Maj. Gen. James N. Post III, Air Combat Command director of operations, rests in a full pressure suit while Airmen from the 9th Physiological Support Squadron conduct maintenance checks upon the suit Dec. 3, 2013, at Beale Air Force Base Calif. Full pressure suits are designed to protect aviators aboard U-2 Dragon Lady’s. The U-2 is the highest flying operational aircraft in the Air Force, often exceeding altitudes’ more than 70,000 ft. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)