Sigma-class corvette

Sigma 9113-class corvette (KRI Diponegoro)
Class overview
Builders: Schelde Naval Shipbuilding
Operators:
Subclasses:
  • 9113 (Indonesian corvette variant)
  • 9813 (Moroccan heavy corvette variant)
  • 10513 (Moroccan light frigate variant)
  • 10514 (Indonesian frigate variant)
Built: 2005-present
In commission: 2007-present
Building: 2
Planned: 11
Completed: 7
Active: 7
Laid up: 2
General characteristics
Type: Corvette or frigate
Displacement: 1,692 tons
Length: 90.71 m (297 ft 7 in)
Beam: 13.02 m (42 ft 9 in)
Draft: 3.60 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:
  • At cruising speed of 18 kn (33 km/h; 21 mph): 3,600 nmi (6,700 km; 4,100 mi)
  • At economy speed of 14 kn (26 km/h; 16 mph): 4,800 nmi (8,900 km; 5,500 mi)
Complement: 20, 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 DR3000
  • ECM: Racal Scorpion 2L
  • Decoy: TERMA SKWS, DLT-12T 130mm decoy launchers, port, starboard
Armament:
Aviation facilities: landing pad, optional hangar

The Sigma-class corvette is a Dutch-built family of modular naval vessels, of corvette to frigate size with a blue water capability.

Modular design

The basic design of the Sigma Patrol Series can vary as the hull segments are designed as components. Ships can vary in the number of hull segments and in the order in which they are placed. Sigma stands for Ship Integrated Geometrical Modularity Approach. The ship's main dimensions are named in the types itself, SIGMA 9113 stands for 91 metres (298 ft 7 in) long and with a beam of 13 metres (42 ft 8 in). Likewise, the SIGMA 10513, is 105 metres (344 ft 6 in) in length with a beam of 13 meters.

The design was derived from the earlier High Speed Displacement hull form by MARIN Teknikk AS in the 1970s.

Users

Under construction

Failed bids

Indonesian variants

SIGMA 9113

The Indonesian variant is based on the Sigma 9113 design.[6] 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.[7]

Options for 2 other units were exercised in January 2006 with the first steel cut commenced on 3 April 2006[8] 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[9] 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.

SIGMA 10514

On the 16 August 2010, Indonesia Defense Department, signed a deal[10][11] with PT PAL Indonesia and Damen Schelde to build a 105-meter frigate in Indonesia based on Damen Schelde Sigma 10514 design. For the first ship, 5 modules for the ship will be build in Indonesia and the Dutch manufacturer Damen Schelde will build 2 modules while for the second ship the Indonesians will build 6 modules and Damen Schelde will build 1 module. The first hull will only be equipped with guns (without major weapons) and the second hull is complete with major weapons such as 76mm Main Canon, 12 MICA vertical launch air defence missile, MM-40 Exocet block II, Torpedo, and SMART-S MK2 radar system.[12] Though the Indonesian Navy announced that it will build two destroyer escorts referring to the SIGMA 10514. On the Indo Defence 2012 exposition a model was revealed showing the phalanx and ASW mortar replaced by a single 35 mm Oerlikon Millennium Gun system,[13] also the 76mm had a stealth cupola. Some reported that the VLS missiles will be Aster-15 instead of MICA, due to these changes the ships role also changed from ASW to AAW.

On 1 February 2013 it was announced that a second unit will be build by Damen Schelde Naval Shipbuilding and PT PAL Surabaya, the second contract includes torpedo tubes, combat control room and a couple of surface weapons. As of December 2015, the first ship, KRI RE Martadinata (331), was 85% complete and the ship was launched on 18 January 2016.[14][15][16][17][18][19][20][21]

Moroccan variants

On 6 February 2008,[22] Morocco signed a USD$1.2 billion contract with Schelde Naval Shipbuilding for two Light frigate SIGMA 9813 and one Light frigate SIGMA 10145 which are modified versions of the existing Sigma-class design.

A subsequent contract was signed[23] on 1 April 2008 with Thales Nederland for the supply and installation of the command and control and sensor package for the ships. The package included TACTICOS combat management system, SMART-S Mk2 surveillance radar, LIROD Mk2 tracking radar, Thales KINGKLIP sonar system, IFF system, Integrated communication system comprising external communication system and FOCON internal communication system, two Target Designation Sights, VIGILE ESM system, SCORPION ECM system, and the integrated navigation system.

