Abstract: Systems and methods are used to determine a defined fastener for fastening two parts together at an assembly fastener location. The defined fastener comprises fastener components selected from a plurality of different fastener components available for use in an assembled fastener. The fastener components of the defined fastener may be selected based on criteria defining characteristics of an assembly stackup including the two parts and the assembled defined fastener. Dimensions of the two parts at respective fastener locations forming the assembly fastener location may be used to determine a part stackup dimension for the assembled fastener at the assembly fastener location.

Abstract: Systems and methods are used to determine a defined fastener for fastening two parts together at an assembly fastener location. The defined fastener comprises fastener components selected from a plurality of different fastener components available for use in an assembled fastener. The fastener components of the defined fastener may be selected based on criteria defining characteristics of an assembly stackup including the two parts and the assembled defined fastener. Dimensions of the two parts at respective fastener locations forming the assembly fastener location may be used to determine a part stackup dimension for the assembled fastener at the assembly fastener location.

Abstract: Disclosed wing-to-body join methods include commanding a wing to a first command position and then iteratively repeating a first-phase movement and/or commanding a wing to a second command position and then iteratively repeating a second-phase movement. The first-phase movement includes determining a real position of the wing, calculating a first-phase difference between the real position and the first command position, and commanding the wing to reduce the magnitude of the first-phase difference. The second-phase movement includes determining a real position of the wing, determining a real position of the body, calculating a second-phase difference based on the second command position and the real positions of the wing and body, and commanding the wing to reduce the magnitude of the second-phase difference. Some embodiments include performing a port-side move for a port wing of the aircraft and performing a starboard-side move for a starboard wing of the aircraft.