

| Subject: | Re: aerodynamics, was: 101 MPH Vanagon! |
| From: | Al and Sue Brase |
| Date: | Sun, 17 Oct 2004 13:47:35 -0500 |
Actually,
Very early Porsches 356 and 356A were very good. Some Kamm tails of
the 60's mad things better, too.
Drag is actually a product obtained by multiplying 2 numbers:
frontal area X Cx (coefficient of drag) to get a total drag number.
So, a Vanagon DOES have a larger frontal area than a T2 and have more drag.
Al Brase
Steven Dodson wrote:
>This doesn't surprise me, seeing that convertibles have the worst
>coefficient of drag of nearly any vehicle. The swept windscreen crates a
>negative pressure behind it and the open cockpit creates tons of big
>turbulence. The pointiest front means nothing if you don't deal with the
>vortex in the rear. The Alfa Duetto Coupe with headlight covers would be
>another story altogether; very aerodynamic. I can see how a wing forcing air
>behind the Vanagon would improve it's Cd. The skirts will only work well if
>you lowered the van and the skirts cover equally all around the van. Put
>belly pans on the Vanagon and that would improve the Cd even more.
>
>-Steven Dodson
>Kneeland, CA
>"Inga" the 87 Syncro
>
>
>
>
>>Date: Sat, 16 Oct 2004 14:05:59 -0700
>>From: Mike Miller <mwmiller@CWNET.COM>
>>Subject: Re: aerodynamics, was: 101 MPH Vanagon!
>>
>>
>
>
>
>>As I understood it way back in the day my Renault R -10 had a better Cx and
>>Ct than the Alfa Romeo spyder. Weird if true.
>>
>>
>
>
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