Anduril unveils Steelfin modular interceptor family for air‑to‑air and missile defense
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Anduril announced its Steelfin two‑stage surface‑to‑air interceptor family, designed to cover missions from drone interception to hypersonic missiles.
The system uses a common airframe, avionics, software, flight controls and interfaces across variants, with a booster stage that can be sized for different ranges and profiles. Anduril says a configuration for Patriot PAC‑3 missions could provide about 80% of PAC‑3 capability at less than half the cost, while a higher‑performance version could meet all THAAD missions for a fraction of THAAD’s price. In naval use, the design could deliver over 80% of SM‑2 capability for one‑third of SM‑2 cost and is compatible with existing launchers such as Patriot M903A2, Mk‑41 VLS, Typhon ground launcher, AEGIS and IBCS. Flight tests of the variants are planned for 2027 after ballistic test flights with representative vehicles.