|
The 30% fuel mileage loss held true for the F150 with a topper pulling an 18' travel trailer, 8' wide, 10'6 tall at 60 mph. Frontal area killed the mileage as it was 4' higher than the tow vehicle, as did mountain roads.
Hence looking at a trailer whose frontal area does not exceed the tow vehicle, would have thought the loss would be less than 30%.
I have thought of building my own box to go on a small flatbed trailer, wheels enclosed in the body, not extending out past the body as in a cargo trailer. If I did so, design would be like the previously mentioned airstream, giving me 6' headroom inside, so then extending above the tow vehicle.
|