Demonstration Formation The Thunderbirds, the Air Force's flight demonstration squadron, stand in formation before performing during the Sound of Speed Air Show in St. Joseph, Mo., May 2, 2021. SHARE IMAGE: Download Image: Full Size (0.72 MB) Tags: Air Force Photo By: Air Force Staff Sgt. Andrew Sarver VIRIN: 210502-F-JV039-9175C.JPG Photo Gallery