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Williams FW29 - sidepod slits 30 June 2007

For France, a series of curved slits has been added to the FW29's sidepods, just inside the radiator chimneys. However, the change is not primarily cooling-related as you might expect, but aerodynamic. The hot air exiting the slits lowers the air pressure in this area and hence increases the speed of airflow. This helps to better direct it towards the winglets in front of the rear wheels and to free up the portion of airflow nearer the centre of the car so as to maximise the efficiency of the rear wing. In essence, another small detail that helps to perfect the car's overall aero balance.