Raytheon has been contracted by the US Department of Defense to develop and manufacture the SM-2 Block IIICU surface-to-air missile under a deal worth $258.7 million, with completion slated for September 2031. The contract also includes $18.4 million in funding from Canada through the foreign military sales program.
The new variant improves on legacy Block III/IIIA/IIIB missiles, offering expanded capabilities against modern threats including anti-ship cruise missiles and tactical aircraft.
The most notable advancement is the integration of a dual-mode seeker—blending semi-active and active guidance—alongside components shared with the SM-6 Block IAU, plus a redesigned dorsal fin and jet tab system for improved control and flight performance.
Designed with a 90-mile (145-kilometer) range, the Block IIICU will enhance the defensive reach of Arleigh Burke and Zumwalt destroyers, Ticonderoga cruisers, and Constellation-class frigates. It will also operate within the Naval Integrated Fire Control – Counter Air architecture, extending detection and engagement beyond individual platforms.
SM-2 production, previously halted in 2017, was restarted in 2021 and now supports multiple allies. Early adopters include the US, Australia, Canada, Japan, and South Korea. The missile achieved an interim capability in 2022, with initial testing set for 2027, followed by mass production.
