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Текущая активность brennan

  1. brennan ответил(а) в теме North Yorkshire Moors Railway General Discussion.

    Basic thermodynamics. Whilst heat transfer in the boiler is reasonably efficient the open steam cycle used in a locomotive is horribly inefficient. A diesel engine has an efficiency in the order of 30% to 40% then there are transmission losses....

    9 июл 2026 в 09:22

  2. brennan ответил(а) в теме North Yorkshire Moors Railway General Discussion.

    9 июл 2026 в 08:59

  3. brennan ответил(а) в теме 76077.

    Paraffin overhauls are a thing of the past. Non ferrous material costs in particular are sky high and nobody with the required skills works for the minimum wage. It's still a cheap job compared to having your yacht fixed!

    6 июл 2026 в 08:33

  4. brennan ответил(а) в теме 76077.

    It's only money!

    4 июл 2026 в 09:45

  5. brennan ответил(а) в теме 30075 at Plym Valley Railway.

    Has 30075 been used at the Plym Valley yet? Nothing on their Facebook page.

    3 июл 2026 в 13:52
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