An aircraft with a foldable wing tip device

摘要

An aircraft comprises a wing 1 and a wing tip device 6. The wing tip device 6 is moveable between a flight configuration for use during flight and a ground configuration for use during ground-based operations. In the ground configuration the wing tip device is folded inwardly from the flight configuration such that the span of the aircraft is reduced. The wing tip device 6 is connected to the wing along a hinge axis 14 by spar beams 10 and 12 of the wing tip device, one of the beams being mounted for pivoting about a fixed axis and the other beam being mounted on a spherical bearing 15 to provide greater freedom of movement. Various actuator arrangements may be provided to pivot the wing tip device.