RIM-67 Standard

The RIM-67 Standard ER, also called the SM-1ER and SM-2ER, is an extended-range surface-to-air missile with a secondary anti-ship capability, developed by Raytheon for the United States Navy. It grew out of the RIM-66 Standard medium-range missile and replaced the 1950s RIM-8 Talos and RIM-2 Terrier, which is why the RIM-66 and RIM-67 series became the Navy's universal anti-air missile family. The first-generation RIM-67A was reduced to the size of the Terrier and fitted to existing Terrier ships. The second-generation RIM-67B, the SM-2ER Block I, added inertial guidance until a semi-active radar terminal phase and was built for the Aegis Combat System and the New Threat Upgrade program. The related RIM-156A Block IV, with a Mk 72 booster, fits the Mark 41 vertical launching system. US warships fired Standard missiles during the Iran-Iraq War, including in Operation Praying Mantis in April 1988.