An aircraft flap comprising: nested layers of composite material including an inner layer , a middle layer and an outer layer ; the inner layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel , an intermediate panel that extends upwardly from the lower panel and an upper panel that extends from the intermediate panel over the lower panel, the lower panel , the intermediate panel and the upper panel extend around a hollow interior volume in the folded over configuration of the inner layer ; the middle layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel of the middle layer that lays over the lower panel of the inner layer , an intermediate panel of the middle layer that extends across the hollow interior volume in the folded over configuration of the inner layer , and an upper panel of the middle layer that lays over the upper panel of the inner layer ; the outer layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel of the outer layer that lays over the lower panel of the middle layer , an intermediate panel of the outer layer that extends over the intermediate panel of the middle layer , and an upper panel of the outer layer that lays over the upper panel of the middle layer ; a plurality of holes through the lower panel of the middle layer ; a plurality of holes through the upper panel of the middle layer ; wherein each hole of the plurality of holes has a polygonal configuration, edges of the plurality of holes being positioned parallel with fibers of the composite material of the middle layer . nested layers of composite material including an inner layer , a middle layer and an outer layer ; the inner layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel , an intermediate panel that extends upwardly from the lower panel and an upper panel that extends from the intermediate panel over the lower panel, the lower panel , the intermediate panel and the upper panel extend around a hollow interior volume in the folded over configuration of the inner layer ; the middle layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel of the middle layer that lays over the lower panel of the inner layer , an intermediate panel of the middle layer that extends across the hollow interior volume in the folded over configuration of the inner layer , and an upper panel of the middle layer that lays over the upper panel of the inner layer ; the outer layer having a folded over configuration in the aircraft flap that monolithically forms a lower panel of the outer layer that lays over the lower panel of the middle layer , an intermediate panel of the outer layer that extends over the intermediate panel of the middle layer , and an upper panel of the outer layer that lays over the upper panel of the middle layer ; a plurality of holes through the lower panel of the middle layer ; a plurality of holes through the upper panel of the middle layer ; wherein each hole of the plurality of holes has a polygonal configuration, edges of the plurality of holes being positioned parallel with fibers of the composite material of the middle layer . <EOS>