land-speed
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Re: Aero Testing

To: "DrMayf" <drmayf@teknett.com>,
Subject: Re: Aero Testing
From: "John Beckett" <landspeedracer@msn.com>
Date: Sun, 26 Jan 2003 11:48:55 -0500
OK, I do vaguely remember we beat it around some, but did we determine if it
was a good idea or a bad one?

John


----- Original Message -----
From: "DrMayf" <drmayf@teknett.com>
To: "List Land Speed" <land-speed@autox.team.net>
Sent: Sunday, January 26, 2003 10:34 AM
Subject: Re: Aero Testing


> 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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