VANDENBERG AIR FORCE BASE, Calif.– Team Vandenberg launched a United Launch Alliance Delta IV Medium+ (5,2) from Space Launch Complex-6 here at 4:12 p.m. PDT Tuesday, April 3, 2012. The launch was the Department of Defenseâs first-ever Delta IV Medium launch vehicle configured with a 5-meter payload fairing and two solid rocket motors. (U.S. Air Force photo/Rodney Jones)