Unless you have addressed all other more important forms of drag, dimpled tape
will likely not do you much good.
If you are interested in research on ground clearance and smooth bottom
undertryas, especially for full sized
cars, then look up SAE/PT-78/16/$02.50 by F.N. Beauvais, S.C. Tignor and T.R.
Turner at the Society of Automotive
Engineers. It will give you all you need to know about these subjects.
John Goodman
Date: Thu, 22 Feb 2001 07:47:44 -0800 (PST)
From: Dick J <lsr_man@yahoo.com>
Subject: Aeronautical question for Keith, MAYF and other engineers ??
Keith,
After all our jawing and joking about dimple tape
last week, your belly pan question got me
thinking=(DANGER! Danger, Will Robinson!) Do I
have this backwards or is this a valid theory?
If the entire belly pan was dimpled, and the top
of the car was smooth, there would be less drag
on the belly pan than on the top of the car,
mimicking the same effect as more air flow under
the car, resulting in an effect like an upside
down wing - which would add downforce as speed
increased. Or did I get that backwards, and the
car would take off like a frizzbie?
=====
Dick J
In East Texas
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