Aircraft wing assembly

An aircraft wing assembly,

• the aircraft wing assembly comprising a fixed wing and a wing tip device at the tip thereof, wherein the wing tip device is configurable 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 rotated away from the flight configuration about a hinge axis such that the span of the aircraft wing assembly is reduced, wherein:
• the aircraft wing assembly further comprises a wing tip device actuation system comprising a bell crank and a first linear actuator;
• wherein
• the bell crank is rotatably mounted to one of the fixed wing or wing tip device at a pivot point of the bell crank and is rotatable about a bell crank axis defined by the pivot point, the bell crank axis being offset from the hinge axis,
• the bell crank is connected to the one of the fixed wing or the wing tip device on a first side of the pivot point by a linear actuator;
• the bell crank is connected to the other one of the fixed wing or wing tip device on an opposite second side of the pivot point;
• and
• the first linear actuator is operable to rotate the bell crank about the bell crank axis to thereby move the wing tip device about the hinge axis, between the flight configuration and the ground configuration.