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Reply to "60" Radius and 64" radius clearance test"

The old swing of the curve test ... NMRA has standards for such things .....but I think they were only considering 1/4" scale .......put a 17/64ths  piece on the same curve ...the gap narrows considerably.....so test with the biggest thing you have then add a bit .... 

As a collector of vintage O scale ... I run both 1/4" and 17/64ths ....all clearances are done with a Mini-Scale  17/64ths Pullman ...biggest thing to roll the rails .    Here are photos  to compare gap with 1/4" VS 17/64ths 

Cheer Carey 

 

clearancesquarter inch cars17 64ths cars

 

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  • clearances
  • quarter inch cars
  • 17 64ths cars

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