Quote:
Originally Posted by Hersbird
Frontal aera is the frontal aera doesn't matter the shape. So an F150 has more frontal aera and therefore the trailer is better protected and causes less of an effect than it you were towing it with say a Sonic.
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I understand what you are saying overall but I’m not sure if I fully agree with your first statement. If a cube and teardrop shape have equal frontal area, the teardrop shape will have significantly less drag.
Granted, the CD difference between a modern full size truck and a Jeep Grand Cherokee SRT is pretty minimal I’d think. I assume that is what you were getting at.
The airflow over a modern truck with a tonneau cover appears to leave the vehicle mostly just over the tailgate. Pulling a standing height 7’ wide cargo trailer, the airflow over his truck is running into about 30 sq ft of “new” frontal area. That has to hurt.
George