[skyking]

I got hit by some TANSTAAFL when looking at the combined rig. I'd better use 55 sq ft as a combined frontal area, since the tires on truck and trailer will not track in a line and they are so far apart.
I think the real shocker is what I am coming from when I get this done. Current rig is a whopping 17,000 pounds combined, 90+ square foot frontal, tapering to a 70+ square foot tail over a complete crap-storm of junk on the roof, with side awning and legs. Not faired to truck.
I have all but abandoned any aero mods to it, as I think this will be replacing it in the next year or so. About the only effort that will translate from one to the other is the truck mounted fairing. I can build that to fit the new trailer and it would help the old one as well.