Michael Oliver, Pilot for a Day participant, poses for a group photo with fire fighters from the 11th Civil Engineer Squadron at Joint Base Andrews, Md., Feb. 5, 2016. Oliver, diagnosed with Erdheim-Chester Disease, a disease with no known cure, experienced what it is like to be a pilot for a day along with friends and family. The day included touring an assortment of aircraft including an F-16 Fighting Falcon, KC-135 Stratotanker and a UH-1N Huey helicopter. (U.S. Air Force photo by Senior Airman Dylan Nuckolls/Released)