Assertion: airfoil's thickness | /r/HasProperty | defined on the wing area
Facets:
Source sentences:
text: You can change the value of lift and drag by varying the speed of the airplane, the altitude which affects the air density, the angle of attack of the airfoil, the camber, which is the curvature of the airfoil, the thickness, which is defined on the wing geometry web page, or the wing area.