A swing wing tip system for an air vehicle, the system comprising: a swing wing tip assembly comprising: a fixed wing portion of a wing of an air vehicle; an unfixed wing tip portion movably connected to the fixed wing portion; a dual load path structure configured to transfer load from the unfixed wing tip portion to the fixed wing portion, characterized by: the dual load path structure comprising: fixed wing portion dual wing skin plates comprising an upper wing skin and a lower wing skin; a rotation joint coupled between the dual wing skin plates and configured to rotationally couple the unfixed wing tip portion to the fixed wing portion, the rotation joint comprising: a dual rotation pin element having a center rotation axis; and, dual rotation elements configured to rotate about the center rotation axis; an actuator assembly operatively coupled to the rotation joint to actuate the rotation joint enabling rotation of the unfixed wing tip portion with respect to the fixed wing portion about the center rotation axis at a selected operation condition; and, a controller system operatively coupled to the actuator assembly to control actuation of the rotation joint and rotation of the unfixed wing tip portion. a swing wing tip assembly comprising: a fixed wing portion of a wing of an air vehicle; an unfixed wing tip portion movably connected to the fixed wing portion; a dual load path structure configured to transfer load from the unfixed wing tip portion to the fixed wing portion, characterized by: the dual load path structure comprising: fixed wing portion dual wing skin plates comprising an upper wing skin and a lower wing skin; a rotation joint coupled between the dual wing skin plates and configured to rotationally couple the unfixed wing tip portion to the fixed wing portion, the rotation joint comprising: a dual rotation pin element having a center rotation axis; and, dual rotation elements configured to rotate about the center rotation axis; a fixed wing portion of a wing of an air vehicle; an unfixed wing tip portion movably connected to the fixed wing portion; a dual load path structure configured to transfer load from the unfixed wing tip portion to the fixed wing portion, characterized by: the dual load path structure comprising: fixed wing portion dual wing skin plates comprising an upper wing skin and a lower wing skin; a rotation joint coupled between the dual wing skin plates and configured to rotationally couple the unfixed wing tip portion to the fixed wing portion, the rotation joint comprising: a dual rotation pin element having a center rotation axis; and, dual rotation elements configured to rotate about the center rotation axis; fixed wing portion dual wing skin plates comprising an upper wing skin and a lower wing skin; a rotation joint coupled between the dual wing skin plates and configured to rotationally couple the unfixed wing tip portion to the fixed wing portion, the rotation joint comprising: a dual rotation pin element having a center rotation axis; and, dual rotation elements configured to rotate about the center rotation axis; a dual rotation pin element having a center rotation axis; and, dual rotation elements configured to rotate about the center rotation axis; an actuator assembly operatively coupled to the rotation joint to actuate the rotation joint enabling rotation of the unfixed wing tip portion with respect to the fixed wing portion about the center rotation axis at a selected operation condition; and, a controller system operatively coupled to the actuator assembly to control actuation of the rotation joint and rotation of the unfixed wing tip portion.