Gao Song is the first and so far the only female pilot of a firefighting helicopter in China. Gao Song: "I want to use my own strength to keep flying, and always guard this blue sky" Gao: "The biggest challenge I think is in terms of physical strength, endurance and strength, usually we may extinguish the fire together for 2 to 3 days, or even longer is 4 to 5 days" "I am embarrassed to extend my palm to show everyone, but since you chose to fly, you have to keep going"