The world's first ducted-fan, high-altitude tethered firefighting drone will start its service at the emergency management bureau of Zigong City in southwest China's Sichuan after an official deal was inked on Tuesday.
Supported by eight ducted fans, the drone acts as an aerial fire hydrant, capable of ascending to 100 meters within one minute and continuously spraying water at a rate of over 20 liters per second, with an effective spraying range exceeding 40 meters.


Supported by eight ducted fans, the drone acts as an aerial fire hydrant, capable of ascending to 100 meters within one minute and continuously spraying water at a rate of over 20 liters per second, with an effective spraying range exceeding 40 meters.

