The PREVEZE Class Submarine Mid-Life Modernization Project involves the modernization of the TCG PREVEZE, TCG SAKARYA, TCG 18 MART, and TCG ANAFARTALAR submarines, carried out by a consortium of STM, ASELSAN, HAVELSAN, and ASFAT. This project aims to equip the submarines with contemporary technology to meet modern combat needs. It includes the upgrading or replacement of various systems like the Inertial Navigation System, Floating Antenna, Satellite Communication Mast, Attack and Navigation Periscope System, among others. The project emphasizes localization and integration of indigenous weapon systems, enhancing the Turkish defense industry's experience and engineering capabilities.

Scope and Objectives of the Modernization

• Targeted Submarines: TCG PREVEZE, TCG SAKARYA, TCG 18 MART, and TCG ANAFARTALAR.
• Modernization Partners: STM, ASELSAN, HAVELSAN, and ASFAT.
• Supply and Integration Activities: Inertial Navigation System, Salinity-Depth-Density Measurement System, Floating Antenna, Satellite Communication Mast, Attack and Navigation Periscope System, Emergency Underwater Communication System, Chilled Water System, Static Converter, Air Refreshment System.

Modernization Process and Technological Innovations

• System and Equipment Improvements: Maintaining and enhancing current naval warfare capabilities.
• Localization and Domestic Production: Maximum localization in design, engineering, and integration processes by the Turkish defense industry.
• Hull Maintenance and Repair Operations: Carried out by the consortium of STM, ASELSAN, HAVELSAN, and ASFAT in Turkish shipyards.

Expected Effects and Gains from the Project

• Updating the Turkish Submarine Fleet: Upgrading the submarine fleet to meet the requirements of modern warfare.
• Experience Gain for the Turkish Defense Industry: Developing engineering capabilities to meet the needs of friendly and allied countries.