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oldmrheath 近期的活动

  1. oldmrheath 支持 SECR 65 在 North Yorkshire Moors Railway General Discussion 内发表的帖子.

    This conversation about steam vs diesel has reminded me of two things (not particularly linked or related to each other): On that NYMR TV programme a fair while back, one of the episodes (or it might even be in the intro) has a section of...

    2026-07-11 , 07:30

  2. oldmrheath 回复主题: North Yorkshire Moors Railway General Discussion.

    I was looking at some reviews for another railway last night and the recent negative reviews were from people who had been expecting steam but got diesel. Yes the balance may be shifting but for many steam is still the expectation Jon

    2026-07-10 , 06:30

  3. oldmrheath 回复主题: North Yorkshire Moors Railway General Discussion.

    It's not just those walking away- it will be the disappointing experience for a number who do travel, including people with advance bookings, leading to people not returning, negative word-of-mouth or reviews etc Jon

    2026-07-09 , 20:25

  4. oldmrheath 支持 brennan 在 North Yorkshire Moors Railway General Discussion 内发表的帖子.

    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....

    2026-07-09 , 12:27
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