Sigma class corvette
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The Sigma class corvette is a patrol boat with ocean capabilities.
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[edit] Modular design
The basic design, 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.
[edit] Users
- Indonesia has ordered 2 corvettes and 2 more will be built in Vlissingen.
- The Netherlands has discussed to replace some frigates with corvettes similar to these, but has decided to build Ocean Patrol Vessels (OPV's) that have a different design.
[edit] Indonesian variant
First cutting steel conducted in October 2004, christened on September 16th 2006. Expected commissioning in 2007. Building of next two corvettes commenced in October 2006 in Vlissingen (not in Surabaya as was stated earlier).
[edit] Ships of class
| Name | Pennant | Laid Down | Launched | Commissioned |
|---|---|---|---|---|
| KRI Diponegoro [1] | 365 | 24-Mar-2005 | 16-Sep-2006 | Jul 2007? |
| KRI Hasanuddin [2] | 366 | 24-Mar-2005 | 16-Sep-2006 | Nov 2007? |
| KRI Sultan Iskandar | 367 | 08-May-2006 | Dec 2007? | Sep 2008? |
| KRI Frans Kaisiepo | 368 | 08-May-2006 | June 2008? | Mar 2009? |
[edit] Indonesian Specifications
- Model: SCHELDE NAVAL PATROL 9113
- Length: 90.71 meters
- Width: 13.02 meters
- Draft: 3.6 meters
- Displacement: 1692 ton
- Max speed: 28 knots
- Cruising speed: 18 knots
- Engines: 2 x diesel engines at 8910 kW max power each; twin shaft with passive roll stablisation
- Endurance: 300 nm @ cruising speed
- Weapons:
- Surface to air missile: MBDA Mistral TETRAL
- Surface to surface missile: MBDA Excocet MM40 block 2
- Main Gun: Oto-Melara 76 mm (A position)
- Auxiliary Gun: 2 x 20 mm Vector G12 (B position)
- Torpedo: 3A 244S Mode II/MU 90 in 2 x B515 launchers
- Sensors
- Combat System: Thales TACTICOS
- Main search radar: MW08 3D multibeam surveillance radar
- Fire control radar: LIROD Mk2 tracking radar
- Data Link: LINK Y Mk2 datalink system
- Sonar: Thales Kingklip medium frequency active/passive ASW hull mounted sonar
- Naval Communications: Thales/Signaal FOCON
- Decoy/Chaff Launcher: TERMA SKWS
- Integrated Platform Management System: Imtech UniMACs 3000 Integrated Bridge System
- Accommodations: 80
- Cost: Dutch Government lend aid 340 million euro to Indonesian Government for two ships.
[edit] References
- 24-Oct-04, Thales to supply key systems for new corvettes Indonesian Navy worth 60m euro. Accessed: 28-Nov-2006 [3]
- Jane's International Defense Review, Vol 37, November 2004, Indonesian corvettes receive IPMS
- Indonesian Specifications from Schelde Shipbuilding [4]
- Product Brochure of the SCHELDE NAVAL PATROL 9113 [5]ajglajl
