Add Yahoo as a preferred source to see more of our stories on Google. Black Flag 24-1, out of Eglin Air Force Base, Florida, run by the Air Force’s 53rd Wing. This year, for the first time, the U.S.

You may have already seen this pose in a gym or on social media: a perfectly straight body, suspended in the air, slowly descending without ever touching the ground. It's the famous "Dragon Flag," a ...