Lt. Col. Merryl Tengesdal, 9th Reconnaissance Wing inspector general and U-2 Dragon Lady pilot, undergoes a full pressure suit maintenance check by Airmen from the 9th Physiological Support Squadron Feb. 9, 2015, at Beale Air Force Base, Calif. Tengesdal is the only black female U-2 pilot in history. (U.S. Air Force photo by Senior Airman Bobby Cummings/Released)