Home > aerodynamic, Formula 1 2013, Lotus E21 Renault, Technical Innovations > Lotus E21 – Innovative serrated bargeboards and middle zone updates before Melbourne

Lotus E21 – Innovative serrated bargeboards and middle zone updates before Melbourne


        Lotus literally works overtime to constantly improve performance and thus frequently presents new aero components on its cars . This time several middle zones updates followed the introduction of a modified front wing at last pre season test in Barcelona . The upgrade package included apart from innovative serrated bargeboards, a relocated closer to the car body sidepod panel ( yellow double-edged arrow shows the volume between the panel and the car body) and an additional element which leans outwards, inspired by Sauber’s former cars  .

Launch spec – the highlighted in yellow “π shaped” tab helps to drive air upwards and away from the car to seal as possible the underbody aerodynamics .

Launch spec – the highlighted in yellow “π shaped” tab helps to drive air upwards and away from the car to seal as possible the underbody aerodynamics .

   Barcelona Test on March – the yellow double edged arrow shows the volume between the panel and the car body which is now decreased compared to previous version , all changes are highlighted in orange color

Barcelona Test on March – the yellow double edged arrow shows the volume between the panel and the car body which is now decreased compared to previous version , all changes are highlighted in orange color

 

      The new philosophy is to speed up the air flowing through this zone, due to now less available volume,  while the serrated bargeboards bleeds portions of air to cut drag . The total volume of air may now be lesser but the increased speed counters this negative effect . The low height and leaning outwards extra vane helps to decrease further drag and provide a cleaner airflow towards the rear of the car . All changes aim to create more downforce especially when the cars changes directions .

       Serrated bargeboards may look brand new and innovative but spring their origins a decade back to Ferrari saw-tooth bargeboards .

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