An aircraft is provided with a wing assembly mounted in a slipstream of a
source of propulsion of the aircraft. The aircraft includes a body having
a longitudinal axis, a wing assembly carried by the body and including a
moveable portion moveable relative to the body and a wing carried by the
moveable portion. A first actuator is coupled to the moveable portion to
move it relative to the body in a direction generally parallel to the
axis of the body. A second actuator is coupled to the wing to move the
wing relative to the moveable portion and between first and second
positions. The second actuator at least selectively permits uninhibited
pivoted movement of the wing relative to the body in response to
aerodynamic forces acting on the wing so that the wing may pivot to a
position wherein the forces acting on the wing are balanced.