Quote:
Originally Posted by Piwoslaw
My guess is that since semi's have air dams in the front, often quite low, then adding a belly pan would see only minimal gains.
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We did the one in the BulletTruck mostly to duct air to the cooling system package.
But I'm pretty sure it help on the aero side as well.
We have run SolidWorks CFD on simulated full belly pans on both the tractor, and the trailer believe it or not, and it helped the aerodynamics tremendously.