Before revision: The main wings of the B-17 consisted of an "inboard wing" mounted to the fuselage and mounting the engines and flaps, and an "outboard wing" joined to the inboard wing and carrying only the ailerons.
After revision: structural panelstructural panelThe main wings of the B-17 consisted of an "inboard wing" mounted to the fuselage and mounting the engines and flaps, and an "outboard wing" joined to the inboard wing and carrying only the ailerons.