Airman Calvin Daniels, 28th Maintenance Squadron aircrew egress system apprentice, adjusts the drogue gun on an Advance Concept Ejection Seat II on Ellsworth Air Force Base, S.D., Jan. 23, 2012. All parts on the ACES II are thoroughly checked by egress Airmen daily to maintain the equipment’s functionality. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)