HO to O scale ratio?

Discussion in 'FAQs' started by spitfire, Sep 3, 2002.

  1. spitfire

    spitfire Active Member

    Hi all

    I'm sure this question has been asked and answered before, but I can't find it so I'll ask again. What percent would you need to use to enlarge HO plans to O scale?

    Thanks in advance.
  2. Edavillenut

    Edavillenut Member

    double them
    HO is half of O
  3. Catt

    Catt Guest

    First things first,American HO scale is not half O scale.HO=1/87th O=1/48th. I think the percentage of increase is 54%.European O scale is 1/43 which is much closer to twice the size.
  4. cidchase

    cidchase Active Member

    HO plan enlarged to 181.5% = O plan

    The ratio is 87.1 / 48 = 1.815 (rounded)

    A better plan would be to take a nice set of O gauge plans and shrink them in the copier to 55%.

    (Just my personal opinion) :D
  5. spitfire

    spitfire Active Member

    Perfect! Thanks. I hear what you're saying about O scale, but these are plans for trolley wire supports created by my friend Chris who models in HO. I'm posting them on the website and I want to make them accessible to all scales, for all those traction nuts out there!

    :eek: http://members.rogers.com/urbanscene/

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