Static fire test of advanced solid rocket motor could help make lethal air-to-air weapon

Two American defense companies, Raytheon and Anduril, recently conducted a successful static fire test of an advanced solid rocket motor (SRM) featuring a Highly Loaded Grain (HLG) configuration. This test, part of a contract with the Air Force Research Laboratory Munitions Directorate, validated the performance of a heavy-wall SRM designed to enhance propulsion technology for air-to-air weapon systems. The HLG design, developed by Anduril using technology from Naval Air Weapons Station China Lake and supported technically by Raytheon, allows for significantly greater volumes of energetic propellant. This results in increased specific impulse and improved motor performance, translating into extended range and greater tactical advantages for U.S. and allied forces. Beyond the technical achievement, Raytheon emphasized that the test represents progress toward building a more robust and adaptable supply base for solid rocket motors to meet emerging national security needs. The collaboration with Anduril aligns with Raytheon’s composable weapons strategy, aiming to develop flexible missile