China develops ultra-small drone, 2cm long and weighing 0.3g

A Chinese research team has succeeded in developing a mosquito-sized reconnaissance drone. Such ultra-small drones are expected to be used for special missions in war and disaster situations.
According to Chinese media such as China Central Television (CCTV), on the 21st, the Robotics Institute of the National University of Defense Technology (NUDT) of China developed a robot with a length of 2 centimeters and a wingspan of 3 centimeters.
The company has independently developed an ultra-small drone weighing just 0.3 grams. It has been reported that the drone combines technologies such as microelectromechanical systems (MEMS), material science, and bionics.
They also improved the precision of chip etching (drawing patterns on wafers) to 5 nanometers (nanometer = 1 billionth of a meter).
In addition, the carbon nanotube-reinforced soft actuator allows it to flap its wings up to 500 times per second and reach a speed of 62 to 74 kilometers per hour.
The drone can fly stably even in windy conditions. The institute believes that because it is undetectable by radar, it can penetrate into areas of the battlefield that are difficult to reach with traditional reconnaissance equipment without being detected.
He also expected that the technology could be used in a wide range of applications, such as finding signs of survivors' vitality among the rubble of collapsed buildings.
"These ultra-small drones are used for intelligence and reconnaissance, as well as special operations," a NUDT graduate student told CCTV.
"It's particularly well suited to missions like that."