RIM-67 Standard
Surface to air variants

RIM-67 Standard

Section Title: Surface to air variants
Table Section Text: None

Designation	Block	Notes

RIM-67A	SM-1ER Block I	Terrier Upgrade Essentially identical to the corresponding SM-1MR missile, except for the propulsion Atlantic Research Corp. MK 30 solid-fuel rocket sustainer motor Hercules MK 12 booster MK 51 continuous-rod warhead

RIM-67B	SM-2ER Block I	New Threat Upgrade. Entered service in 1980. Inertial Guidance System Monopulse seeker for terminal homing

RIM-67C	SM-2ER Block II	New Threat Upgrade Introduced MK 70 booster, almost doubling the effective range MK 115 blast-fragmentation warhead

RIM-67D	SM-2ER Block III	New Threat Upgrade MK 30 MOD 4 sustainer engine MK 45 MOD 8 proximity fuze (also known as TDD – Target Detection Device)

RIM-67D	SM-2ER Block IIIC	New Threat Upgrade for advanced anti-ship missiles and aircraft Active radar seeker

RIM-156A (ex-RIM-67E)	SM-2ER Block IV	Designed for Aegis VLS ships. Initial Operational Capability was declared in August 1999.

RIM-156B	SM-2ER Block IVA	Designed for modified Aegis VLS ships capable of tracking both TBM's and aircraft. Dual-mode RF/IIR (Radio Frequency/Imaging Infrared) seeker Upgraded MK 125 warhead package Enhanced autopilot for the anti-TBM mission Cancelled as a part of the whole NATBMD program in December 2001.

Sentence(s)

The RIM-156A Standard SM-2ER Block IV was developed for the Aegis cruisers.

final_sentence: The RIM-156A Standard SM-2ER Block IV was developed for the Aegis cruisers.