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What is this for ?
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Posted 9/16/2020 18:49 (#8499336 - in reply to #8498997)
Subject: RE: What is this for ?

SE Michigan
You are correct....... I did a study in one of my automotive engineering class on vehicle aerodynamics. I don't recall the numbers, but if I recall the drag from the underside of the vehicle contributed about 25-30%. I had that class in 1987....... Not saying it "could" happen on a truck, but manufactures struggle with reducing the drag on the underside but not making it "too slick" or you will have a wing effect, that will actually lift the car of the ground at high speed.
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