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Museum Discussion / Re: Visting Maine 2 footers to the WW&F!
« on: December 07, 2008, 05:27:13 PM »
The number of a switch (turnout) is the frog angle, expressed as a ratio. A #8 frog angle results in 1 unit of divergence in 8 units of run, measured on the frog centerline.
Greg B.
Greg B.