The first frigate for Morocco, Tarik ben Ziyad, was launched in July 2010,[24] began sea trials on 6 May 2011[25] and was delivered on 12 September 2011.[26] The second ship was launched on 2 February 2011,[24] with sea trials planned for late in the year.[25] The third ship was planned to be launched in September 2011.[25]

Ships of class

TNI-AL / Sigma 9113 design

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

TNI-AL / Sigma 10514 design

Name Pennant Laid down Launched Commissioned Notes
KRI RE Martadinata 331 January 2014 18 January 2016 Planned for 2017 Raden Edi Martadinata, a National Hero From Bandung and One of the founders Of Indonesian Navy
KRI IG Ngurah Rai 332 tba tba Planned for 2017 I Gusti Ngurah Rai , a National Hero From Bali Island and Leader on Puputan War against Dutch Colonialist

Moroccan Navy / Sigma 9813 & 10513 design

Name Pennant Laid down Launched Commissioned
Tarik Ben Ziyad 613 15 Apr 2009 12 July 2010[27] 10 Sep 2011[28]
Sultan Moulay Ismail 614 Mar 2009 4 Feb 2011[29] 10 Mar 2012[30]
Allal Ben Abdellah 615 Sep 2009 Oct 2011 8 Sep 2012[31]

Note: 613 now shows on AIS as Sultan Moulay Ismail.

Sigma versions

There are three types of Sigma combatants

Simplified comparisons between the different Sigma models.

Specifications Compact Sigma 5910[32] Compact Sigma 7310 [33] Sigma 9113[34] Sigma 9813[35] Sigma 9814[36][37] Sigma 10513[38] Sigma 10514[39]
Ordered by - -  Indonesian Navy  Royal Moroccan Navy  Vietnam People's Navy (cancelled)  Royal Moroccan Navy  Indonesian Navy
Type Fast Attack Corvette Fast Attack Corvette Corvette Frigate Frigate Frigate Frigate
Build - - 4 2 0 1 0 (2 on order)
Length 58.6 meters 74.2 meters 90.01 meters 97.91 meters 99.91 meters 105.11 meters 105.11 meters
Beam 10.00 meters 10.00 meters 13.02 meters 13.02 meters 14.02 meters 13.02 meters 14.02 meters
Draft 3.10 meters 3.10 meters 3.60 meters 3.75 meters 3.75 meters 3.75 meters 3.75 meters
Displacement 750 tons 900 tons 1,692 tons 2,075 tons 2,150 tons 2,335 tons 2,365 tons
Main machinery 3 x - 4x 3900  kW 2 x 8910 kW 2 x 8910 kW tbd 2 x 8910 kW 2 x 9240 kW
Speed (cruising) 18 knots 18 knots 18 knots 18 knots tbd 18 knots 18 knots
Speed (maximum) 32 knots 34 knots 28 knots 28 knots tbd 28 knots 28 knots
Endurance 2,000  nm 2,000  nm 4,000 nm 4,000 nm tbd 4,000 nm 5,000 nm
Primary sensors Thales Smart-S MK2 Thales NS-100 Thales MW08 Thales SMART-S MK2 Thales SMART-S MK2 Thales SMART-S MK2 Thales SMART-S MK2
Complement 37 50 80 91 103 110 122
Helicopter none none deck only deck and hangar (9 ton) deck and hangar deck and hangar (9 ton) deck and hangar (10 ton)
Status - - In Service In Service Under construction In Service Under Construction

There are multiple new Sigma designs released in early 2015 of which little is known, these are the:

Sigma 8313 / Sigma 8011 / Sigma 7613 / Sigma 6610

They are likely to be part of the Compact SIGMA series, a new series small sized combatants with shorter range and up to 2 weeks mission endurance with the same combat systems as the larger Sigmas.[40]

