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Originally Posted by Taxi645
1 Either the downforce increase came from improved lift/drag ratio
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Mark Hughes excellent race report seaams to confirm this:
https://www.motorsportmagazine.com/reports/f1/2019-spanish-grand-prix-report
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There were three extravagant vortex generators within that hideous-looking complexity where before there’d been one, suggesting that a major unblocking of the airflow passage up and/or downstream had been achieved (enabling extra vortices to work in creating more downforce without losing the advantage of that with more drag). The implication was the speed of the flow down the lower flanks of the bodywork and through the gap between the rear wheel and diffuser had been significantly increased, pulling harder on the underfloor flow and increasing downforce that way. It was one of the most powerful aero upgrades Merc has ever conceived, reckoned to be worth at least 0.3sec.
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