Leading edge
Part of the wing that contacts the air first / From Wikipedia, the free encyclopedia
For other uses, see Leading edge (disambiguation).
The leading edge is the part of the wing that first contacts the air;[1][2] alternatively it is the foremost edge of an airfoil section.[3] The first is an aerodynamic definition, the second a structural one. As an example of the distinction, during a tailslide, from an aerodynamic point of view, the trailing edge becomes the leading edge and vice versa but from a structural point of view the leading edge remains unchanged.