How long a camper can I (should I) tow?

blt2ski wrote:
THe reason the OEM's use a low drag trailer, is the SAE specs DO HAVE a max frontal area for the trailers, depending upon the GVWR of the truck and combo. 80SQ ft IIRC for the full size rigs.

For someone to say, frontal area and wind drag is not important, they have the head somewhere where the sun does not shine! It is more important in most cases IMHO than actual weight!

Marty

I said more than once, frontal and side area is important...and IMO more so than weight. SO I hope this reply was not for me.

You also site things that no longer exist, so I'm not sure how that helps us here.

Third, you join the crown in posting inaccurate information. Its not that the SAEJ2807 spec doesn't mention frontal area, its that they state "MINIMUM's" on their standard trailer list and they are only used as "CONSIDERATION" (its a required consideration actually) propulsion testing. They do not apply to dynamic tests, this is stated multiple times in the spec.

Here's the definition of the standard trailer direct from SAE2807, and they go on to list some examples...but none of which are required to be used for any given test;