Watch a giant industrial drone de-ice a huge wind turbine https://www.theverge.com/tldr/2018/3/26/17163464/drone-de-ice-clean-wind-turbine-aerones https://www.

Watch a giant industrial drone de-ice a huge wind turbine https://www.theverge.com/tldr/2018/3/26/17163464/drone-de-ice-clean-wind-turbine-aerones https://www.theverge.com/tldr/2018/3/26/17163464/drone-de-ic... "The craft has a tether line supplying water, which it sprays at up to 100 liters a minute (with optional de-icing coating), and another for power, meaning it can stay aloft indefinitely."