry Well-Known Member

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    Yes B1 Wednesday, A4 this Saturday coming. Would assume the B1 the following Saturday too.

    As far as I understand 46100 has one final trip pencilled in before withdrawal, with 70000 handling much of the Southall work this Xmas.
     
    2857Harry, 15. Studeni 2024.
    #699
    Mick45305, 5098, Oswald T Wistle i 2 ostalih se sviđa ovo.
  20. neildimmer

    neildimmer Resident of Nat Pres

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    shame 60532 Blue Peter can’t do one
     
    neildimmer, 15. Studeni 2024.
    #700
    banana patch se sviđa ovo.
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