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Incheon FFX Future Frigate

The new Incheon FFX was a planned class to replace Ulsan and other smaller frigates. The frigate, designed for anti-ship, anti-submarine and anti-aircraft warfare, features incomparable seakeeping and maneuverability. Advanced design concept afforded wide option for weapon combination and convenient maintenance. The ROKN planned to deploy a total of nine 2,500 ton class frigates by 2018. As of 2007 the delivery of one ship per year was slated to begin from 2010-2018. In fact, the first commissioned in January 2013.

The Ulsan, the first frigate possessed by the ROK Navy, deployed in 1981, thereby being 26 years old by 2007, the same classes of which had not been constructed since the building of Cheongju-ham in 1993. By 2007 a total of 9 ships of the class were currently being operated. Patrol frigates are also 14~25 years old so that the future frigates (FFX) are to be constructed to replace existing Ulsan class frigates (FF) and Donghae/Pohang class combat patrol craft corvette (PCC) by 2020. Existing frigates had demerits in that they are weak in anti-air defense and cannot load helicopters. The new ships will realize localization of a detection sensor for performance improvement, increased anti-air warfare capability, and availability of helicopters to improve flexibility in anti-submarine warfare capacity and mission capability.

In late 2006 the Republic of Korea Navy selected Hyundai Heavy Industries (HHI) as the preferred designer for the Future Frigate (FFX) program. The timeline for the FFX Program was as follows:

  • Request for Proposals for construction issued to HHI by early 2007;
  • A construction contract award in 2008;
  • The first six units (Phase 1) built through 2015, with the first unit being commissioned in 2011;
  • Phase 2: Nine ships built from 2015-2023;
  • Phase 3: Nine ships built from 2021-2028, completing the class at 24 units.

Initially the new frigates were planned to have the following subsystems:

  • Indigenous 3D radar similar to the SMART-S Mk2;
  • Two Ceros 200 multisensor directors;
  • Indigenous sonar;
  • Eight SSM-700K surface-to-surface missiles;
  • One Rolling Airframe Missile launcher;
  • One 76mm gun;
  • One Korean Close-in Weapon System;
  • Korean lightweight torpedoes.

In February 2007 Thales Underwater Systems was awarded a contract from STX Engine CO Ltd, Republic of Korea, for an industrial cooperation aiming at the full scale development of a new Hull Mounted Sonar (HMS) for the FFX frigate program to replace the Ulsan Class. The contract covers an industrial cooperation for design, development and manufacturing of the antenna and dome for HMS sonar, with final contract completion in 2009. Thales Underwater Systems has been a major force in the development of advanced anti-submarine warfare sonar systems for more than 40 years during which time it has established a leading position in medium frequency HMS design. The HMS is a high power and high performance keel mounted sonar, its design is largerly based on the Thales off-the-shelf products. The high performance HMS is the result of continuous efforts and improvements in the sonar domain resulting in a smart sonar system adopted by many navies.

About 20 frigates will be built to replace the country's aging patrol combat corvettes and escort ships by 2020, the Navy said in 2013, although at that time the FFX program appeared to be running a couple of years late, and would need to increase the build rate to at least three per year to come close to that goal. The "Incheon" class frigates will replace the aging fleet of "Pohang" class corvettes and "Ulsan" class frigates, and take over multi-role operations such as coast patrol, anti-submarine warfare and transport support.

The next frigates are named after a metropolitan city, province or the seat of a provincial government.



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