View source for Mk 74 Tartar FCS

[[File:Mk 74 GMFCS.png|thumb|374px]]

== History ==
The Mk 74 Tartar GMFCS (Guided Missile Fire Control System) was first fitted on the Charles F Adams class in 1961. The fire control system was designed for use with the [[RIM-24 Tartar]] missile. The fire control system can only be used to direct missiles. Early in development this was only the Tartar missile, but from the middle 1960's the USN started to replace this missile with the [[RIM-66 Standard MR]], which was longer ranged, more accurate and more reliable. 

The Mk 74 FCS uses 1,2 or more [[AN/SPG-51]] missile directors. In addition, the system works with information from the ships search radars for target acquisition and intercept. 

Most ships using the Mk 74 FCS used an [[Mk 13 GMLS]], but early ships used the [[Mk 11 Tartar GMLS]]. Some light ships used the [[Mk 22 GMLS]], in which case they only used a single director. On the Kidd class, the Mk 26 GMLS was used. 

after the NTU (New Threat Update) of the California, Virginia and Kidd class, their Mk 74 fire control system was updated to Mod 14 or Mod 15. This allowed the ships to fire [[RIM-66 Standard MR]] 2 (SM-2) missiles and upgraded the amount of targets the tartar system could attack at the same time. This was done by using the inertial guidance on the SM-2 and by time sharing the illumination radars, so the SPG-51 radars were only required to acquire a lock on the target and illuminate it just before intercept

Ships using the Mk 74 FCS are often described as Tartar ships, even if they have never used the Tartar missile itself. 

== Used on ==
* [http://www.shipbucket.com/drawings/5876 DDG-2 Charles F. Adams ]
* [http://www.shipbucket.com/drawings/5904 CG-10 Albany]
* [http://www.shipbucket.com/drawings/6156 Cassard class]
* Mitscher class
* [http://www.shipbucket.com/drawings/5881 Charles F. Adams class]
* [http://www.shipbucket.com/drawings/5937 California class]
* [http://www.shipbucket.com/drawings/6790 Lutjens class]
* [http://www.shipbucket.com/drawings/3465 Perth class]
* [http://www.shipbucket.com/drawings/3479 Adelaide class]
* [http://www.shipbucket.com/drawings/2658 Tromp class]
* [http://www.shipbucket.com/drawings/5843 Durand de la Penne class]
* [http://www.shipbucket.com/drawings/1874 ADF 1973] (proposed)
* [http://www.shipbucket.com/drawings/7424 Brooke class]
* [http://www.shipbucket.com/drawings/5856 Kidd class]
* [http://www.shipbucket.com/drawings/5912 Virginia class]


== Affiliated systems == 
* [[RIM-24 Tartar]]
* [[RIM-66 Standard MR]]
* [[AN/SPG-51]]
* [[Mk 11 Tartar GMLS]]
* [[Mk 13 GMLS]]
* [[Mk 22 GMLS]]

== Part description ==
As the fire control system itself (the computers) are not visible in a shipbucket drawing, the part image on this page shows a compilation of the parts directly connected to this fire control system. These can also be found on their own pages.

== See also ==

[[Category:Components]]
[[Category:Fire control]]
[[Category:United States Navy components]]