See also

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. Retrieved 2016-01-19.
  3. "Imtech Naval Projects Reference List" (PDF). Marine.imtech.nl. Retrieved 2016-01-19.
  4. "Egyptian Navy would be about to order 4 to 6 Gowind Combat Corvettes from DCNS". Navyrecognition.com. Retrieved 2016-01-19.
  5. "Defense Studies". Defense-studies.blogspot.com. Retrieved 2016-01-19.
  6. "Indonesian Specifications of the Sigma Class coverttes". Scheldeshipbuilding.com. Retrieved 2016-01-19.
  7. "ANTARA News: Navy chief takes delivery of corvette made in Netherlands". Antara.co.id. Retrieved 2016-01-19.
  8. "Two SIGMA 9113 corvettes more for Indonesia" (PDF). Archived from the original (PDF) on October 1, 2006.
  9. "JMR: Indonesia evaluates C-802". Janes.com. Retrieved 2016-01-19.
  10. "JNR: Indonesia selects Damen for frigate contract". Janes.com. Retrieved 2016-01-19.
  11. "Damen Schelde Naval Shipbuilding". Damenaval.com. Retrieved 2016-01-19.
  12. "DEFENSE STUDIES". Defense-studies.blogspot.com. Retrieved 2016-01-19.
  13. "Garuda Militer". Garudamiliter.blogspot.com. Retrieved 2016-01-19.
  14. "DEFENSE STUDIES: Kemhan Memproses Kontrak Pembelian PKR 105 Kedua dengan Damen Schelde". Defense-studies.blogspot.com. Retrieved 2016-01-19.
  15. "The Indonesian Navy Task Force of PKR Starts its Mission in the Netherlands". Defense-studies.blogspot.com. April 15, 2013. Retrieved 2016-01-19.
  16. "Two-Ship Programme Firms Up for Indonesian PKR Frigate". Defense-studies.blogspot.com. May 17, 2013. Retrieved 2016-01-19.
  17. "Dutch Firm Gets Green Light for Military Exports to Indonesia". Defense-studies.blogspot.com. June 5, 2013. Retrieved 2016-01-19.
  18. "Indonesia signs for Thales TACTICOS system". Garudamiliter.blogspot.com. September 10, 2013. Retrieved 2016-01-19.
  19. "Thales to supply mission suite for Indonesian Navy (TNI-AL) PKR vessels". Navyrecognition.com. November 18, 2013. Retrieved 2016-01-19.
  20. "Damen (DSNS) starts steel cutting for SIGMA 10514 PKR Frigate for Indonesia Navy (TNI AL)". Navyrecognition.com. January 15, 2014. Retrieved 2016-01-19.
  21. "Damen Schelde Naval Shipbuilding lays keel of first SIGMA 10514 PKR Frigate for TNI AL (Indonesia)". Navyrecognition.com. April 19, 2014. Retrieved 2016-01-19.
  22. Joris Janssen Lok (8 February 2008). "Morocco's Dutch Frigate Order is Confirmed". Aviation Week & Space Technology.
  23. Frank van de Wiel (7 April 2008). "Thales awarded contract for Moroccan OPV". Thales Nederland. Archived from the original on April 13, 2008.
  24. 1 2 "The Netherlands: Second Multi-Mission Frigate Launches at Damen Shipyard for Moroccan Navy". Shipbuilding Tribune. 4 March 2011. Archived from the original on 2 October 2011. Retrieved 2 October 2011.
  25. 1 2 3 "First Multi Mission Frigate for Royal Moroccan Navy Starts Sea Trials". Shipbuilding Tribune. 12 May 2011. Archived from the original on 2 October 2011. Retrieved 2 October 2011.
  26. "Damen Schelde Naval Shipbuilding Delivers SIGMA Class Frigate to Royal Moroccan Navy". Shipbuilding Tribune. 12 September 2011. Archived from the original on 2 October 2011. Retrieved 2 October 2011.
  27. "News - Damen Schelde Naval Shipbuilding". Damennaval.com. 2010-07-18. Retrieved 2011-12-28.
  28. "Moroccan Navy receives first Sigma Class frigate". Naval Technology.
  29. "News - Damen Schelde Naval Shipbuilding". Damennaval.com. Retrieved 2011-12-28.
  30. "Moroccan Navy receives second Sigma-class frigate". Naval Technology.
  31. "Moroccan Navy commissions its third SIGMA-class frigate". Naval Technology.
  32. Archived March 18, 2015, at the Wayback Machine.
  33. Archived March 18, 2015, at the Wayback Machine.
  34. Archived September 11, 2014, at the Wayback Machine.
  35. "SIGMA 9813 Sultan Moulay Ismail Allal Ben Abdellah Morocco Royal Moroccan Navy البحرية الملكية Frégates Multi-Missions Marocaines FMMM DSNS DAMEN Schelde Naval Shipbuilding datasheet pictures photos video specifications". Navyrecognition.com. Retrieved 2016-01-19.
  36. "Vietnam Navy selects MBDA Exocet and VL Mica missiles for its Sigma 9814 Corvettes". Navyrecognition.com. November 4, 2013. Retrieved 2016-01-19.
  37. "Design of future Damen SIGMA 9814 Corvettes for Vietnamese Navy revealed". Navyrecognition.com. March 1, 2014. Retrieved 2016-01-19.
  38. "SIGMA 10513 Tarik Ben Ziad Frigate طارق بن زياد Morocco Royal Moroccan Navy البحرية الملكية Frégates Multi-Missions Marocaines FMMM DSNS DAMEN Schelde Naval Shipbuilding datasheet pictures photos video specifications". Navyrecognition.com. Retrieved 2016-01-19.
  39. "SIGMA 10514 PKR Frigate Indonesia Indonesian Navy TNI AL Perusak Kawal Rudal PT PAL DSNS DAMEN Schelde Naval Shipbuilding KRI datasheet pictures photos video specifications". Navyrecognition.com. Retrieved 2016-01-19.
  40. "DAMEN introduced the new "Compact SIGMA" line of corvettes during DSEI 2013". Navyrecognition.com. Retrieved 2016-01-19.

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