With its crossheads, connecting rods and valve gear, a conventional steam locomotive has many external moving parts, which is part of their appeal - plus, of co

With its crossheads, connecting rods and valve gear, a conventional steam locomotive has many external moving parts, which is part of their appeal - plus, of course, the whole thing is a moving part. Some things just cannot be hidden away and you have to be careful - propellers, for example. The Roaring Camp railroad above Santa Cruz had a Shay locomotive in service when I visited a few years ago. https://www.roaringcamp.com/ https://www.roaringcamp.com/