FCS-3

FCS-3 is an integrated naval weapons system developed by the Japanese Defense Ministry for the Japan Maritime Self-Defense Force.

[1] After a prolonged sea trial on board JS Asuka, this system was introduced in 2007 on the JS Hyūga (DDH-181).

The enhanced version, FCS-3A, was employed on the Akizuki-class destroyers.,[2] and limited-function version, OPS-50, was also delivered for the Izumo-class helicopter destroyers.

The fire-control function are omitted in the OPS-50 system, so they have only one set of antennas operating C-band.

[3] The Asahi-class destroyer features an FCS-3A radar that uses Gallium nitride technology to improve its performance.