Date:         Wed, 11 Jun 2003 15:01:36 EDT
Reply-To:     FrankGRUN@AOL.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Frank Grunthaner <FrankGRUN@AOL.COM>
Subject:      Re: more on drag- More Details
Comments: To: albell@UVIC.CA
Content-Type: text/plain; charset="US-ASCII"

In a message dated 6/10/03 11:50:23 AM, albell@UVIC.CA writes:

<< Drag = 1/2 A * Cd * rho *vsquared

A = frontal area (any one know this for Vanagon/Westy?)
Cd = drag coefficient, I have seen 0.44 stated for Vanagon
rho = density of air
 >>

Alistair,

Greetings from Yungay Station, Antofagasta, Chile with relative humidity of
1.1 to 4.2%!

Some numbers! The drag coefficient (Cd) and frontal area (A) for the regular
Vanagon are 0.45 and 3.06 m2; for the later Vanagon with front spoiler lip,
the values are: 0.44 and 3.08 m2; for the Westfalia, the numbers are 0.52 and
3.17 m2; the later Westfalia with spoiler drops the drag coefficient to 0.51.
The European hightop camper (Dehler profile) takes the drag coefficient to 0.40
with a frontal area of 3.61 m2. So highest drag for the Westfalia and the Euro
hightop has essentially the same drag as the regular passenger version. BTW,
I have info somewhere that the drag coefficient for the syncros is higher by
about 0.03 but I can't place my hands on those notes just now.

Frank (Grunthaner)