Shape. Wing shapes are different and are classified by their dihedral (slant), taper
(diminishing width), and wingtip shape. A wing may have any of the following
Slant. The vertical angle of the wing with respect to a horizontal line drawn
through the fuselage is the wing slant (Figure 8).
Taper. Aircraft may have the leading, the trailing, or both edges of the wing
tapered, or the wing may be untapered (Figure 9).