U.S. orders additional SM-3 Block IB missile interceptors

Defence affairs - Def-Geopolitics on X

The Missile Defense Agency has awarded Raytheon a nearly $267 million contract modification for the production of additional Standard Missile-3 (SM-3) Block IB interceptors, according to a contract announcement.

The work will support the procurement and delivery of 23 additional SM-3 Block IB missiles, bringing the total under the contract to 78 interceptors.

The modification also includes one-time costs required to restart the SM-3 Block IB production line, allowing the system to remain available for operational use and allied missile defense missions.

According to the contract notice, the modification definitizes two previously announced undefinitized contract actions tied to the missile’s production. The new award increases the value of the production effort from $1.099 billion to $1.366 billion.

The total value of the broader contract associated with the missile program rises to about $3.31 billion. The work will be performed primarily in Tucson, Arizona, where Raytheon produces key missile components, with additional work taking place in Huntsville, Alabama. The program is expected to continue through May 2030.

According to the Missile Defense Agency, the new contract modification will support the procurement of 23 SM-3 Block IB All-Up Rounds (AURs). An All-Up Round refers to a fully assembled missile ready for operational use.

The SM-3 interceptor is part of the United States’ Aegis Ballistic Missile Defense system, which is designed to intercept short- to intermediate-range ballistic missiles during the midcourse phase of flight, when the target is traveling through space.

Unlike traditional missiles that rely on explosive warheads, the SM-3 interceptor uses a kinetic kill vehicle. This technology destroys incoming ballistic missiles by colliding with them at extremely high speeds.

After launch, the missile’s multi-stage rocket booster carries the interceptor into space. The kill vehicle then separates and uses onboard sensors and guidance systems to track and strike the incoming ballistic missile.

The SM-3 Block IB variant includes improvements to the interceptor’s seeker and guidance system compared with earlier versions. These enhancements allow the missile to better discriminate between actual targets and decoys in space.The missile is designed to be launched from Aegis-equipped naval vessels as well as land-based Aegis Ashore installations. Once fired, the interceptor can engage ballistic missile threats outside the Earth’s atmosphere.

Ballistic missile defense systems using SM-3 interceptors are intended to protect military forces, allied territories, and critical infrastructure from missile attacks. The missile is a key component of the United States’ layered missile defense architecture.