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brennans letzte Aktivitäten

  1. brennan antwortete auf das Thema GWR four-cylinder arrangement?.

    Probably one of the reasons that Chapelon's work was abandoned by the senior management and the French railways adopted electrification, presumably paid for by the US of A.

    10 Juli 2026 um 17:21

  2. brennan antwortete auf das Thema 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 Juli 2026 um 09:22

  3. brennan antwortete auf das Thema North Yorkshire Moors Railway General Discussion.

    9 Juli 2026 um 08:59
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