Re: Key RGS #42
Jonathan, I once owned one of the Key RGS 42s. I am only aware of one Key run of that loco.
It had a lot of problems, so I got rid of it. The main problem was the motor location inside the front of the boiler and anchored to the boiler instead of the frame. The result was a near impossibility of aligning the frame to boiler connection to get the worm to properly mesh with the gear. It never ran smoothly. Another problem is it didn’t have sprung drivers. The motor was a Nimiki which is a coreless type, but which was maybe underpowered.
Later runs of Key HOn3 locos did have sprung drivers and had their motors mounted more conventionally on a pivot plate on the frame. The ones I have are all better runners than those with unsprung drivers.