Quote:
Originally Posted by Cd
I'm puzzled because the smooth wheels helped the drag yet the spat did nothing for the drag.
It sounds as if you mean that the front airdam keeps air from colliding with the tire, spoiling an opportunity for the spat to function, yet the wheel covers ( Moon discs ) functioned as they did, so plenty of air was getting to that area.
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Without the wheel being even with the outer edge of the spat,the forward face of the spat is being attacked by the airstream.It may have a local Cd as high as 1.11 right there,with full separation,and turbulence following it far down the rocker area.
