The crews working on putting the large wildfire in California are using everything they have at their hands. CNN reported that,
Crew-carrying vehicles, mobile kitchen units, mobile communications units, trailers, forklifts, construction equipment, support units, all-terrain vehicles, snowmobiles and insect control vehicles are also in use.
From the air they are making use of helicopters and tactical planes. NASA is also helping by providing satellite imagery to help track the fires.
The helicopters, calling those “Helitacks,” are being used to drop water, foam and flame retardents from a bucket attached to the bottom of the helicopter.
Fire retardant is a slurry mix of a chemical salt compound, water, clay or a gum-thickening agent. Ammonium phosphate and iron oxide give the retardant its distinctive red color.