Diponegoro-class corvette

The Diponegoro class of guided-missile corvettes of the Indonesian Navy are SIGMA 9113 types of the Netherlands-designed Sigma family of modular naval vessels, named after Indonesian Prince Diponegoro. Currently there are four Diponegoro-class corvette in service.

KRI Diponegoro, lead ship of the class
Class overview
NameDiponegoro class
BuildersDamen Schelde Naval Shipbuilding
Operators Indonesian Navy
Preceded by Fatahillah class Dewantara class
Succeeded by Bung Tomo class
Built2005–2008
In commission2007–present
Planned4
Completed4
Active4
General characteristics (Corvette 9113)
TypeMulti-purpose corvette / frigate
Displacement1,692 tons
Length90.71 m (297 ft 7 in)
Beam13.02 m (42 ft 9 in)
Draft3.60 m (11 ft 10 in)
Propulsion
  • 2 × SEMT Pielstick 20PA6B STC rated at 8910 kW each driving a lightweight Geislinger coupling combination BE 72/20/125N + BF 110/50/2H (steel – composite coupling combination)
  • 4 × Caterpillar 3406C TA generator rated at 350 kW each
  • 1 × Caterpillar 3304B emergency generator rated at 105 kW
  • 2 × shaft with Rolls Royce Kamewa 5 bladed CP propeller
  • 2 × Renk ASL94 single step reduction gear[1] with passive roll stabilization
Speed
  • Maximum: 28 knots (52 km/h; 32 mph)
  • Cruising: 18 knots (33 km/h; 21 mph)
  • Economy: 14 knots (26 km/h; 16 mph)
Range
  • Cruising speed at 18 kn (33 km/h; 21 mph): 3,600 nmi (6,700 km; 4,100 mi)
  • Economy speed at 14 kn (26 km/h; 16 mph): 4,800 nmi (8,900 km; 5,500 mi)
Complement20, up to 80
Sensors and
processing systems
  • Combat System: Thales Group TACTICOS[2] with 4 x Multifunction Operator Console Mk 3 2H
  • Search radar: MW08 3D multibeam surveillance radar
  • IFF: Thales TSB 2525 Mk XA (integrated with MW08)
  • Navigation radar: Sperry Marine BridgeMasterE ARPA radar
  • Fire control radar: LIROD Mk 2 tracking radar
  • Data Link: LINK Y Mk 2 datalink system
  • Sonar: Thales UMS 4132 Kingklip medium frequency active/passive ASW hull mounted sonar
  • Internal Communications: Thales Communication's Fibre Optical COmmunications Network (FOCON) or EID's ICCS where on-board users have access to internal and/or external communication channels and integrated remote control of communications equipment
  • Satellite Comms: Nera F series
  • Navigation System: Raytheon Anschutz integrated navigation
  • Integrated Platform Management System: Imtech UniMACs 3000 Integrated Bridge System[3]
Electronic warfare
& decoys
  • ESM: Thales VIGILE 100
  • ECM: Racal Scorpion 2L
  • Decoy: TERMA SKWS, DLT-12T 130mm decoy launchers, port, starboard
Armament
Aviation facilitiesLanding pad, optional hangar

History

The Indonesian variant is based on the Sigma 9113 design.[4] Work on the first of the class, KRI Diponegoro, began with the first steel cutting conducted in October 2004. The ship was christened on 16 September 2006 and commissioned on 2 July 2007 by Admiral Slamet Soebijanto, Indonesian Navy Chief of Staff.[5]

Options for two other units were exercised in January 2006 with the first steel cut commenced on 3 April 2006[6] in Damen's Schelde Naval Shipbuilding yard, Vlissingen-Oost yard and not in Surabaya stated earlier.

On 28 August 2007, Jane's Missiles and Rockets reported[7] that Indonesia was having problems securing the export license for the MM-40 Exocet block II and are considering Chinese made C-802 anti-ship missiles as alternatives. However, the ships have already been delivered with the Exocet missiles. In 2019 MM40 Exocet Block III were launched from KRI Sultan Iskandar Muda (367).[8]

Ships of class

Indonesian Navy / Sigma 9113 design

Name Pennant Laid down Launched Commissioned Notes
KRI Diponegoro 365 24 March 2005 16 September 2006 5 July 2007 Diponegoro, a National Hero from Central Java
KRI Sultan Hasanuddin 366 24 March 2005 16 September 2006 24 November 2007 Sultan Hasanuddin, a National Hero from South Sulawesi
KRI Sultan Iskandar Muda 367 8 May 2006 24 November 2007 18 October 2008 Iskandar Muda, a National Hero from Aceh
KRI Frans Kaisiepo 368 8 May 2006 28 June 2008 7 March 2009 Frans Kaisiepo, a National Hero from Papua and the fourth Governor of Papua

References
  1. "RENK AG Press Release, September 2006, Diesel Propulsion Drives: When perfection arises from tradition". Renk.de. Retrieved 2016-01-19.
  2. "Thales to supply key systems for new corvettes Indonesian Navy worth 60m euro". Thales-nederland.nl. Archived from the original on 2012-02-09. Retrieved 2016-01-19.
  3. "Imtech Naval Projects Reference List" (PDF). Marine.imtech.nl. Archived from the original (PDF) on 2007-09-28. Retrieved 2016-01-19.
  4. "Indonesian Specifications of the Sigma Class coverttes". Scheldeshipbuilding.com. Archived from the original on 2011-09-28. Retrieved 2016-01-19.
  5. "ANTARA News: Navy chief takes delivery of corvette made in Netherlands". Antara.co.id. Archived from the original on 2009-04-10. Retrieved 2016-01-19.
  6. "Two SIGMA 9113 corvettes more for Indonesia" (PDF). Archived from the original (PDF) on October 1, 2006.
  7. "JMR: Indonesia evaluates C-802". Janes.com. Retrieved 2016-01-19.
  8. "Kapal Perang TNI Luncurkan Peluru Kendali Exocet MM 40 Block-3". SINDOnews.com (in Indonesian). Retrieved 2021-02-03.
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