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Mark 92 Guided Missile Fire Control System

The Mark 92 is part of the combat systems of the Oliver Hazard Perry class frigate

The Mark 92 Fire Control System is a US-built medium-range anti-aircraft missile and gun fire control system. It was developed for the FFG-7 Oliver Hazard Perry class guided missile frigates. The system is a licensed USN version of the Thales Nederland 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.[1]

Radar SystemsEdit

The Mark 92 system assigns targets via the ship's air search radar, and surface search radar or from the Mark 92's own search radar capabilities.[1] The system has two or three radar sub-systems depending on the model. The first two are combined into 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 radome. 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 radar that is part of the Mark 86 gun fire control system.

VersionsEdit

 
Cross-section of a Mark 92's Combined Antenna System
  • Mark 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
  • Mark 92 modification 1 is the version used by United States Coast Guard cutters as well as the PHM-1 Class USN hydrofoils (excluding USS Pegasus. It does not use the STIR or control surface to air missiles.
Gun only:
1 air engagement channel
2 surface-search, TWS channels
  • Mark 92 modification 2 is the version that was originally fit to USN Oliver Hazard Perry-class guided missile frigates. It was also installed on the Adelaide-class derivatives built for Australia.
Gun and missile control:
2 air engagement channels, including STIR with Mark 107 console
2 surface-search, TWS channels
Gun only:
1 air engagement channel
2 surface-search, TWS channels
  • Mark 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 frigates.
2 air engagement channels, including STIR with Mark 107 console and (coherent receiver/transmitter CORT) transceiver
2 surface-search, TWS channels
Modification Surface Engagement Channels Air Engagement Channels (gun) Air Engagement Channels (missile)
0 2 1 1
1 2 1 0
2 2 1 2
5 2 1 0
6 2 1 2

[2]

STIR (Separate Target Illumination Radar) DeactivatedEdit

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

ReferencesEdit

  1. ^ a b "MK 92 Fire Control System (FCS)". GlobalSecurity.org. Retrieved 2008-12-12.
  2. ^ "MK 92 Fire Control System Manufacturer Doc" (PDF). GlobalSecurity.org. Retrieved 2009-02-26.

See alsoEdit