A radio-controlled spray-drone could get in under the canopy and seek out the flame from a close distance. A drone would create wind and blow the fire back on itself at 3:00 in the morning when the flame is low. The down-draft of the propellers would dissipate the water. If a “Spray-drone” can lift 50KG then it can carry water into places where humans fear to tread. I quickly call on Morrison’s boffins to create the worlds first ‘Spray-drone’ and Put Out The Fires.