According to the Iranian Air Force, its F-4 Phantom IIs were engaged by SM-2ERs but managed to evade them, with one aircraft sustaining non-fatal damage due to shrapnel. Operational history ĭuring the Iran–Iraq War (1980–1988) the United States deployed Standard missiles to protect its navy, as well as other ships in the Persian Gulf from the threat of Iranian attacks. RIM-174 Standard Missile 6 ERAM is a new generation of Standard extended range missiles, which became operational in 2013. The Standard can also be used against ships, either at line-of-sight range using its semi-active homing mode, or over the horizon using inertial guidance and terminal infrared homing. The USN rescinded the requirement for the nuclear armed missile in the 1980s, and the project was canceled. There was a plan to build a nuclear armed standard missile mounting a W81 nuclear warhead as a replacement for the earlier Nuclear Terrier missile (RIM-2D). This configuration can also be used for Terminal phase Ballistic Missile Defense. The Mk72 booster allows the RIM-156A to fit into the Mark 41 Vertical Launching System. The RIM-156A Standard SM-2ER Block IV with the Mk 72 booster was developed to compensate for the lack of a long range SAM for the Ticonderoga class of Aegis cruisers. However, Aegis ships were not equipped with launchers that had space enough for the longer RIM-67B.
1 ER UPGRADE
Terrier ships reequipped as part of the New Threat Upgrade were refit to operate the RIM-67B (SM-2ER Block II) missile. This design change was made so that missiles could time share illumination radars and enable equipped ships to defend against saturation missile attacks. The principal change over the Standard missile 1 is the introduction of inertial guidance for each phase of the missile's flight except the terminal phase where semi-active homing was retained. The destroyer USS Mahan served as the test platform for the development of the CG/SM-2 (ER) missile program project. The second generation of Standard missile, the Standard Missile 2, was developed for the Aegis combat system, and New Threat Upgrade program that was planned for existing Terrier and Tartar ships. Ships that switched from the RIM-2 Terrier to the RIM-67A were still referred to as Terrier ships even though they were equipped with the newer missile.
Existing ships with the Mk86 guided missile fire control system, or "Terrier" were adapted to employ the new missile in place of the older RIM-2 Terrier missile. Improved technology allowed the RIM-67 to be reduced to the size of the earlier RIM-2 Terrier missile. The RIM-67A (SM-1ER Block I) was the Navy's replacement for RIM-8 Talos missile. ( January 2021) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources.
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