Overview
- Anduril publicly introduced Steelfin as a family of two-stage surface-to-air interceptors that pair interchangeable first-stage boosters with a common terminal vehicle.
- The company says the design can accept different seekers and mission systems and can be launched from existing Patriot, CAML and Typhoon launchers or containerized canisters.
- Anduril executives have set a target unit cost roughly one-third that of the Patriot PAC-3 MSE, a claim that remains a company projection until independent verification or procurement contracts appear.
- Anduril says it has completed representative ballistic testing, plans flight tests of Steelfin variants in 2027, and expects full-rate production by late 2028 or early 2029 if testing and contracts proceed as planned.
- The announcement builds on Anduril’s existing solid rocket motor work and comes alongside Pentagon and industry moves to expand interceptor production, with the company positioning Steelfin for Army low-cost interceptor efforts and other competitions.