One of the primary problems a Formula 1 design engineer faces is how to create sufficient downforce in a wing while at the same time reducing the drag that the downforce ultimately creates. The downforce helps the car negotiate the turns at a faster speed, and the drag slows the car and reduces the top speed down the straights. It was thought by many that a team cannot have both. Most teams spend a lot of time and money deciding how much downforce to use verses how much time is lost to drag. This is what is written in the rules: 3.9.8 Any part of the trailing edge of any front wing flap may deflect no more than 5mm, when measured along the loading axis, when a 60N point load is applied...
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