Sheff's Recente Activiteit
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Sheff vond Jamessquared's post leuk in het topic GWR four-cylinder arrangement?.
So just imagine the logistics for a while. In the normal scenario, a loaded rain comes to rest at Tebay (for Shap). The banker runs onto the back from a convenient siding; within a few minutes the train is back on its way. The banker drops off...
11 jul 2026 om 20:30 -
Sheff reageerde op het topic GWR four-cylinder arrangement?.
But was only for short bursts up the bank, with time between turns to clean the fire and box it up again .
11 jul 2026 om 19:07 -
Sheff vond Steve's post leuk in het topic GWR four-cylinder arrangement?.
Unburnt coal going up the chimney; plain and simple. You need to define what you mean by char but, in my book it is unburnt coal or, more exactly, partially burnt coal which has lost its volatile content but still contains unburnt carbon. That’s...
11 jul 2026 om 19:05 -
Sheff vond Jamessquared's post leuk in het topic 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 jul 2026 om 11:52 -
Sheff vond Jamessquared's post leuk in het topic 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 jul 2026 om 11:51 -
Sheff reageerde op het topic 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 jul 2026 om 09:55 -
Sheff vond Jamessquared's post leuk in het topic 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 jul 2026 om 09:49 -
Sheff vond Jamessquared's post leuk in het topic 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 jul 2026 om 09:49 -
Sheff vond Steve's post leuk in het topic 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 jul 2026 om 22:32 -
Sheff vond iancawthorne's post leuk in het topic 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 jul 2026 om 22:26 -
Sheff vond cksteam's post leuk in het topic 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 jul 2026 om 22:24 -
Sheff vond Jamessquared's post leuk in het topic 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 jul 2026 om 22:22
