Quote:
Originally Posted by mwilliamshs
Yes, the size of the truck does matter. the 60 sq ft limitation is based on the total exposed frontal area, not the trailer overall. (I'll re-read the 2014 brochure linked to make sure I didn't overlook a big change) For years and years the Ranger limitation was trailer frontal area not to exceed that of the tow vehicle and F150 was tow vehicle +12 sq ft.
"Frontal Area is the total area in square feet that a moving vehicle and trailer exposes to air resistance..."
It's a combination of truck (Ford says the 2014 F150 is 36 sq ft) and trailer exposed frontal areas. So a bigger truck exposes less of an equally sized trailer, so a bigger truck can tow a bigger trailer.
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How does a bigger truck reduce the overall exposure to the air? You don't get to deduct the size of the truck from frontal aera just because it hits first, it's still part of the overall frontal aera.
If you could deduct the 36 Sq foot of even a f-150 then you could tow a semi trailer and be under 60 (basically 96 Sq ft total. The difference between a f-150 and f-250s frontal aera isn't that much anyway.
Look again at your quote, it is the aera the truck AND trailer expose.