DOWNWARDLY EXTENDING WING TIP DEVICE

摘要

An aircraft (1) comprising a wing (3), the end of the wing having a wing tip device (5), wherein the wing tip device comprises a moveable region (9) that is rotatable, about an axis of rotation (11) extending out of the plane of the wing tip device (5), between: (i) a high-altitude cruise configuration in which the moveable region (9) extends downwardly below the wing (3); and (ii) a ground-operating configuration in which the moveable region (9) extends rearwardly behind the wing (3) such that the ground clearance of the wing tip device (5) is increased.