The Mk 92 Fire Control System is a US-built medium-range anti-aircraft missile and gun fire control system. It was developed for the Oliver Hazard Perry class guided missile frigates

Oliver Hazard Perry class frigate

The Oliver Hazard Perry class is a class of frigates named after the American Commodore Oliver Hazard Perry, the hero of the naval Battle of Lake Erie...

. The system is a licensed USN version of the Thales Nederland

Thales Nederland

Thales Nederland B.V. is a subsidiary of Thales Group involved primarily in naval defence systems...

 WM-25 fire control system. The Mark 92 fire control system was approved for service use in 1975. Introduction to the fleet and follow-on test and evaluation began in 1978. In 1981,

Radar Systems

The Mk 92 system assigns targets via the ship's air search radar, and surface search radar or from the MK 92's own search radar capabilities. The system has two or three radar sub-systems depending on the model. The first two are combined in to a single system called the Combined Antenna System or CAS is used in all models. The CAS has a track while scan radar (Search) and a tracking radar both housed in an egg shaped randome. The radars can search for, track, and illuminate targets. There is also a third radar for target illumination referred to as the Separate Target Illumination Radar or STIR. The STIR is a radar developed from the AN/SPG-60

Ship Gun Fire Control Systems

Ship gun fire-control systems enable remote and automatic targeting of guns against ships, aircraft, and shore targets, with or without the aid of radar or optical sighting. Most US ships destroyers or larger employed GFCS for 5 inch and larger guns, up to battleships such as the USS Iowa...

 radar that is part of the Mk 86 gun fire control system.

Versions

• Mk 92 modification 0 is an early version of the system for the USN.

Gun and missile control:
1 air engagement channel
2 surface-search, TWS channels

• Mk 92 modification 1 is the version used by United States Coast Guard cutters. It does not use the STIR or control surface to air missiles.

Gun only:
1 air engagement channel
2 surface-search, TWS channels

• Mk 92 modification 2 is the version that was originally fit to USN Oliver Hazard Perry class guided missile frigates.

Gun and missile control:
2 air engagement channels, including STIR with Mk 107 console
2 surface-search, TWS channels

• Mk 92 modification 5 is used by certain Saudi Arabian Badr class corvettes.

Gun only:
1 air engagement channel
2 surface-search, TWS channels

• Mk 92 modification 6 is an upgraded version of the modification 2 as part of the CORT program. It was installed on 12 USN FFG-7-class frigates, the eight Republic of China Navy's Cheng Kung-class frigates and two of the Spanish Santa Maria-class units.

2 air engagement channels, including STIR with Mk 107 console and (coherent receiver/transmitter CORT) transceiver
2 surface-search, TWS channels

Modification	Sufrace Engagement Channels	Air Engagement Channels (gun only)	Air Engagement Channels
0	2	0	1
1	2	1	0
2	2	0	2
5	2	1	0
6	2	0	2

STIR (Separate Target Illumination Radar) Deactivated

The USN retired the RIM-66E, or Standard missile-1

RIM-66 Standard

The RIM-66 Standard MR is a medium range surface-to-air missile originally developed for the United States Navy . The SM-1 was developed as a replacement for the RIM-2 Terrier and RIM-24 Tartar that were deployed in the 1950s on a variety of USN ships...

, from active service in 2003. Oliver Hazard Perry frigates in USN service have had the STIR radar removed. The STIR radars are still in use on non-USN vessels.

See also

• Badr class corvette
  Badr class corvette
  The Badr class is a class of corvette built by the United States and operated by the Saudi Navy. The class has been relegated to a coastal defence role following the modernisation of the Saudi fleet. There are four vessels in service; the RSN Badr , RSN Al Yarmook , RSN Hitteen and the RSN Tabuk...
  
  
• Hamilton class cutter
  Hamilton class cutter
  The Hamilton class cutter was the largest class of vessel in the United States Coast Guard until replaced by the National Security Cutter, aside from the Polar Ice Breakers. The hull classification symbol is prefixed WHEC...
  
  
• RIM-66 Standard
  RIM-66 Standard
  The RIM-66 Standard MR is a medium range surface-to-air missile originally developed for the United States Navy . The SM-1 was developed as a replacement for the RIM-2 Terrier and RIM-24 Tartar that were deployed in the 1950s on a variety of USN ships...
  
  
• Oliver Hazard Perry class frigate
  Oliver Hazard Perry class frigate
  The Oliver Hazard Perry class is a class of frigates named after the American Commodore Oliver Hazard Perry, the hero of the naval Battle of Lake Erie...
  
  
• Mk 74 "Tartar" Guided Missile Fire Control System
  Tartar Guided Missile Fire Control System
  The Tartar Guided Missile Fire Control System is an air defense system developed by the United States Navy to defend warships from air attack. Since its introduction the system has been improved and sold to several United States allies.-Description:...
  
  
• USCG Medium Endurance Cutter
  USCG Medium Endurance Cutter
  The United States Coast Guard's cutter fleet contains numerous smaller vessels, and about three dozen large icebreakers, High endurance cutters, Medium Endurance cutters, and three National Security Cutters. There are two legacy vessels, the Alex Haley and the Acushnet.There are 13 vessels in the...