Howard & list;
I think the Kamm theory said about the same thing-- if you can't extend the
tail far enough for it to be an optimum departure angle, it's better to cut
it off abruptly. (or something to that effect)
Regards, Neil Tucson, AZ
-----Original Message-----
From: Nafzger [mailto:nafzger@vtc.net]
Sent: Friday, January 03, 2003 9:13 PM
To: Jonathan Amo; LSR List
Subject: Re: wisdom or not wisdom
Jonathan,
I have an aerodynamic book that says" with a given nose shape and a given
tail shape, adding additional length only adds skin friction drag"
I believe the book title was " Automotive Aerodynamics by Joseph Katts. They
also talk about a convergent angle on the rear of the car should not exceed
7 degrees at any point and show examples of CD's of different shapes. A 3 to
1 teardrop has a significantly higher Cd if you put the point forward which
implies that getting out of the air is more critical than getting in it.
Take it for what it cost you.
Howard Nafzger
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