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
----- Original Message -----
From: "Jonathan Amo" <webmaster@landracing.com>
To: "LSR List" <land-speed@autox.team.net>
Sent: Friday, January 03, 2003 7:47 PM
Subject: wisdom or not wisdom
> List,
>
> Im out here, just reading and accepting and analyzing what I read as in
does
> it make sense and can I contribute or take the information and put it to
use.
>
> I do have a question as to streamlining.
>
> Jack C I really want you to pop in about this subject.
>
> We all have heard that a teardrop shape is "sapposed" to be the most
> areodynamic shape. Even thinking about one of those rainbow trout. No
Keith
> not those brown trout you probably fish for. At what point does this shape
not
> be benefit. What length in otherwords would this shape be or not be
> beneficial? 5ft? 10ft? 25ft?
> I have heard that the air coming around the subject if to short will
"collide"
> at the rear of the subject, if it does not have time to smooth out. So how
> long does it need to smooth out?
>
> Anybody have any beneficial info on the subject.
>
> Jonathan
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