The Chinese company QilingUAV announced the development of unmanned aerial vehicle helicopter-type JS260, which you can use when fighting forest fires. According to the message of the company, the device can carry two containers filled with liquid to extinguish the fire.
Forest fires using aircraft is very difficult and dangerous operation. The smoke from the fire greatly impairs visibility, and the hot air from the fire, degrades the controllability of the aircraft and may disrupt the operation of the engines. The pilots should fire-fighting airplanes or helicopters have to fly over the fire as low as possible for efficient discharge of water.
Chinese developers believe that the use of drones should make fighting wildfires safer.
JS260 has a length of 2.8 meters, height — 1.6 meters and is equipped with two coaxial controversies rotors with a diameter of 3.6 meters. The unit weight of 160 kg equipped with two 34-horsepower gasoline engines with water cooling and is able to stay aloft for up to 4 hours.
The drone can carry a payload weighing up to 100 pounds. It is equipped with two suspension points for containers with liquid to extinguish the fire. Containers may be discharged one at a time or simultaneously. The developers claim that the volume of each tank is sufficient to extinguish 50 cubic meters of forest. Other details about the JS260 is not specified.
At the end of 2019 the Israeli company Elbit Systems has tested a new means of fire extinguishing, by which the aircraft will be able to extinguish the fire on the ground from a greater height and at night. Development is a kind of Kapitoshka — thin bags filled with water, foam or retardant.