Amazonas firefighters will use water-dropping drones to combat forest fires
"...The two aircraft will be remotely piloted and capable of flying at a height of 30 meters—the equivalent of a 10-story building. The drone is capable of carrying a one-and-a-half-inch hose to the fire's source, with a payload capacity of 90 kg and a flight autonomy of 30 minutes.
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Source: BandNews
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