Tech needed to improve air
China Daily 03 July 2014
It has carried out more than 100 hours of test flights and will spray chemicals that freeze pollutants, making them to fall to the ground.
The new drone is 90 percent cheaper to operate than the fixed-wing aircraft that have been used to disperse smog for several years.
The drone can carry 80 kg of smog-dispersing chemicals and can remain airborne for three hours, AVIC Aerospace says. A future model will be able to carry 700 kg of chemicals.