Construction is highly automated. Wing skins are created with automated fiber placement (AFP) https://www.seattletimes.com/business/boeing-aerospace/massive-sp

Construction is highly automated. Wing skins are created with automated fiber placement (AFP) https://www.seattletimes.com/business/boeing-aerospace/massive-speedy-robots-ready-to-build-composite-wings-for-boeing-777x/ https://www.seattletimes.com/business/boeing-aerospace/massi... The wings are assembled horizontally similar to the to A350. https://www.youtube.com/watch?v=yYXiz7GX4FI https://www.youtube.com/watch?v=yYXiz7GX4FI