Thread: Saw an 'Air Dam' under a Tractor Trailer
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Old 05-21-2010, 01:11 PM   #3 (permalink)
stevet47
Eco Dreamer
 
Join Date: Mar 2009
Location: Exton, PA
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I saw a tractor trailer the other day with vortex generators up both sides and across the top of the trailer.
Glad to see they are trying to improve their FE.
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