Arrangement for effecting movement of a wing tip device between a flight configuration and a ground configuration

An aircraft comprising a wing, a wing tip device at the tip of the wing and an actuator, the actuator being arranged to effect movement of the wing tip device between:

• (i) a flight configuration for use during flight and
• (ii) a ground configuration for use during ground-based operations, in which ground configuration the wing tip device is moved away from the flight configuration such that the span of the aircraft is reduced,
• characterised in that the aircraft comprises:
• a carriage guide, fixed relative to the wing, and
• a carriage arranged to move along the carriage guide as the wing tip device moves between the flight and ground configurations,
• wherein the carriage carries the wing tip device on a pivot, such that the wing tip device is rotatable relative to the carriage, about the pivot, as the carriage moves along the carriage guide
• the movement of the wing tip device, between the flight and the ground configurations, thereby comprising both a rotational component of movement of the wing tip device about the pivot, and a translational component of movement, of the pivot, along the carriage guide.