Feathered robotic wing paves way for flapping drones

Birds fly more efficiently by folding their wings during the upstroke, according to a recent study led by Lund University in Sweden. The results could mean that wing-folding is the next step in increasing the propulsive and aerodynamic efficiency of flapping drones.

from Tech Xplore - electronic gadgets, technology advances and research news https://ift.tt/pFBluEL