Falcon-inspired robot achieves bird-like takeoff with wing motion

Scientists in China have developed RoboFalcon2.0, a falcon-inspired flying robot that achieves bird-like takeoff through a novel flapping-sweeping-folding (FSF) wing motion. Unlike conventional robotic flyers that use fixed wings or rotors, RoboFalcon2.0 mimics the natural wing movements of birds by flapping, sweeping forward, and folding its wings in a coordinated rhythm. This reconfigurable wing system, enabled by mechanical decouplers and a lightweight frame, allows the robot to generate lift and control pitch effectively during takeoff. Wind tunnel tests and simulations demonstrated that sweeping the wings forward amplifies leading-edge vortices, enhancing lift and stabilizing pitch, which is critical for successful liftoff. Weighing 800 grams with a 1.2-meter wingspan, RoboFalcon2.0 captures the dynamics of small birds and replicates the high power consumption pattern observed in living birds during takeoff. Field tests confirmed smooth self-powered take