Design Variable

Initial value

Optimal value

Aspect Ratio

5

4

Fuselage Length (m)

9.16

9.41

Wing Sweep Angle (˚)

35

34.62

Wing Area (m²)

14.57

10

Wing Taper Ratio

0.4

0.45

Cost(million CNY)

358.51

245.33

Lift-to-Drag Ratio

12

10.31

Empty Weight(t)

1.57

1.35