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 ...

University of Maryland researchers have performed flight tests to prove that a bird-like micro air vehicle (MAV) can achieve additional lift by folding its wings on the upstroke, similar to the ...

By studying how grasshoppers glide and fold their wings, researchers are finding new ways to extend flight time for ...

(Nanowerk News) Birds fly more efficiently by folding their wings during the upstroke, according to a recent study (Advanced Intelligent Systems, "Robotic Avian Wing Explains Aerodynamic Advantages of ...