Four tests of flight-ready Highly Loaded Grain (HLG) solid rocket motors were conducted by Raytheon and Northrop Grumman.
Two defense firms have successfully conducted solid rocket motor tests for the U.S. Army’s Next-Generation Short-Range Interceptor . Four tests of flight-ready Highly Loaded Grain solid rocket motor s were conducted by Raytheon and Northrop Grumman.
The test for HLG, which is a solid propellant technology, can boost the U.S. Army’s new short-range missile that flies faster and performs better against aerial threats than existing interceptors.HLG provides longer burn time and more energy output than conventional solid rocket motors, which extends the range of Raytheon’s NGSRI offering compared to other missiles.Successful flight demonstrationThe companies revealed that three static firings in different environments were completed, followed by a successful ballistic flight demonstration. More tests have been planned in the coming months. The missile can be fired from a tripod, vehicle or shoulder launcher.“These tests demonstrate our ability to rapidly develop this transformational air defense capability, which can defeat a variety of airborne threats at far greater ranges than legacy systems,” said Tom Laliberty, president of Land and Air Defense Systems at Raytheon. “Alongside Northrop Grumman, Raytheon is delivering cutting-edge technology to protect our warfighters.”Raytheon is leveraging collaborative research at the Northrop Grumman Allegany Ballistics Laboratory in West Virginia to rapidly develop the new extended-range motor design, transitioning from proof of concept to first flight in a record time of less than six months, according to a press release.Next-generation propulsion technology“Northrop Grumman continues to push the boundaries on next-generation propulsion technology, and we’re excited to work with Raytheon to bring this advanced solution for warfighters at record pace,” said Frank DeMauro, vice president and general manager, Weapon Systems, Northrop Grumman. “Developed and demonstrated in five months, this innovative HLG motor provides increased speed, range, effectiveness and mission flexibility in a very small package.”NGSRI design leverages more than 60 years of air defense experience to provide the world’s most advanced shoulder-launched air defense missile for the U.S. Army and Marine Corps. The company’s use of modular system design and automated manufacturing has enabled faster development and production, as per the release.Short-range missile can perform better against advanced aerial threatsThe short-range missile can fly faster and perform better against advanced aerial threats than existing interceptors. A vast range of propulsion technologies for rocket propulsion can boost performance on a different basis.Multi-pulse solid rocket motor technology, meanwhile, can be a simple way of extending range, alternating between phases of boost and coast during flight.Highly loaded grain motors, throttleable solid rocket motors, and air-breathing motors are other options or, alternatively, more traditional turbojet and turbofan solutions. Simple tailoring of the aerodynamic properties of the system is also an option.
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