etermine the Maximum Range (R) for the Gulfstream G550 at 41000 ft. The weight of the plane when full of fuel is W = 91000 lbs, and it holds 6165 gal of fuel (6.67 lbs/gal). The wingspan is b = 91.5 ft and the wing platform area is S = 1137 ft2. The Oswald efficiency factor is e = 0.9 and the zero-lift drag coefficient is CD,0 = 0.0165. The Thrust Specific Fuel Consumption rate is ct = 0.6414 lb/lbhr. (Hint: See Example 6.20)