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  1. Smokestack Lightning
    Post

    P2 Locomotive Company and related matters

    Are the poppet valves similar to the Caprotti design, which allow flow through the valves as well as around? I though that the VVT systems...
    Post by: Smokestack Lightning, Oct 23, 2018 in forum: Steam Traction
  3. Smokestack Lightning
    Post

    49395 Super D, Will it run again ?

    I remember when it was on the NYMR, waiting on the platform at Goathland and watching it struggling up the hill from Grosmont. It seemed to take...
    Post by: Smokestack Lightning, Oct 23, 2018 in forum: Steam Traction
  4. Smokestack Lightning
    Post

    82045 The way ahead?

    If it was my decision, I think I would make sure it was built to main line standards (pun not really intended, but sort of unavoidable). I'm not...
    Post by: Smokestack Lightning, Jul 31, 2018 in forum: Steam Traction
  5. Smokestack Lightning
    Post

    The genie in the railway lamp

    How about it turns out the strategic reserve really does exist, and is discovered intact and in good condition. ;) Dave
    Post by: Smokestack Lightning, Jul 25, 2018 in forum: Steam Traction
  6. Smokestack Lightning
    Post

    The genie in the railway lamp

    While we are well off topic, I remember reading stories of two different near misses Hitler had in car accidents. Neither were responsible for...
    Post by: Smokestack Lightning, Jul 22, 2018 in forum: Steam Traction
  7. Smokestack Lightning
    Post

    Tornado

    Fair enough. Dave
    Post by: Smokestack Lightning, Jul 21, 2018 in forum: Steam Traction
  8. Smokestack Lightning
    Post

    The genie in the railway lamp

    If that happened I would disappear, because my mum and dad only met as a result of WW2. :( Dave
    Post by: Smokestack Lightning, Jul 21, 2018 in forum: Steam Traction
  9. Smokestack Lightning
    Post

    Tornado

    Surely the 9 miles is irrelevant in your calculations? The power required to maintain speed would be the same whatever the distance involved. Dave
    Post by: Smokestack Lightning, Jul 21, 2018 in forum: Steam Traction
  10. Smokestack Lightning
    Post

    Tornado

    Phew, thanks. Funnily enough the only two V2s I ever travelled behind, possibly why it stuck in my mind. Dave
    Post by: Smokestack Lightning, Jul 13, 2018 in forum: Steam Traction
  11. Smokestack Lightning
    Post

    Tornado

    Didn't Green Arrow drop its middle con rod a few years ago, and then limp on with two cylinders after the crew had safely secured it? Or did I...
    Post by: Smokestack Lightning, Jul 13, 2018 in forum: Steam Traction
  12. Smokestack Lightning
    Post

    35018 British India Line

    True up to a point. But if two locos have the same TE then the one with bigger wheels will, in effect, have a bigger engine. (Higher boiler...
    Post by: Smokestack Lightning, Jun 17, 2018 in forum: Steam Traction
  13. Smokestack Lightning
    Post

    35018 British India Line

    But, the nominal TE for a given loco class is what it is, and driving wheel diameter is accounted for in the calculation. If two locos have...
    Post by: Smokestack Lightning, Jun 17, 2018 in forum: Steam Traction
  14. Smokestack Lightning
    Post

    LMS Record of 114mph

    My understanding is that, as speed rises, reducing cylinder efficiency starts to dominate vs the beneficial effect of the higher speed on power...
    Post by: Smokestack Lightning, Jun 16, 2018 in forum: Steam Traction
  15. Smokestack Lightning
    Post

    LMS Record of 114mph

    But, at what speed was 6234's output achieved at? Surely to achieve that output at 126 mph was outstanding. Dave
    Post by: Smokestack Lightning, Jun 16, 2018 in forum: Steam Traction
  16. Smokestack Lightning
    Post

    Current and Proposed New-Builds

    That hardly suggests that Royal Scot is in some way struggling due to larger wheels. Dave
    Post by: Smokestack Lightning, Apr 3, 2018 in forum: Steam Traction
  17. Smokestack Lightning
    Post

    70013 Oliver Cromwell

    According to an on-line calculator, 15 guineas in 1968 would be £272.50 at today's value. Dave
    Post by: Smokestack Lightning, Mar 26, 2018 in forum: Steam Traction
  18. Smokestack Lightning
    Post

    Liveries!

    Ironically,whenever I read these livery debates, it always occurs to me that there is actually no such thing as colour in the physical world! It...
    Post by: Smokestack Lightning, Mar 5, 2018 in forum: Steam Traction
  19. Smokestack Lightning
    Post

    6201, her new lease of life.

    I was replying to @forty though, not Bob, although I did refer to the details in Bob's post. Dave
    Post by: Smokestack Lightning, Feb 26, 2018 in forum: Steam Traction
  20. Smokestack Lightning
    Post

    6201, her new lease of life.

    Agreed. I was suggesting that the original purchasers would probably not have had problems with the loco being made operational, not that...
    Post by: Smokestack Lightning, Feb 26, 2018 in forum: Steam Traction
  21. Smokestack Lightning
    Post

    6201, her new lease of life.

    I have no knowledge of the loco's preservation history (I have never even seen it, so would love to see it come back). But the comment from...
    Post by: Smokestack Lightning, Feb 26, 2018 in forum: Steam Traction
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