[Christ]

Originally Posted by 5.0 Junkie

Sorry on the terminology. A/c unit doesn't run during drives, but I start it to get the unit warm or cool as I have to do product demonstrations in there. It is somewhat aero, but I can likely improve a bit.

I think camper shell first and deflector on it if needed. Skirts on side fenders and possibly deflectors in front and rear of tires. How would I "smooth" the corners/top of the trailer? I'm also going to evaluate a boattail style rear on the trailer somehow.

Boat tail nose as well. But, if you can get the topper and side spats worked out, it probably won't be so much of a problem. The idea is to keep the flow as straight as possible, so it's not "ramming" into things. If you can divert the flow so that it can make a basically straight path between the truck and the trailer, that's all you really need.