HOSCALE
HO scale
HO or H0 is the most popular scale of model railway in the world. According to the NMRA standard S-1.2 predominantly used in North America, in HO scale, represents 1 real foot ; this ratio works out to about 1:87.1. According to the MOROP standard NEM 010 predominantly used in Europe, the scale is exactly 1:87. In HO, rails are usually spaced apart which models the standard railroad gauge of .The above text is a snippet from Wikipedia: HO scale
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