The RIM-174 Standard Extended Range Active Missile, known as SM-6, is a U.S. Navy ship-launched missile developed by Raytheon. It expands the Standard Missile family from fleet air defense into a multi-role weapon for aircraft, cruise missiles, terminal ballistic missile defense, and selected surface targets.
SM-6 combines the Standard Missile airframe with an active radar seeker derived from AMRAAM technology. This allows over-the-horizon engagements when paired with networked sensors and gives Aegis ships a flexible interceptor that can contribute to air warfare, missile defense, and offensive anti-surface missions.
The missile is important because modern naval forces need weapons that can exploit offboard sensors and engage across large areas. SM-6 supports distributed maritime operations by turning many networked ships and aircraft into a larger kill chain, not just isolated launch platforms.
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