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الأنشطة الأخيرة الخاصة بـ Johnb

  1. المشاركة في موضوع Sir Nigel Gresley - The L.N.E.R.’s First C.M.E..

    The railway companies were commercial organisations and the reluctance to absorb basket case local railways goes back further than 1923. The NB wouldn’t work the Invergarry and Fort Augustus Railway on the basis that the revenue wouldn’t cover...

    ‏20 مارس 2026 في 12:42 مساءاً

  2. المشاركة في موضوع Sir Nigel Gresley - The L.N.E.R.’s First C.M.E..

    Any design can be improved with the benefit of hindsight and engineering mistakes are made now, the Ford Ecotech engine being one. My limited knowledge comes from talking to enginemen back in steam days and now. The most awkward to oil up the...

    ‏20 مارس 2026 في 11:11 صباحاً

  3. أعجب Johnb بمشاركة Jamessquared' في موضوع Sir Nigel Gresley - The L.N.E.R.’s First C.M.E..

    Didn’t we have a long thread somewhere considering Gresley and the strengths and weaknesses of his designs, the vagaries of valve gear, and trying to set it all in context of the various constraints he was under as a CME? I seem to recall we...

    ‏20 مارس 2026 في 9:21 صباحاً
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