Re: Unusual but typical photo of a gallows turntable

Having lived with the NSRM table since it was built in 1983 we find the following; If there is a load on the out side ring rail then the table will be almost impossible to turn, The outer ring rail supports the end of the table during loading and unloading only, when a load is balanced on the small (inside) ring rail very little effort is needed to move the table,and cars which load the ends of the table are more difficult to turn than locomotives which distribute their load more uniformly over the span.
Also being a predominately wooden structure it changes with the seasonal variations in average humidity requiring adjustments in the spring and fall.

CCdW
NSRM