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Mercedes F1 W04 - front wing vortex generators 23 November 2013

For the United States and Brazil, Mercedes used a front wing featuring a small refinement over earlier iterations: two small vortex generators (indicated by the red arrows) that help control the airflow over the multiple flaps in the wing. After fitting the revised wing to their cars in Friday practice in Austin, Mercedes carefully monitored the flow of air over the elements using flo-vis aerodynamic paint.