The Minister paid a visit to TCG Preveze (S-353), which is now being modernized at Golcuk Shipyard, and executed a simulated torpedo engagement with the new system.
The Ministry of Industry and Technology indicated that the project is on schedule and that the MÜREN CMS has already been installed aboard several Type 209/1400 TN (Preveze) class submarines after completing the factory acceptance tests. However, the Ministry did not specify how many submarines have been upgraded with the MÜREN CMS so far.
Submarines outfitted with MÜREN CMS are planned to enter service with the Turkish Naval Forces Command in 2022, following the completion of sea acceptance tests.
“MÜREN is a fully integrated combat management system that includes 20 various sensors, navigational systems, and weapon systems. All tasks, particularly sonar signal processing, command and control, fire control, and ship navigation, will be capable of being implemented by national means,”
Turkey’s Ministry of Industry and Technology
The MÜREN CMS modernization is taking place in tandem with the Preveze-class submarines’ mid-life upgrade.
About MÜREN Project:
The MÜREN (Milli Üretim Entegre Sualti Savaş Yönetim Sistemi – means Indigenously Produced Integrated Underwater CMS) project has been carried out by TUBITAK BILGEM (The Scientific and Technological Research Council of Turkey affiliated with the Industry and Technology Ministry) in collaboration with the Turkish Navy’s Research and Development Command (ARMERKOM), and Golcuk Naval Shipyard.
The project consists of two main programs, MÜREN-AY and MÜREN-PREVEZE.
Beginning in 2015, the MÜREN-AY program involved the delivery of one ground station system and two submarine systems. TCG Doganay (S-351) and TCG Dolunay (S-352), two of four AY-class (Type 209/1200) submarines, were outfitted with the capacity to launch modern heavyweight torpedoes, conduct target motion analyses (TMA) utilizing sonar, periscope, and ESM data, and manage tracks using an indigenous weapon control unit. The modernized AY-class submarines are currently active in service.
MÜREN-PREVEZE, a program aimed at indigenously modernizing the combat management systems of Preveze-class submarines, was initiated in 2017 with the collaboration of the same establishments as MÜREN-AY. Meteksan Savunma joined the project as a subcontractor in July 2018, and it is in charge of developing pre-electronic equipment that amplifies and transforms analog signals from sensors to digital, as well as signal processing and beam shaping hardware and software for these digital signals.
The MÜREN-PREVEZE contract includes the delivery of one ground station system and four submarine systems.
Because of confidentiality issues, officials did not provide technical information about the system.
The ISUS-83/2 CMS onboard Preveze-class submarines is being replaced with MÜREN CMS as part of the project. When finished, the Preveze-class submarines will be able to launch DM2A4 SeaHake and indigenous AKYA heavyweight torpedoes in place of Mark 24 Tigerfish.
Because the system is based on the ADVENT CMS developed by HAVELSAN and ARMERKOM, Preveze-class submarines will be compatible with network-centric infrastructure following the upgrade. The MUREN-PREVEZE CMS incorporates the ADVENT-based Link 11, Link 22, JREAP (Joint Range Extension Applications Protocol), Multiple Tactical Data Link Systems, and WAIS (Warship Automatic Identification System) subsystems.
The new system will be able to process more tracks than the current one, and the subsystems will be modernized.
Due to the improvement of electronic hardware and software using local resources, PREVEZE Class submarines will be free of foreign reliance on sonar, underwater acoustic systems, and Integrated Underwater Combat Management Systems.
MÜREN CMS is also compatible with Reis-class (Type-214 TN) air-independent propulsion capable submarines, which are under construction and scheduled to enter service in the following years.
Author’s comment: The MÜREN project is regarded as a critical step in the Turkish defense industry’s development of the national submarine dubbed “MILDEN.” After the project is completed, Turkey will be able to outfit a submarine with a sophisticated CMS in all aspects. Turkish company Meteksan Defence, on the other hand, developed the Submarine Integrated Sonar Suit for the mid-life upgrade of Preveze-class submarines. Plus, the AKYA heavyweight torpedo will be the main weapon of Turkish submarines after it enters service in 2022.
The developments mentioned above are firm steps toward increasing the submarine’s indigenization rate, and the know-how obtained from these efforts is planned to be utilized in the construction of “MILDEN,” which is expected to enter service for the Turkish Navy in the 2030s.