ULA’s Vulcan Gets USSF Payloads to Orbit Despite Another SRB Anomaly
United Launch Alliance’s (ULA’s) new Vulcan rocket delivered U.S. Space Force satellites to geosynchronous orbit today despite a “significant performance anomaly” on one of the Solid Rocket Boosters. This was only the fourth launch of Vulcan and the second time an SRB malfunctioned. In both cases Vulcan’s core stage compensated for the underperformance and put the payloads where they needed to go. ULA and its partners are investigating what happened.