Go see my web site. I think there is a coastdown method there. What you get
is an overall drag coefficient. Need stop watch and just some reasonably
flat track. Accel to maybe a 100 then coast down to 80 or so. Need to know
speed at start and end (IIRC).. I think we just about beat this to death
some time ago.
mayf, http://www.teknett.com/pwp/drmayf/analyses.htm
----- Original Message -----
From: "John Beckett" <landspeedracer@msn.com>
To: "List Land Speed" <land-speed@autox.team.net>
Sent: Saturday, January 25, 2003 4:52 PM
Subject: Aero Testing
> OK here is another idea for testing your vehicle aerodynamics. What about
a
> coast down test? I know little about this so my questions for you aero
guys
> are:
>
> What useful data can be obtained from this type of testing?
>
> What type of equipment would be needed to make it work properly?
>
> How much of a distance is needed and what sort of speed is required to get
> worthwhile data?
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/// what is needed. It isn't that difficult, folks.
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