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covers
*going over the paper,it looks like only 'flat' discs were investigated.
*convex discs (MOONs) have lower drag than flat discs (I'll have to did for that data)
*when the Spirit of Ecomodder.com video is available,you'll be able to see the turbulence within the tire sidewall bulge-generated void, present with a flat cover,but mostly eliminated with the MOON-type cover.
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
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