Rocket Lab’s August 2026 earnings update shifted focus to delivering the Neutron vehicle to Launch Complex 3 in Q4 2026 rather than achieving first flight, with CEO Peter Beck noting the end-of-year launch window is narrowing. A January 2026 first-stage tank rupture during hydrostatic testing had already slipped prior targets, leaving extensive qualification work—including Stage 1 integration, wet dress rehearsals, and static-fire testing of the nine Archimedes methane engines—compressed into the final months. Multiple independent analyses now view a 2027 debut as the base case given historical schedule slips and the time required for safe flight qualification of the partially reusable medium-lift design. A flawless execution of remaining milestones without anomalies could still enable a late-2026 attempt, though the compressed timeline heightens that risk.