New Chinese drone can fly as long as the sun shines — solar-powered device with 200mm wingspan weighs record-breaking 4.21g

Beijing scientists have developed what they claim is the world’s smallest and lightest solar-powered drone. One of the key milestones this 4.21g device with its 200mm wingspan has achieved is being able to fly non-stop during daylight. 

Beijing scientists have developed what they claim is the world’s smallest and lightest solar-powered drone. One of the key milestones this 4.21g device with its 200mm wingspan has achieved is being able to fly non-stop during daylight.