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SSK Andrasta Coastal Submarine, France
The Andrasta design draws heavily on the proven configuration and systems adopted for the Scorpene submarine.
The 19-crew, 855t displacement, Andrasta submarine, announced by DCNS in September 2008, has been optimised for littoral operations in coastal waters, but remains a formidable adversary in blue (deep) water environments.
The submarine is named after Andrasta, the Celtic goddess of war whose name means victorious or invincible. The prime contractor, DCNS, considers that the Andrasta has no equivalent for littoral missions in terms of manoeuvrability and stealth.
The submarine design draws heavily on the proven configuration and systems adopted for the Scorpene family and has about 70% commonality with the Scorpene. The Andrasta surfaced displacement is 855t compared to the 1,790t to 2,010t displacement of the Scorpene. The submarine incorporates the same level of safety, stealth signatures and systems integration as the Scorpene.
"The SSK Andrasta submarine has been optimised for littoral operations in coastal waters."
The Andrasta can lurk on the seabed in coastal waters where the water depth is typically less than 100m. At a speed of 4kt the range is more than 3,000nm and more than 1,800nm at 8kt.
Andrasta is being presented to world markets at about half the cost of attack submarines such as the Scorpene. The Andrasta design can incorporate extra performance options which are not mandatory for littoral missions but which customer countries may require, without degrading the submarines efficiency.
For specials operations, the Andrasta has a deployment airlock for combat swimmers, electronic warfare and intelligence gathering systems.
Andrasta missions
The submarine missions cover anti-submarine warfare, anti-surface warfare, intelligence gathering, special operations, offensive mine mooring, covert tracking of illegal activities, single ship operations and cooperative operations with other ships or maritime assets. The Andrasta is equipped to communicate easily with other assets and command centres.
Design
The double-hull structure gives good survivability and surfaced sea keeping characteristics. An X-configuration rudder has independently operated surfaces for a high level of manoeuvrability including a small turning radius.
The small hull helps contribute to the submarine's stealth characteristics. The submarine has a diving depth to 200m and a submerged endurance of five days. It also has a very low acoustic and visual signature.
Command and control
The Andrasta is equipped with the DCNS SUBTICS submarine tactical integrated combat system. SUBTICS systems are in operation aboard Scorpene submarines of the Chilean Navy and Agosta 90B submarines for the Pakistan Navy
The combat management system is integrated with the sonar and other sensors (optical, optronic, electronic support measures, radar) and carries out the location and identification of vessels, target tracking, tactical analysis, decision making, action management, exchange of tactical data via datalinks, the control of weapons systems and engagement of targets.
"Andrasta's double-hull structure gives good survivability and surfaced sea keeping characteristics."
The submarine is equipped with high-precision navigation and surveillance systems for operation in littoral waters. Surveillance missions can be successfully carried out while the submarine is at rest on the seabed.
Weapons
The Andrasta can accommodate new-generation heavyweight torpedoes such as the Black Shark, anti-ship missiles such as the Exocet SM-39 and a mine-laying system. The torpedoes and missiles are stored and carried in the six forward torpedo tubes. The small hull size of the submarine does not accommodate torpedoes and missiles for reload.
Special forces
The Andrasta submarines, which can carry two passengers plus a team of six divers, can be deployed for special forces missions which gives the Andrasta an enhanced attack capability comparable to larger submarines. The submarine is fitted with a lock-out / lock-in chamber for combat swimmers.
Performance:
Diving Depth Over 200m
Maximum Submerged Speed Over 15kt
High-Speed Autonomy 3 hours
Submerged Endurance Up to 5 days
Transit Range Over 3,000nm
Typical Mission Duration 5 days
Ula class submarine
Ula class submarine
Class overview
Builders: Kongsberg/Nordseewerke
Operators: Royal Norwegian Navy
Preceded by: Kobben class
Built: 19871992
In commission: April 1989[1] present
Completed: 6
General characteristics
Type: Submarine
Displacement: Surface: 1,040 tons
Submerged: 1,150 tons
Length: 59 m (194 ft)
Beam: 5.4 m (18 ft)
Draft: 4.6 m (15 ft)
Propulsion: Diesel-electric
2 MTU 16V 396 diesel engines (970kW each)
1 electric motor, 6,000 shp
Speed: Surface: 11 kn (20 km/h)
Submerged: 23 kn (43 km/h)
Range: 5,000 miles at 8 knots (15 km/h)
Test depth: 200+m (700+ft)[2]
Complement: Approx. 1821[citation needed]
Sensors and
processing systems: Radar: Kelvin Hughes 1007 Surface Search
Sonar: Atlas Elektronik CSU83
Thomson Sintra flank array
Armament: 8 bow 21" torpedo tubes
14 Atlas Elektronik DM2A3 torpedoes
Notes: Unit cost: 700,000,000 NOK[1]
The Ula class is a Norwegian submarine type which was assembled in Germany in the late 1980s and early 1990s. The class, consisting of 6 vessels, is currently the only submarine type in service with the Royal Norwegian Navy.Contents
History
The ordering of a new Norwegian submersible design stemmed from a 1972 decision to modernize the Royal Norwegian Navy (RNoN) submarine flotilla, which then consisted of the aging Kobben class submarines.
The construction of the vessels was an international project. The combat systems were made in Norway by Kongsberg, the attack sonar is German and the flank sonars French. The hull sections were produced in Norway, and then assembled in Germany by Thyssen Nordseewerke, Emden. In Germany, the design is known as the U-Boot-Klasse 210.
When commissioned Ulas were the first Norwegian submarines with bedding for the entire crew and a shower.
The Ula class submarines are among the most silent and maneuverable submarines in the world. This, in combination with the relatively small size, makes them difficult to detect from surface vessels and ideal for operations in coastal areas. The Ula class submarines are regarded as both the most effective and cost-effective weapons in the RNoN.
Missions
In recent years, several submarines of the Ula class have been deployed in the Mediterranean Sea in support of the NATO Operation Active Endeavour, where their intelligence gathering ability have surpassed expectations. Their operational availability proved to be the highest of all the ships taking part in the operation. However, this deployment has highlighted the need to make the Ula class submarines better able to keep temperatures from getting too high for the crew when operating in warm waters. As a response to this, the HNoMS Ula have now been "tropicalized" by installing new cooling systems, and two more of the class are due for "tropicalization".
Future plans
During the period 2006-2008, the Ula class will be modernized. Most notably, the submarines will get new communication equipment (Link 11), new electronic warfare support measures and a periscope upgrade. In May 2008, the contract for new sonars was signed. The first submarine will have new sonar in 21 months time, and the last in 52 months (mil.no article). The Ula class will probably be kept in service until 2020.
Vessels
Six submarines were delivered (1989-1992) to the RNoN. All of them have their home base at Haakonsvern in Bergen. The boats are all named after places in Norway, with the exception of the S305, Uredd, which literally translates to "unafraid" or "unfearing." The ship prefix for RNoN vessels is KNM (Kongelig Norsk Marine, Royal Norwegian Navy) in Norwegian, HNoMS (His Norwegian Majesty's Ship) in English
) and taken care of by the strike package accompanying the armada.
