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Hyundai Rotem is advancing its hypersonic weapon program, HyCore, in partnership with the Agency for Defense Development since 2018. The weapon aims to exceed Mach 6, reaching speeds of about 7340 km/h during tests in 2024 at an altitude of 23 km.

Unlike traditional ballistic missiles, HyCore is designed to fly lower and maneuver during flight, making it harder to predict and intercept. Full-scale production is expected to start around 2035, providing a decade to tackle challenges such as high-temperature materials and propulsion reliability.