The ''R.E. Martadinata'' class of

guided-missile frigate A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and ...

s of the

Indonesian Navy The Indonesian Navy ( id, Tentara Nasional Indonesia Angkatan Laut, , Indonesian National Military-Naval Force, TNI-AL) is the naval branch of the Indonesian National Armed Forces. It was founded on 10 September 1945 and has a role to patrol I ...

are SIGMA 10514 types of the Netherlands-designed Sigma family of modular naval vessels, named after Indonesian Admiral Raden

Eddy Martadinata Admiral Raden Eddy Martadinata (often stylized R. E. Martadinata; 29 March 1921 – 6 October 1966) was an Indonesian Navy admiral and diplomat. He was given the title of National Hero of Indonesia posthumously in 1966. He is recognized as one ...

. The frigates are each built from six modules or sections, four built at the PT PAL shipyard at

Surabaya Surabaya ( jv, ꦱꦸꦫꦧꦪ or jv, ꦯꦹꦫꦨꦪ; ; ) is the capital city of the Provinces of Indonesia, Indonesian province of East Java and the List of Indonesian cities by population, second-largest city in Indonesia, after Jakarta. L ...

, the other two at

Damen Schelde Naval Shipbuilding Damen Naval is a Dutch shipyard, and a continuation of the Koninklijke Maatschappij De Schelde, responsible for a number of ships used by the Royal Netherlands Navy. It is owned by the Damen Group. Damen Naval is situated in Vlissingen. History T ...

in the Netherlands. These warships were designed as multi-mission frigates, able to fulfill the

anti-aircraft warfare Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes Surface-to-air m ...

role with

surface-to-air missiles A surface-to-air missile (SAM), also known as a ground-to-air missile (GTAM) or surface-to-air guided weapon (SAGW), is a missile designed to be launched from the ground to destroy aircraft or other missiles. It is one type of anti-aircraft syst ...

anti-surface warfare Anti-surface warfare (ASuW or ASUW) is the branch of naval warfare concerned with the suppression of surface combatants. More generally, it is any weapons, sensors, or operations intended to attack or limit the effectiveness of an adversary's su ...

with powerful Exocet missiles,

anti-submarine warfare Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are t ...

with hull mounted sonar,

torpedoes A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, su ...

and ASW Helicopters.

History

On 5 June 2012, the Indonesian Ministry of Defense officially signed a procurement contract with DSNS to build the first Sigma 10514 frigate for the

with a value of $220 million. The procurement of this ship aims to strengthen the Indonesian Navy's arsenal and provide a deterrent effect on any party who intends to disrupt Indonesia's sovereignty and territorial integrity. The Transfer of Technology (ToT) scheme was applied during the construction of this ship to

PT PAL Indonesia PT PAL Indonesia (Persero) ( id, Penataran Angkatan Laut) ( en, Navy Shipyard) is an Indonesian state-owned enterprise that manufactures ships for military and civilian use and conducts repairs and maintenance on ships and engineering. History ...

. On February 2013, a contract for the construction of the second Sigma frigate was signed. KRI ''Raden Eddy Martadinata'' (331),

lead ship The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may ...

of her class, was commissioned on 7 April 2017 at

Tanjung Priok Tanjung Priok is a district of North Jakarta, Indonesia. It hosts the western part of the city's main harbor, the Port of Tanjung Priok (located in Tanjung Priok District and Koja District). The district of Tanjung Priok is bounded by Laksamana ...

. The second ship, KRI ''I Gusti Ngurah Rai'' (332), was launched in September 2016. ''I Gusti Ngurah Rai'' was delivered on 30 October 2017. On 2 November 2017, it was reported that there was still work that needed to be completed in both Indonesia and the Netherlands before the ship will be ready for service. There will also be an estimated three-month training period for her crew as well. The second frigate was commissioned on 10 January 2018. These ship were built without several of their main system and equipment fitted, namely VL-MICA surface-to-air missile, MM40 Exocet block III anti-ship missile, Rheinmetall Millennium close-in weapon system and their main electronic warfare system (ECM/ESM). They were planned to be installed later on ( FFBNW) during their lifetime. The class finally received their full complement of FFBNW system and equipment in December 2019 for KRI ''Raden Eddy Martadinata'' (331) and March 2020 for KRI ''I Gusti Ngurah Rai'' (332).

Characteristics

Structure

''Martadinata'' class frigates have a length of , a width of , have a maximum speed of up to , can sail up to at a speed of and have a sailing endurance of up to 20 days. These ships are equipped with modern weaponry equipment integrated into the combat management system (CMS). In addition, she also has a stealth design such as low radar cross section, low infrared signature, low noise signature, making her more difficult to be detected by other ships' radars. She is also capable of conducting surface, air, underwater, and electronic warfare.

Ships of class

References

{{Indonesian Navy active ship classes Frigates of the Indonesian Navy Frigate classes Frigates of the Netherlands Indonesia–Netherlands relations