Northrop Grumman advances hypersonic defence with Glide Phase Interceptor development

The company has already completed a three-year development phase in close collaboration with the MDA. This phase resulted in an innovative design capable of addressing both current and emerging hypersonic threats. In the next stage, Northrop Grumman will refine the system’s design and conduct flight experiments to assess performance in hypersonic environments.

The GPI will be launched from the U.S. Navy’s Aegis Ballistic Missile Defence destroyers and Aegis Ashore platforms, using the standard Vertical Launch System. The upcoming phase will focus on demonstrating the system’s capability to operate in hypersonic conditions and completing its Preliminary Design Review. Northrop Grumman aims to accelerate the development process by using digital engineering methods, allowing for more efficient progress.

Wendy Williams, vice president and general manager of Northrop Grumman’s launch and missile defence systems, highlighted the strategic importance of the GPI. She stated, “GPI adds mission-critical standoff to warfighters in scenarios where distance creates an advantage. Tailorable to a multitude of mission requirements, Northrop Grumman’s revolutionary solution is designed to perform in the evolving threat landscape.”

The GPI design incorporates advanced technologies, including a seeker for precise tracking and hit-to-kill accuracy, a re-ignitable upper stage engine for threat containment, and a dual engagement mode to address threats at varying altitudes.

Northrop Grumman is also partnering with the Japan Ministry of Defence under the GPI Cooperative Development programme. This collaboration will support the MDA’s efforts to enhance interceptor capabilities.