Re: [T2] Anyone Build Their Own Air Dam?

[Mfitzsim@xxxxxxx]

In a message dated 9/26/01 8:40:43 PM Pacific Daylight Time, 
tullio@xxxxxxxxxxx writes:

<< I understand that the whaletail spoiler on many 911s provides considerable 
downforce at normal highway speeds.  Many cars in the 70s received small 
add-on air dams to improve highway stability. >>

Todd, (and any aerodynamics buffs that might be out there)

It may have a bigger impact on the handling of a lighter weight vehicle.  Is 
there a correlation of sorts or curve between vehicle weight and the speed at 
which it becomes airborn if the shape of the compared vehicles is the same?

On a heavy vehicle like a bus would a dam improve fuel economy any?  Or would 
you be better off "smoothing" the bottom of the bus with flat panels to 
minimize turbulence?

mark

mark fitzsimons 
mfitzsim@xxxxxxx
Portland, OR