Sep
25

RP25 & ScaleSeven Wheel Comparison

JohnC on September 25th, 2008

RP25 and ScaleSeven Wheel Comparison
This shows a comparison of the NMRA RP25 110 wheel profile commonly used for O14 and the ScaleSeven wheel profile for standard gauge locos, established from published web sources.
Given that most narrow gauge locos had a similar flange profile to standard gauge locos often with a slightly narrower tread, the profiles [...]

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