I ditched my pickup and replaced it with a trailer.. but I would like to put a hard shell on top to protect contents from rain/snow. I am not looking for super aerodynamics but I would like to know "something" before I build. There will be 37" between the rear of towing vehicle and the front of the trailer. Should I try to keep the entire shell inside the aerodynamic template? ie: top profile
or should it be treated as a separate entity? In the bottom two profiles the red box upper left corner is the contact point with the upper template. I would like to know if the front edge of the trailer should start at the same level or below the template .. the last profile looks almost rectangular and if I just make a rectangular shape should I make sure the height starts below the template of the towing vehicle?
I just wanted to get some input from the forum before I start building
dmac257