Wing module having interior compartment

A wing module for an aerial vehicle in which the wing module has a flight configuration and an access configuration. The wing module includes an external wing skin having an upper skin with an upper surface having a curved profile and a lower skin forming the leading and trailing edges and having a generally planar lower surface. A hinge joint couples the upper and lower skins enabling relative rotation of the upper and lower skins between the flight configuration and the access configuration. The hinge joint is proximate the leading edge. An interior cavity is formed at least partially within the lower skin. In the flight configuration, the upper and lower skins have an airfoil cross section. In the access configuration, the upper and lower skins are split in the chordwise direction such that distal ends of the first and second skins are separated providing access to the interior cavity.