Aircraft engine pylon to wing mounting assembly

An aircraft wing assembly comprising an aircraft wing and a pylon mounting assembly for mounting an engine to the aircraft wing, wherein the pylon mounting assembly comprises:

• an upper pylon connection member, and
• a lower pylon connection box, wherein
• the upper pylon connection member and the lower pylon connection box respectively define opposed lower and upper mounting surfaces which establish a mounting plane that slopes downwardly and rearwardly relative to aircraft travel direction;
• and
• at least one connector assembly frangibly connecting the upper pylon connection member and the lower pylon connection box to one another at the opposed respective lower and upper mounting surfaces thereof so as to allow separation of the lower pylon connection box from the upper pylon connection member in response to a separatory load in excess of a nominal design load.