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Tornado

Discussion in 'Steam Traction' started by Leander's Shovel, Oct 20, 2007.

Page 132 of 478
  1. MarkinDurham

    MarkinDurham Well-Known Member

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    There's also the matter of stresses within the stays, both thermal and mechanical, is there not? It's a very complex piece of engineering...
     
    MarkinDurham, Apr 13, 2011
    #2621
  2. S.A.C. Martin

    S.A.C. Martin Part of the furniture

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    Thank you - that's most interesting. Learn something new everyday :)
     
    S.A.C. Martin, Apr 13, 2011
    #2622
  3. Pesmo

    Pesmo Member

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    Won't a longer stay also have a greater elastic limit ?
     
    Pesmo, Apr 13, 2011
    #2623
  4. Steve

    Steve Resident of Nat Pres Friend

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    The direct stresses will be no different, whatever the length but the longer the stay, the lower the bending stresses created (for the same relative movement). It is the fluctuation in stress level that is signigicant in fatigue failure.
    Not too certain about the decision to fit hollow stays. The direct stresses will be higher even if the bending stresses are reduced by the revised design. Without full detailed info, it is impossible to calculate, though.
     
    Steve, Apr 14, 2011
    #2624
  5. Spamcan81

    Spamcan81 Nat Pres stalwart

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    Seen in steam today outside the NRM but minus boiler cladding.
     
    Spamcan81, Apr 14, 2011
    #2625
  6. Dan Hill

    Dan Hill Part of the furniture

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    Do all steam locomotives need an out of frames as I seemn to see it a lot with preserved locomotives but because Tornado is a new build does it not have to go through this. Hope the steam test went well.
     
    Dan Hill, Apr 14, 2011
    #2626
  7. S.A.C. Martin

    S.A.C. Martin Part of the furniture

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    It has already had an out of frames steam test in Germany.
     
    S.A.C. Martin, Apr 14, 2011
    #2627
  8. twr12

    twr12 Well-Known Member

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    O levels? Bring 'em back, never did me any harm. Nor did A levels where 45% = E Grade, not A as it does now!
     
    twr12, Apr 14, 2011
    #2628
  9. osprey

    osprey Resident of Nat Pres

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    You can say that again............slide rules an all.....
     
    osprey, Apr 15, 2011
    #2629
  10. class8mikado

    class8mikado Part of the furniture

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    Was sketching out how to fit a new wheel arrangement under a britannia the other day and for the first time in my life found a use for Tan/ Cosin etc.... fantastic
     
    class8mikado, Apr 15, 2011
    #2630
  11. osprey

    osprey Resident of Nat Pres

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    And devised nearly 400 years ago by Napier............
     
    osprey, Apr 15, 2011
    #2631
  12. RalphW

    RalphW Nat Pres stalwart Staff Member Administrator Friend

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    Was that before or after he designed the Deltic engine????
     
    RalphW, Apr 15, 2011
    #2632
  13. osprey

    osprey Resident of Nat Pres

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    Nice one...........the logs that we know today, however, are a simplified version of the original, devised by a local chap called Henry Briggs with the agreement of Napier
     
    osprey, Apr 15, 2011
    #2633
  14. osprey

    osprey Resident of Nat Pres

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    Interesting that.....it got me digging a bit........the founders of D Napier & Sons, taken over by EE in the late forties, were Scottish. Napier of logarithm fame was actually a Scottish mathematician........seems too much of a coincidence to me. Anyhow back to Tornado....its amazing what these boiler stays have generated....
     
    osprey, Apr 15, 2011
    #2634
  15. Waterbuck

    Waterbuck Member

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    Waterbuck, Apr 17, 2011
    #2635
  16. guycarr360

    guycarr360 Part of the furniture

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    guycarr360, Apr 18, 2011
    #2636
  17. MarkinDurham

    MarkinDurham Well-Known Member

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    More good news - only a few more weeks, & she'll be back out where she belongs :)

    Well done to those involved
     
    MarkinDurham, Apr 18, 2011
    #2637
  18. Waterbuck

    Waterbuck Member

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    Waterbuck, Apr 19, 2011
    #2638
  19. Southernman99

    Southernman99 Member Friend

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    Nice to see the correct chimney for its forthcoming BR livery.
     
    Southernman99, Apr 20, 2011
    #2639
  20. williamfj2

    williamfj2 Member

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    The tender is back in the paint shop devoid of lining for some reason. Either that or Flying Scotsman is going into BR green with a non-corridor tender!
     
    williamfj2, Apr 20, 2011
    #2640
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