Oh SH*T the Weather Vane Theory is back.. personally I like the hammer and
arrow one better LOL.. All serious aero work is based on weather vanes
hammers and arrows. I got this bridge and you look like an enterprising guy
that could build a toll both and make a lot of money if you bought the
bridge. All joking aside it might work for a symmetrical missile in free air
with no ground effect but that is not a car that is under driver control.
Dave
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net]On Behalf Of DrMayf
> Sent: Thursday, April 21, 2005 8:03 PM
> To: Keith Turk
> Cc: land-speed@autox.team.net
> Subject: Re: Center of pressure?
>
>
> Ughhh, tilt. That method may work for a model rocket but it does
> not account
> for the upper surfaces of the car nor those under the car nor the
> accounting
> for spoilers.
>
> mayf,out in Pahrump.
> ----- Original Message -----
> From: "Jim Dincau" <jdincau@qnet.com>
> To: "Keith Turk" <kturk@ala.net>
> Cc: <land-speed@autox.team.net>
> Sent: Thursday, April 21, 2005 2:46 PM
> Subject: Re: Center of pressure?
>
>
> > Keith,
> > Here is what an aero engineer at Lockheed told me.
> > What you want to know is the lateral center of pressure (as in Yaw).
> > Take a picture of the car from the side with a telephoto from enough
> > distance and a low enough angle to give you a good profile. Enlarge
> > it to a convinient size. Paste it to thin cardboard and cut out the
> > outline of the car. Ballance the cutout on a razor blade (blade paralell
> > to a fuselage station plane). This will give you the approximate lateral
> > center of pressure. This is as close as you can get without some
> > serious wind tunnel or CFD time.
> > Jim in Palmdale
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