One of my followers from the North East part of Arkansas sent me these pictures asking if I had any idea what this machinery might be on this train. They say the train is parked there. It has 3 engines in total, 2 in front 1 in rear. There is some sort of power going to the square boxes as they are making some sort of noise. I have no idea what they may be so here they are for you guys to see and hopefully someone else may know. Tried to give some different views of close up and size comparison. I myself am wondering is the separate round parts may connect to the vent looking part on the Box style parts?