15 Oct 2012
Overpass
I have been working on the woodwork for the North end of the fiddle yard and the overpass for the reversing loop.
The reversing loop itself has two different gradients - shallower on the way up - and steeper on the way down - necessary to give good clearance across the tracks but also not kill the locos when pulling long trains.
The up gradient is about 1 in 60 with approx no gradient at all around the curve of the overpass.
Curves and gradients are really hard for the rolling stock to cope with.
The overpass sections have been cut out of 12mm ply with a jig saw after printing out the template from xtrackcad.
