S-T-A-L-L Siroigh: Portion 6. Consider an aircraft with the lift curve shown below. The aircraft has the following data. Weight 20,000 lbs Wing Area - 340 ft Density -1.7556 x 10'slugft CLC max) 1.4 Airspeed = 242.4 knots (1 knot = 1.69 ft/s) 1.2 a. What is the lift curve slope of the 1.0 airplane in per radian & in per degree? @.8 b. What is the aircraft's angle of attack for 0.6 a steady level flight? @.41 0.2 c. What is the stall speed? 0 2 4 6 8 10 12 14 16 18 d. If the aircraft dumps up sooolb of fuel ANGLE OF ATTACK ASTALL during its flight before landing, what is the stall speed at landing? 7. The airplane in problem 6 has a rectangular wing with the following data. Wing Chord 6 ft Parasite Drag Coefficient 0.015 Oswald Efficiency Factor 0.8 a. What is the Aspect Ratio (AR) of the wing? b. Find total drag at the steady level flight condition given in problem 6. c. Find the total drag at stall speed. d. Compare the parasite drag values in b&c, and the induced drag values in b & c. How are they different from each other? Discuss your results. e. Consider the aircraft slows down to 150 knots. Compare the parasite drag and induced drag values to those when it flies at 242.4 knots. AOR