<VV> aero drag

[James Davis]

Sorry the Cd if a flat plate is 1.28....  or at least it was when I got my 
masters in 1962. A .45 cal projectile (bullet) has a Cd of 0.295.  Not all 
things in aerodynamics are intuitively obvious.  That's why the Von 
Karman  vortex street revolutionized car body design.  Greenbriers/Corvans 
have a Cd around 0.070 and  Rampsides/Loadsides about 0.80 based on my 
modeling.
Jim Davis

At 04:54 PM 12/22/2004, AeroNed@aol.com wrote:
>In a message dated 12/22/2004 4:18:58 PM Central Standard Time,
>ddpleau@earthlink.net writes:
>
>"FC's  have the ballistics of a brick".
>
>
>One can think of a vehicle's drag coefficient as being a measure of the
>shape to that of a flat plate or wall. For a FC, or similarly shaped 
>vehicle,  the
>drag coefficient would be real close to 1.0...
>
>Ned