Re: Shay curve radius question

A pre-1906 Lima catalog gives the following information:

All Class "A": 50' radius

All Class "B": 75' to 100' radius, depending on subclass

All Class "C" 100' radius

Common sense and the catalog as these are maximums; operating at maximums will increase the rate of wear and tear. I would recommend a 20% "fudge factor" for safety and cutting down on wear and tear.

Maybe if I knew which Shay you are talking about, I could be more specific. Identification of which CRRM you are affiliated with would be equally helpful. At the Colorado Railroad Museum, the Shays will easily handle any curve on the property.

Mike Rowe
Registered Shay-aholic