United Launch Alliance’s years-long delays with its new Vulcan rocket have flipped the script for national security missions, making SpaceX the new reliable provider. The shift to Elon Musk’s company at the detriment to ULA’s bottom line is on the pad again Friday with a SpaceX Falcon 9 set to launch the GPS III-7 mission from Cape Canaveral Space Force Station’s Space Launch Complex 40 during a window from 1:23-1:38 p.m., with a backup date on Saturday from 1:18-1:34 p.m. Space Launch Delta 45’