Korea's cardboard drones address UAV shortages and climate crisis — inspired by the Ukraine war, drone inventor looked for the most easily sourced and repairable materials

https://www.tomshardware.com/tech-industry/koreas-cardboard-drones-address-uav-shortages-and-climate-crisis-inspired-by-the-ukraine-war-drone-inventor-looked-for-the-most-easily-sourced-and-repairable-materials