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Old 11-16-2019, 12:38 PM   #12 (permalink)
aerohead
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flat/convex

Quote:
Originally Posted by NeilBlanchard View Post
I would settle for flat aluminum disks, but I am hoping for manufactured stainless units.
I believe that John Shinella's wind tunnel testing of wheel covers on the 1983,Pontiac Trans Am Firebird demonstrated the lowest drag with a convex,MOON type cover.They were his secret weapon to get below Cd 0.30.
Also,the dished surface will not 'oilcan' as a flat surface would,unless the flat disc were a thicker wall section,or had stiffeners on the inside surface.Southwest Airlines chooses them over a 'flat' wheel cover.
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