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from what i gather form posts of people who seem to be more informed on the subject than i am this type of grill would not deliver what it promises...
that's a pitty as the original concept was simple enough and with a relative detailed description so that a copy could be made.
while i can understand smoke streams are easy to misinterpret and some the grill is basically a stack of spoilers; so that could explain the lift reduction, how might they have arrived at the 12% drag reduction figure?...
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