Mojave, California – 6 May 2025 — Northrop Grumman Corporation has marked a significant step forward in hypersonic flight navigation, successfully completing two high-speed test flights of its Advanced Hypersonic Technology Inertial Measurement Unit. The trials, conducted using Stratolaunch’s Talon-A reusable hypersonic aircraft, bring engineers closer to mastering precise navigation for hypersonic vehicles operating in GPS-denied environments.

These advanced flight tests demonstrated the survivability and performance of the navigation unit—featuring a hemispherical resonator gyroscope—under the extreme conditions that define hypersonic flight. Enduring the intense forces and harsh environment at speeds exceeding Mach 5, the technology validated its capability to protect the trajectory of hypersonic vehicles from adversarial threats.

A major milestone was achieved with the successful collection of critical ground and flight data, spanning hours of operation within Earth’s atmospheric boundary. This data is expected to prove pivotal in shaping future development of navigation systems for next-generation hypersonic platforms.

As the race for hypersonic dominance accelerates, Northrop Grumman’s advancement underscores its leadership in delivering resilient, precise, and survivable navigation technology for defence applications worldwide.