Sigma class corvette
Encyclopedia
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 meters long and 13 meters wide, same is with the SIGMA 10513, 105 meters in length and 13 meters wide.The design was derived from the earlier High Speed Displacement hull form by MARIN Teknikk AS in the 1970s.
Users
- IndonesiaIndonesiaIndonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...
has four 9113 class corvetteCorvetteA corvette is a small, maneuverable, lightly armed warship, originally smaller than a frigate and larger than a coastal patrol craft or fast attack craft , although many recent designs resemble frigates in size and role...
s in active service by 2009 and in August 2010 has signed a deal to build frigateFrigateA frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...
PKR 105 based on SIGMA 10514 in PT PAL Shipyard Indonesia. - MoroccoMoroccoMorocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara...
has ordered two 9813 class heavy corvetteCorvetteA corvette is a small, maneuverable, lightly armed warship, originally smaller than a frigate and larger than a coastal patrol craft or fast attack craft , although many recent designs resemble frigates in size and role...
s (with VLS) and a light 10513 class frigateFrigateA frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...
based on a modified design. - VietnamVietnamVietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...
has negotiated four SIGMA in October 2011 by Prime Minister Nguyen Tan Dung's visiting to Netherlands. The Dutch Schelde shipyard in Vlissingen, Netherlands will build four Sigma corvettes for the Vietnamese Navy. The first two ships will be built in Vlissingen, and the last two will be built in Vietnam, under Dutch supervision.
Indonesian variant
SIGMA 9113The Indonesian variant is based on the Sigma 9113 design. Work on the first of the class, KRI Diponegoro, began with the first steel cutting conducted in October 2004. The ship was christened on September 16, 2006 and commissioned on July 2, 2007 by Admiral Slamet Soebijanto, Indonesian Navy Chief of Staff.
Options for 2 other units were exercised on January 2006 with the first steel cut commenced on 3 April 2006 in Damen's
Damen Group
Damen is a Dutch shipbuilding company which was founded in 1927 by Jan and Marinus Damen in a self-built workshop. In 1954 their 200th ship was delivered.-History:...
Schelde Naval Shipbuilding yard, Vlissingen-Oost yard and not in Surabaya stated earlier.
In 28 August 2007, Jane's Missiles and Rockets reported that Indonesia was having problems securing the export license for the MM-40 Exocet
Exocet
The Exocet is a French-built anti-ship missile whose various versions can be launched from surface vessels, submarines, helicopters and fixed wing aircraft. Hundreds were fired in combat during the 1980s.-Etymology:...
block II and are considering Chinese made C-802
C-802
The Yingji-82 or YJ-82 is a Chinese anti-ship missile first unveiled in 1989 by the China Haiying Electro-Mechanical Technology Academy , also known as the Third Academy...
anti-ship missile
Anti-ship missile
Anti-ship missiles are guided missiles that are designed for use against ships and large boats. Most anti-ship missiles are of the sea-skimming type, many use a combination of inertial guidance and radar homing...
s 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 with PT PAL Indonesia and Damen Schelde to build a 105 meters frigate in Indonesia based on Damen Schelde Sigma 10514 design. The frigate will be equipped with 76mm Main Canon, 12 MICA vertical launch air defence missile, MM-40 Exocet block II, Torpedo, Phalanx and Smart-S MK2 radar system.
Moroccan variant
On February 6, 2008, MoroccoMorocco
Morocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara...
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 on the April 1, 2008 with Thales Nederland
Thales Nederland
Thales Nederland B.V. is a subsidiary of Thales Group involved primarily in naval defence systems...
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, began sea trials on 6 May 2011 and was delivered on 12 September 2011. The second ship was launched on 2 February 2011, with sea trials planned for late in the year. The third ship was planned to be launched in September 2011.
Ships of class
TNI-AL / Sigma 9113 design| Name | Pennant | Laid Down | Launched | Commissioned |
|---|---|---|---|---|
| KRI Diponegoro | 365 | 24-Mar-2005 | 16-Sep-2006 | 5-Jul-2007 |
| KRI Hasanuddin | 366 | 24-Mar-2005 | 16-Sep-2006 | 24-Nov-2007 |
| KRI Sultan Iskandar Muda | 367 | 8-May-2006 | 24-Nov-2007 | 18-Oct-2008 |
| KRI Frans Kaisiepo | 368 | 8-May-2006 | 28-June-2008 | 7-Mar-2009 |
Moroccan Navy / Sigma 9813 & 10513 design
| Name | Pennant | Laid Down | Launched | Commissioned |
|---|---|---|---|---|
| Tarik Ben Ziyad | 613 | 15-Apr-2009 | 12-July-2010 | Aug-2011 |
| Sultan Moulay Ismail | 614 | Mar-2009 | 04-Feb-2011 | Feb-2012 |
| tbd | 615 | Sep-2009 | Oct-2011 | Aug-2012 |
Note: 613 now shows on AIS as Sultan Moulay Ismail.
Sigma versions
Simplified comparisons between the different Sigma models.| Specifications | Sigma 9113 | Sigma 9813 | Sigma 10513 | Sigma 10514 |
|---|---|---|---|---|
| Ordered by | ||||
| Length | 90.01 meters | 97.91 meters | 105.11 meters | 105.14 meters |
| Beam | 13.02 meters | 13.02 meters | 13.02 meters | 13.02 meters |
| Draft | 3.60 meters | 3.75 meters | 3.75 meters | 3.75 meters |
| Displacement | 1,692 tons | 2,075 tons | 2,335 tons | 2,400 tons |
| Main machinery | 2 x 8910 kW | 2 x 8910 kW | 2 x 8910 kW | 2 x 9240 kW |
| Speed (cruising) | 18 knots | 18 knots | 18 knots | 18 knots |
| Speed (maximum) | 28 knots | 28 knots | 28 knots | 30 knots |
| Endurance | 4,000 nm | 4,000 nm | 4,000 nm | 4,000 nm |
| Primary sensors | Thales MW08 | Thales SMART-S MK2 | Thales SMART-S MK2 | Thales SMART-S MK2 |