HAVELSAN has reinforced its position in underwater command, control, communications, computers, cyber, intelligence, surveillance and reconnaissance (C5ISR) technologies with an integrated portfolio developed for submarines, unmanned underwater vehicles (UUVs) and hybrid maritime platforms. Drawing on more than two decades of experience as the primary system provider and integrator of Naval Combat Systems for the Turkish Navy, the company continues to advance solutions aligned with the evolving Future Operating Environment (FOE).
The Future Operating Environment is defined by the integration of land, sea, air, space and cyberspace domains. Within this structure, Multi-Domain Operations (MDO) and Cross-Domain Command (CDC) concepts shape operational requirements. Underwater platforms, including submarines, UUVs and hybrid unmanned vehicles, are becoming increasingly critical due to their inherent stealth, low detectability and endurance advantages. However, their operational effectiveness depends directly on advanced command-and-control capabilities and Network Enabled Capability (NEC) architectures that ensure synchronization across domains.
To address these requirements, HAVELSAN develops Integrated Combat Management Systems (CMS) for submarines, Compact Mission Systems for mini and lightweight submarines, and Compact Mission Systems for unmanned underwater vehicles. These systems are enhanced with “Operation Intelligence” and “Operation Autonomy” capabilities. Operation Intelligence enables the detection of relationships, patterns and operational impacts through holistic onboard data processing, while Operation Autonomy applies these insights to decision-support in manned systems and operational management in unmanned platforms.
Among these solutions, SEDA, the Integrated Submarine Combat Management System stands out as a field-proven system designed specifically for conventional submarines. SEDA processes acoustic and non-acoustic sensor data, integrates navigation and weapon systems, and supports the full detection-to-engagement chain. The system enables track management, Target Motion Analysis (TMA), classification, situational awareness and weapon firing functions, while also supporting onboard training, testing, recording and analysis capabilities. SEDA has been deployed in the various Turkish submarines and foreign naval modernization programs.
For mini and lightweight submarines, HAVELSAN’s Submarine Compact Mission System provides a streamlined yet comprehensive command-and-control architecture. Designed for platforms operating with reduced crew and limited space, the system integrates steering and navigation, sensor management, weapon control and platform engineering management into a compact configuration. Decision-support functions are supported by “Operation Intelligence” and “Operation Autonomy”, ensuring operational flexibility without compromising situational awareness.
In parallel, HAVELSAN has expanded its portfolio with UUV Compact Mission Systems tailored for unmanned underwater vehicles and submersible hybrid maritime platforms. These systems can operate through land-based command centers or via native integration into ADVENT-based C2 systems. They provide compact C2 functionalities, payload management, situational awareness and autonomous decision capability, supporting evolving operational concepts within the FOE framework.
A key development within the underwater domain is ADVENT MÜREN, an Underwater Combat Management System belonging to the ADVENT product family. Designed to deliver Network Enabled Capability for submarines, ADVENT MÜREN adopts a system-of-systems approach in which all submarine subsystems contribute to the overall Combat System. The system integrates AI-powered acoustic and non-acoustic sensor management, intelligence libraries, “Operation Intelligence” and “Operation Autonomy” functions, 3D operational planning and high-redundancy architecture.
Complementing these combat systems, HAVELSAN provides a range of niche hardware solutions. The TORAKS Torpedo Fire Control System offers modular integration across submarines and other platforms, supporting firing sequence execution, safety zone management and post-launch guidance. Similarly, the Cruise Missile Fire Control Systems, natively integrated into the ADVENT CMS and equipped with a Local Control Unit for redundancy, are part of the weapon-related niche hardware.
Data integrity and distribution are ensured through SUBSTAR, the Submarine Data Distribution System. SUBSTAR collects, prioritize, and distributes navigation, communication, combat and sensor data with high-speed, low-latency performance. The system features redundancy, scalability and automatic performance analysis through integration with the HD-OPERA Automatic Performance Measurement System. SUBSTAR also supports recording as “Blackbox Functionality”.
Additional hardware solutions include Timemaster, which provides secure time synchronization using GNSS sources such as GPS, Galileo, GLONASS and BeiDou; the Antenna Distribution Unit (ADU) for optimized GNSS RF signal distribution; and the GNSS Receiver, which can operate in conjunction with HAVELSAN’s GPS Anti-Jamming System to ensure reliable positioning under harsh jamming environments.
Performance validation remains a core focus. The HD-OPERA system measures the operational performance of submarine sensors and weapons, supporting analysis and comparison with reference data while reducing Harbour Acceptance Tests (HAT) and Sea Acceptance Tests (SAT) durations. The Automatic Weapon Expulsion Measurement System (WEMS) further enhances safety by measuring and calibrating missile expulsion performance throughout a platform’s lifecycle.
Beyond technology development, HAVELSAN’s Combat System Integration Services encompass both System-to-System Integration and System-to-Platform Integration. The company provides support from concept definition and planning to hardware production, simulator development, Integrated Logistics Support, training and consultancy.
In the unmanned domain, the ÇAKA H-UMV (Hybrid-Unmanned Maritime Vehicle) represents a hybrid, submersible platform, capable of surface and underwater operations. Depending on payload configuration, missions may include ISR, maritime security support, Anti Access/ Area Denial (A2/AD) operations, kamikaze missions, mine countermeasures, special forces support, environmental monitoring and SAR support. The platform is designed for interoperability within network-enabled combat architectures.
Training infrastructure also plays a significant role. The Submarine Diving Simulator developed for Type 209 1400 PREVEZE and GÜR Class submarines enables scenario-based training under underwater and surface conditions, including emergency procedures. The simulator supports command and crew integration during complex maneuvers.
The “Submarine CIC Orchestration” concept design emphasizes ‘Human Factors (HF)’ to improve the team’s cognitive and perceptual abilities within the submarine’s brain, the CIC (Control Room). This concept design focuses on the personnel’s communication needs, the physical layout of the Submarine CIC, data visualization, decreased cognitive workload and console designs, all tailored to a data-intensive environment of Multi Domain Operations (MDO).
Through an integrated approach combining advanced Combat Management Systems, operational intelligence capabilities, niche hardware, system integration expertise, and operational field experience, HAVELSAN continues to strengthen its role in the underwater C5ISR domain, addressing the evolving requirements of the Future Operating Environment.
