U.S. Air Force Chief Master Sgt. Gregory Trantham, 145th Maintenance Squadron, receives Meritorious Service Medal for his role as the maintenance systems Chief Enlisted manager, as well as a North Carolina Meritorious Service Medal for his 36 years of service during a ramp formation held at the North Carolina Air National Guard Base, Charlotte Douglas Intl. Airport May 3, 2015. A ramp formation is when units assigned to the 145th Airlift Wing form up quarterly to honor award winners and medal recipients. It also gives U.S. Air Force Col. Marshall Collins, 145th Airlift Wing commander, an opportunity to address his airmen. (U.S. Air National Guard photo by Senior Airman Laura Montgomery, 145th Public Affairs/Released