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Defence giants Raytheon and Northrop Grumman have announced the successful testing of advanced rocket motors for the United States Army’s Next-Generation Short-Range Interceptor, marking a major step forward in the development of high-speed air defence technology.
The companies conducted four successful tests of flight-ready highly loaded grain (HLG) solid rocket motors – an advanced propulsion system designed to deliver longer burn time and greater energy output than conventional rocket motors.
The improved performance extends the range of Raytheon’s Next-Generation Short-Range Interceptor (NGSRI) missile, which is intended to outperform existing short-range interceptors against modern aerial threats.
The NGSRI is the US Army’s latest shoulder-launched, tripod- or vehicle-deployable missile system, built to respond more rapidly and effectively to airborne threats than legacy systems.
In the latest test series, engineers completed three static firings under varied environmental conditions, followed by a successful ballistic flight demonstration. Further flight tests are scheduled in the coming months.
“These tests show we can move quickly to deliver transformational air defence capability that can defeat a range of airborne threats at far greater distances than existing systems,” said Tom Laliberty, president of Land and Air Defence Systems at Raytheon. “Together with Northrop Grumman, we’re delivering cutting-edge technology to protect front-line forces.”
The motor development was carried out at Northrop Grumman’s Allegany Ballistics Laboratory in West Virginia, where the companies progressed from proof of concept to flight testing in under six months.
“Northrop Grumman continues to push the envelope on propulsion technology,” said Frank DeMauro, vice president and general manager of Weapon Systems at Northrop Grumman. “Developed and demonstrated in just five months, this HLG motor offers greater speed, range, effectiveness and operational flexibility in a compact package.”
Raytheon’s NGSRI builds on over six decades of experience in air defence systems and is being positioned as the most advanced shoulder-fired interceptor available to the US Army and Marine Corps. The use of modular system architecture and automated manufacturing techniques has allowed for rapid prototyping and scaling into production.
While the program is US-based, the capabilities demonstrated in the NGSRI tests are likely to draw interest from allied nations, including Australia, which is investing heavily in advanced air defence under its Integrated Investment Program.
