Sheff's Recent Activity
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Sheff replied to the thread North Yorkshire Moors Railway General Discussion.
I stand corrected then. I’m only acquainted with WCs, S160s and Tornado.
Jul 25, 2026 at 5:57 PM -
Sheff replied to the thread North Yorkshire Moors Railway General Discussion.
…. for completeness, cf a steel box which being all welded doesn’t have laps.
Jul 25, 2026 at 4:47 PM -
Sheff liked torgormaig's post in the thread North Yorkshire Moors Railway General Discussion.
I dont think it does either. There is an interesting website about the current restoration of Alaskan Railways N0. 557, an oil burning S160. It included a video of the laying of fire bricks in the firebox which is clearly without a combustion...
Jul 25, 2026 at 4:44 PM
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Sheff liked Steve's post in the thread North Yorkshire Moors Railway General Discussion.
That's an interesting question and I don't know the answer. Looking at photos, I don't think it does but that's only a guess.
Jul 25, 2026 at 4:44 PM -
Sheff liked Steve's post in the thread North Yorkshire Moors Railway General Discussion.
I believe the prime area for degradation in copper boxes are the lap joints where the amount of copper is much thicker than the rest of the box. Although copper is a good conductor, the temperature gradient is fairly constant, thus causing the...
Jul 25, 2026 at 4:43 PM -
Sheff liked Trevor Beglin's post in the thread North Yorkshire Moors Railway General Discussion.
Sorry to be that person but might be worth creating a new thread for oil burning as the threads deviated a little
Jul 25, 2026 at 4:43 PM -
Sheff liked TonyW's post in the thread North Yorkshire Moors Railway General Discussion.
I did: *** Copper fireboxes are actually suitable for oil firing and have been used successfully with liquid fuels, meaning the premise that they cannot be used is incorrect. Operational Factors Flame Impingement: Direct contact between a raw,...
Jul 25, 2026 at 11:59 AM -
Sheff liked Kylchap's post in the thread P2 Locomotive Company and related matters.
IIRC the A1Trust carry out final assembly of mating components with a film of wet paint between the two, which is supposed to give protection which is superior to assembly with either bare metal faces or faces previously painted where the paint...
Jul 24, 2026 at 10:35 PM -
Sheff replied to the thread P2 Locomotive Company and related matters.
Monobloc finally installed today https://mailchi.mp/a1steam/monoblocfitted?e=412f4848b6
Jul 24, 2026 at 8:12 PM -
Sheff replied to the thread North Yorkshire Moors Railway General Discussion.
You can ask Google AI why and you’ll get some plausible answers, some maybe not so much ….
Jul 24, 2026 at 5:22 PM -
Sheff liked torgormaig's post in the thread North Yorkshire Moors Railway General Discussion.
Oh no? This is the UP Challanger coming over the brow of the Continental Divide at Creston, Wyoming in 1995 - it could be seen coming for miles:([ATTACH] This is it a couple of minutes later [ATTACH] That said, I have no idea what grade of...
Jul 24, 2026 at 11:42 AM
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Sheff liked Steve's post in the thread North Yorkshire Moors Railway General Discussion.
I agree that the exhaust is generally on the dark side. I suspect that there is still some tweaking to be done rather than crew inexperience. The fuel oil essentially needs to be burnt before the gases hit the tubes so dwell time of the flame...
Jul 24, 2026 at 11:41 AM -
Sheff replied to the thread North Yorkshire Moors Railway General Discussion.
Regarding smoke Tom, on all the clips I’ve seen the exhaust is a good bit darker than I’d be happy with on coal. If it were coal fired you’d say the fireman had just put a heavy round on. As it’s oil I’d assume there’s less such fluctuations as...
Jul 24, 2026 at 8:39 AM -
Sheff replied to the thread North Yorkshire Moors Railway General Discussion.
Must have been reading NP :D
Jul 23, 2026 at 10:41 AM
