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Proto:87 Standards |
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This is the complete standard in one page in millimetres only.
It makes a pretty good handout for clinics, exhibitions and so on.
Mail the sig coordinator for a Corel Draw version if you would like better print
quality. |
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The major dimensions for track. The page includes a
comparison to North American prototype, and to standard HO. Dimensions
are given in inches and millimetres. |
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The major dimensions for wheels. The page includes a
comparison to North American prototype, and to standard HO. Dimensions
are given in inches and millimetres. |
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The detailed dimensions of the standard Proto:87 wheel
profile. This profile is a scaled version of the British BS275 standard
wheel. Joe Brook Smith wrote a good article
in Journal number 5 on this subject.
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