Quote:
Originally Posted by winkosmosis
When neither gets aerodynamic treatment like radiused edges, I think it makes sense that the conventional would be more aerodynamic than the cabover. The flat front COE might have a bubble, but the conventional has a smaller bubble, then another bubble forming a ramp between the hood and the windshield.
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I believe Renault's COE holds the record for low drag in a tractor-trailer.With boat tail,it's Cd falls below 0.30.