Master Sgt. David Delgado, 356th Airlift Squadron loadmaster instructor, explains the importance of using the proper Air Force forms prior to loading a C-5M Super Galaxy Aug. 8, 2018 to his loadmaster students at Joint Base San Antonio-Lackland. It takes 18 months for a loadmaster to graduate from this course taught by Reserve Citizen Airmen with the 733rd Training Squadron. (U.S. Air Force photo by Tech. Sgt. Carlos J. Treviño)