We are pressuring the Brain cells here... ( I ain't got many of these )
All things are aerodynamic bodies called AIRFOILS.... if we really want to
get fancy we can have NASA give us a Number for our Airfoils.... which
happen to be car bodies.... ( Symantec's.... but I understand how one could
be confused without the clarification )
What is interesting to me.. and John Beckett I think...is that we don't
know where the center of Pressure on our cars is.... We don't know or
understand exactly what Our Cars are doing on the course... So to get that
information we then need to take these things to a Wind Tunnel to come up
with exactly what or where these forces are applied.
Getting fancier then that... how bout changes.... in attitude of the car...
simple 1/4 inch changes in front air dam's or degrees of spoiler and the
effect of downforce on the car....
The goal here is to have Traction to use the available Horsepower.... but
no more then is needed.... to have a car that weights virtually 5lbs more
then is required.... not an ounce more or less....
There are some gages like the Strain gages that could come up with this
information... or like in the case of my Air Ride I can read changes....
but without a recording device it's all moot.... as those numbers don't get
recorded in the heat of racing.... and are subjective anyway...
Tom... I agree totally.... Weight is only good when it's NECESSARY....after
that it's something that makes it all work harder... and that isn't good.
I liked your spoiler design.... who knows if it worked? looked cool that
count in there anywhere?
Keith
----------
> From: Clay, Dale <Dale.Clay@mdhelicopters.com>
> To: 'kturk@ala.net'; George Mitchell
<americanpartnerinrussia@starpower.net>; Clay, Dale
<Dale.Clay@mdhelicopters.com>; FastmetalBDF@aol.com;
landspeedracer@email.msn.com; Flowbench@aol.com; lsr_man@yahoo.com;
fosterap@flash.net
> Cc: land-speed@autox.team.net
> Subject: RE: Center of Pressure
> Date: Wednesday, January 03, 2001 10:12 AM
>
> I think if you change "airfoil" to "aerodynamic body", we're there ...
>
> -----Original Message-----
> From: Keith Turk [mailto:kturk@ala.net]
> Sent: Wednesday, January 03, 2001 9:12 AM
> To: George Mitchell; Clay, Dale; FastmetalBDF@aol.com;
> landspeedracer@email.msn.com; Flowbench@aol.com; lsr_man@yahoo.com;
> fosterap@flash.net
> Cc: land-speed@autox.team.net
> Subject: Center of Pressure
>
>
>
> The term center of pressure is defined by " the point at which all
> aerodynamic forces are focused"
>
> in other words the Point within an air foil that all forces are
applied...
> The one central focus of all aerodynamic actions for a given airfoil....
>
> Hmmm Keith
> ----------
> > From: George Mitchell <americanpartnerinrussia@starpower.net>
> > To: Clay, Dale <Dale.Clay@mdhelicopters.com>; FastmetalBDF@aol.com;
> landspeedracer@email.msn.com; Flowbench@aol.com; lsr_man@yahoo.com;
> fosterap@flash.net
> > Cc: kturk@ala.net; land-speed@autox.team.net
> > Subject: RE: Ballast & Handling
> > Date: Wednesday, January 03, 2001 7:05 AM
> >
> > I have heard this phrase few times and I think I understand it but can
> > someone give a more complete explanation of aerodynamic center of
> pressure ?
> > George in DC
> >
> > -----Original Message-----
> > From: owner-land-speed@autox.team.net
> > [mailto:owner-land-speed@autox.team.net]On Behalf Of Clay, Dale
> > Sent: Wednesday, January 03, 2001 1:27 PM
> > To: 'FastmetalBDF@aol.com'; Clay, Dale; landspeedracer@email.msn.com;
> > Flowbench@aol.com; lsr_man@yahoo.com; fosterap@flash.net
> > Cc: kturk@ala.net; land-speed@autox.team.net
> > Subject: RE: Ballast & Handling
> >
> >
> > Right you are. Anything that moves MUST obey the laws.
> >
> > As far as Dick J's question about longer wheelbases, I suspect that
just
> > slows the yaw down to where the driver would have a better chance of
> > catching it. You could add areo surfaces towards the rear (not clear
on
> all
> > those rules) to move the Cp (center of pressure) aft.
> >
> > Dale
> >
> > -----Original Message-----
> > From: FastmetalBDF@aol.com [mailto:FastmetalBDF@aol.com]
> > Sent: Wednesday, January 03, 2001 8:24 AM
> > To: Dale.Clay@mdhelicopters.com; landspeedracer@email.msn.com;
> > Flowbench@aol.com; lsr_man@yahoo.com; fosterap@flash.net
> > Cc: kturk@ala.net; land-speed@autox.team.net
> > Subject: Re: Ballast & Handling
> >
> >
> > Dale, You are correct . Even if you throw a dart backwards
......
> > it reverses itself in flight and the heavy end ends up in front .
> Arrows,
> > darts,
> > and racecars are all subject to the laws of physics, and we have to
> > build in accordance with these laws as they are not about to change .
> > BDF
> > PS : and planes and helicopters, too ...... right ?
> >
> > also : GRAVITY IS ALWAYS ON THE JOB
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