@Dave Olson posted:We're doing a Ryan & Dave show tomorrow and we'll talk about this engine if anyone is interested.
Can't make the live show but I'll definitely watch it later if it's uploaded.
@Big Jim posted:They do make a noise. As so many other locomotives, the A's had an injector on the engineer's side and a cold water pump for the feedwater heater on the fireman's side.
I have a recording of 1218 in service in the late fifties sitting still and you can hear the injector, stoker and air pumps working.
So we **could** find out the mystery feature is an increase in the number of available sounds. Good to know.