U.S. Air Force Academy cadet Austin Martin, a member of the Academy's Wings of Blue Parachute Team, salutes while jumping from a U.S. Army CH-47 Chinook helicopter at Beale Air Force Base, California, April 26, 2018.
Each cadet completes nearly 40 hours of ground training to make unassisted freefall skydives. (U.S. Air Force photo by Senior Airman Kaylee Dubois) Original public domain image from Flickr