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]

Contents

• Radar Systems
• Versions
• STIR (Separate Target Illumination Radar) Deactivated
• References
• See also

Radar Systems

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.

Versions

• 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

• Mark 92 modification 5 is used by certain Saudi Arabian Badr-class corvettes (PGG and PCG Class ships).

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

^[2]

STIR (Separate Target Illumination Radar) Deactivated

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.

References

See also

• Badr class corvette
• Hamilton class cutter
• RIM-66 Standard
• Oliver Hazard Perry class frigate
• Mark 74 "Tartar" Guided Missile Fire Control System
• USCG Medium Endurance Cutter
• Media related to Mark 92 Fire Control System at Wikimedia Commons