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With Formula Student cars less sensitive to drag, generating wings with large amounts of downforce is relatively easy. However, the trick is to design both the front and rear wings with equal amounts of downforce to achieve an Aerodynamic balance, usually in the order of 50/50.
‘The rear wing is the device that limits you in terms of total downforce because when the air reaches the rear wing, it has already lost large amounts of kinetic energy. That makes it very hard, especially behind the driver and the roll hoops, to generate high amounts of downforce. Also, because the rear wing is much higher off the ground, it is more difficult to generate extra downforce. You need a large rear wing to generate the same amount of downforce as with a small front wing,’ highlights Pfeiffer. ‘That is why we started developing the rear wing first, and once we achieved the maximum downforce possible, we then designed the front wing to equal the rear wing’s downforce. We could easily achieve huge amounts of downforce at the front, but that would destroy our overall balance, making the car undriveable.’ Once a balance has been struck between the two ends of the car, the wings can then be refined to improve the flow to the other aero devices such as the undertray and diffuser.