Standard Missile-3

Full Specifications

Standard Missile-3 SM-3 Ballistic Missile Interceptor

The Standard Missile-3, commonly known as SM-3, is a ship based ballistic missile interceptor developed to counter short to intermediate range ballistic missile threats. Designed for exo-atmospheric engagements, the SM-3 forms a core element of the U.S. Navy Aegis Ballistic Missile Defense system. It uses hit to kill technology, destroying incoming missiles through kinetic energy rather than an explosive warhead.

SM-3 interceptors are deployed aboard Aegis equipped cruisers and destroyers, as well as at Aegis Ashore sites in Europe. The missile plays a central role in layered missile defense strategies, protecting U.S. forces, allied territories, and critical infrastructure.

Manufacturer

The SM-3 is produced by Raytheon Missiles and Defense, now part of RTX Corporation, in partnership with Aerojet Rocketdyne for propulsion systems. The program is managed under the U.S. Missile Defense Agency. Multiple variants exist, including the Block IA, IB, IIA, and IIB concepts, with the Block IIA co developed with Japan.

Speed

The SM-3 travels at speeds exceeding Mach 10, depending on the variant. Its high velocity enables rapid response against fast moving ballistic missile targets in midcourse flight.

Range

The interceptor has an operational engagement range exceeding 700 kilometers, with advanced variants capable of intercepting targets at altitudes above 1,000 kilometers in space.

Cost / Price

Unit cost varies by variant. The SM-3 Block IA and IB are estimated at roughly 9 to 12 million dollars per missile, while the larger Block IIA variant can exceed 20 million dollars per unit.