The Gulfstream G550 has a wing area of S = 105.6 m2 and an aspect ratio of 7.36. Assume an Oswald efficiency factor of e = 0.9. The jet is cruising at 12500 m and flying at a velocity of v = 250 m/s. Determine the induced drag (Di) when the total weight is W = 34000 kg-force (hint: determine lift and drag coefficients first, See Examples 5.25 and 5.26)