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MOONs
Larry Shinoda tested 'MOONs' during R&D of the 1982 Firebird Trans Am,at Lockheed's Marietta,Georgia,full-scale wind tunnel.
*a ventilated flat wheel disk cut drag 0.018,compared to an open wheel.
*a sealed flat disk,0.024
*a MOON,0.027.
*With MOONs the TA has Cd 0.287
*With open wheels,Cd 0.314
*Compared to zero wheel covers,the MOONs give a 8.6% drag reduction.
*And roughly,a 4.3% mpg advantage at best-case-scenario.(highway only!)
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
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