![Feathered robotic wing paves way for flapping drones Feathered robotic wing paves way for flapping drones](https://search.ai.wiki/wp-content/uploads/2023/03/feathered-robotic-wing-paves-way-for-flapping-drones.jpg)
Feathered robotic wing paves way for flapping drones
Birds fly more efficiently by folding their wings during the upstroke, according to a recent study. The results could mean that wing-folding is the next step in increasing the propulsive and aerodynamic efficiency of flapping drones.