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Old 08-18-2011, 06:25 PM   #5 (permalink)
aerohead
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1976

In 1976,Ford of Cologne,Germany released info on their 'Lamellar' grille which was passive,allowing full airflow at low velocities,the choking the flow down with internal stalling around the grille elements.They claimed a 12% drag reduction,which is the 'typical' drag of the entire cooling system.
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