The boys in the  shops have been doing circus wagons for a while and determined that circuses and carnivals just can't pull up to an outlet and start the show.  They need power.  Most shows would have more than one generator/power wagon.  I can remember these units at the county fair when I was child.  A couple of things I remember was the diesels sounded like they were running wide open and were very loud.  There were also cables snaking everywhere.   This is one of most ambitious models we've designed so far.  These can be built a number of ways.  Check the pictures.  The first version is what we call riding. All of the doors are sealed up for travel on the circus train,  admittedly it hides all the detail of the diesels and generators, but that would be prototypical.  A variation of that would be all of the doors off to show the diesels and generators.  It's not prototypical but dang it looks cool.  The last version is with the doors open.  This would be typical when in use.  Each model comes with two roof sections one with two mufflers and the other with one if the user chooses to only use one diesel/generator set.  This unit has the connection panels in the center  of the wagon.  It's designated unit 1.      It will look great in a circus parade ( well maybe not,  this is a utility wagon but it has to get to the circus lot somehow) ,  scene or riding a circus train.