Two members of the UK-based Breitling Wingwalkers stole the show on the opening day of the AOPA-China Fly-In 2017 air show as they performed daring stunts on top of two flying planes. As the world’s largest professional civilian flight team of wingwalkers, the group makes sure that each show is a breathtaking vision. Their meticulously coordinated numbers see planes flying within three meters of each other at speeds exceeding 700 kph. Sponsored by the Aircraft Owners and Pilots Association (AOPA) of China, the five-day event, which kicked off on Friday, is held in Huangping county, southwest China's Guizhou Province.