Excerpt: “The U.S. Department of Defense Test Resource Management Center (TRMC), in partnership with Naval Surface Warfare Center Crane Division (NSWC Crane), conducted a second successful flight of a fully recoverable uncrewed hypersonic test vehicle in March 2025, within three months of the first test in December 2024. This test campaign marks the Nation’s first return to reusable hypersonic flight testing since the manned X-15 program ended in 1968. In both tests, the Stratolaunch Talon-A hypersonic vehicle launched from the Roc carrier aircraft, flew over the Pacific Ocean and achieved speeds greater than Mach 5 before landing at Vandenberg Space Force Base. The landmark tests supported the ongoing TRMC Multi-Service Advanced Capability Hypersonics Test Bed (MACH-TB) project.”