Assume that Fig. 17.11 shows the performance of the wing on the race car shown in Fig. 17.15. Note that it is mounted in the inverted position, so the lift pushes down to aid in skid resistance. Compute the downward force exerted on the car by the wing and the drag when the angle of attack is set at 15° and the speed is 25 m/s. The chord length is 780 mm and the span is 1460 mm.
FIGURE 17.11 Airfoil performance curves.
FIGURE 17.15 Problems
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