Quote:
Originally Posted by some_other_dave
I'm glad that these are finally catching on. I remember reading about wind tunnel tests that NASA did in the late 1980s or early 1990s where they found that flaps sticking out the back of a trailer like this were something like 80%+ as effective as an actual boat-tail on the trailer.
-soD
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Got a source on that? Interesting.
Good spotting, crews. I've been on the lookout as well.