Another set of 4 GE AC4400CW locomotives power this train, 17,600 Hp at 0.7 Mph, safety rules prohibit us from leaving the bus, she opens the door and I sit on the bottom step for a clear view, I expect a roar and dust from the coal flowing into the cars, neither happens, it is quiet and the air is clear, everything is carefully controlled, there is indeed coal in the cars when they come out