Raytheon and Northrop Grumman have successfully tested solid rocket motors for the US Army’s Next-Generation Short-Range Interceptor (NGSRI), the replacement for the Stinger missile.

The motors used Highly Loaded Grain (HLG) solid propellant, which burns longer and delivers more energy than standard rocket motors. This allows the NGSRI, which can be launched from a tripod, vehicle, or shoulder, to fly farther and hit aerial threats faster.

Four rounds of tests were conducted. In the last round, three static firings under various conditions and a ballistic flight demonstration were conducted. Additional flight tests are scheduled in the coming months.

Developed at Northrop Grumman’s Allegany Ballistics Laboratory in West Virginia with Raytheon, the HLG was ready for demonstration in just

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