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Sheffs letzte Aktivitäten

  1. Sheff gefällt Jamessquareds Beitrag in dem Thema GWR four-cylinder arrangement?.

    And the overall financial efficiency of that? You are falling into the same trap as everyone else, finding ever more elaborate workarounds to enable one technological option while ignoring the total cost of operation. Tom

    11 Juli 2026 um 11:52

  2. Sheff gefällt Jamessquareds Beitrag in dem Thema GWR four-cylinder arrangement?.

    It's not the steam to power the stoker that is the issue, it is that large amount of coal disappears straight up the chimney unburnt. Tom

    11 Juli 2026 um 11:51

  3. Sheff antwortete auf das Thema GWR four-cylinder arrangement?.

    I would say that the unburnt fuel loss was more due the amount of fines that were generated by the screw feed system, which simply passed straight through the tubes and out of the exhaust without ever properly combusting. Take a look at the...

    11 Juli 2026 um 09:55

  4. Sheff gefällt Jamessquareds Beitrag in dem Thema GWR four-cylinder arrangement?.

    Sorry, I don’t understand that? Are you saying that fitting a mechanical stoker has neglible impact on efficiency? Because my understanding was that typically you’d burn about 25% more coal for the same output. Which rather screws your overall...

    11 Juli 2026 um 09:49

  5. Sheff gefällt Jamessquareds Beitrag in dem Thema GWR four-cylinder arrangement?.

    How do you propose to fire a 6,000hp steam loco? That’s well beyond the capability of a single fireman, so you fall back presumably on a mechanical stoker - which rather throws away the enhanced cylinder efficiency by creating worse boiler...

    11 Juli 2026 um 09:49

  6. Sheff gefällt Steves Beitrag in dem Thema North Yorkshire Moors Railway General Discussion.

    The NYMR is on a knife edge with regard to motive power at the moment. I'm told that 37688 has failed and it looks like 44806 is, apparently, the sole 'Whitby' loco and will have to shuttle back and forth between Grosmont and Whitby. That...

    10 Juli 2026 um 22:32

  7. Sheff gefällt iancawthornes Beitrag in dem Thema North Yorkshire Moors Railway General Discussion.

    If you're over for a day trip, yes probably, but if you're in the area on holiday for a week like we are in just over a week's time. We intend to travel as a family, but if it's a diesel at the front, we'll be walking away and doing something...

    10 Juli 2026 um 22:26

  8. Sheff gefällt cksteams Beitrag in dem Thema North Yorkshire Moors Railway General Discussion.

    I don't disagree that the NYMR need to make more of its other stations and be more imaginative with events etc. But I do believe that the main attraction to any heritage railway is the motive power. The NYMR have other features it can utilize...

    10 Juli 2026 um 22:24

  9. Sheff gefällt Jamessquareds Beitrag in dem Thema North Yorkshire Moors Railway General Discussion.

    I think the last part of @cksteam comment was well made though. You have a situation like Bridge 42 that has a massive impact on your operation and removes your key attraction. OK - what can you do? The answer surely has to be "how can we make...

    10 Juli 2026 um 22:22
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