[Accrs-o] O Scale Dimensions

[ACCRS O Scale list]

I am working on a plan for a small O scale layout.  Could someone remind me
what the distance between track centers and what the vertical clearance
should be?  I have been using 4 inches for both.

Steve Bull

On Mon, Nov 8, 2021, 10:04 AM ACCRS O Scale list <accrs-o at mail.accrs.org>
wrote:

> Message From: Tony Long  tony.long at outlook.com
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> I have a question on O scale measurements and wanted to check with others.
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> Conversion – what is the correct conversion for 2 Rail 1:48 scale.  I’ve
> seen it listed as 1:43.5
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> Using that then the spacing between rails for 4’ – 8.5” comes to 32.99
> millimeters.   I don’t have any two rail O scale track here to check
> that.     Is that correct?    Using 1:48 comes to 29.90 millimeters.
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> Millimeters is what I want to sketch with.
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