Kraken Robotics Demonstrates Autonomous Sonar System with Turkish Navy
Kraken Robotics has successfully integrated its KATFISH towed sonar system onto Sefine’s RD-22 unmanned surface vessel (USV) off the coast of Istanbul. This demonstration marked a significant achievement in autonomous maritime operations, as the system was launched and recovered without human intervention, according to Unmanned Systems Technology.
The trials took place in the first quarter of 2026, with several navies and government officials present to observe the event. This is the second instance within six months where Kraken has successfully deployed its mine-hunting technology on a foreign USV.
Details of the Demonstration
The demonstration involved the KATFISH synthetic aperture sonar towfish and its autonomous launch and recovery system, both mounted on the RD-22. Sefine SISAM, the unmanned systems research division of the Turkish shipyard, managed the mission planning and local integration.
The KATFISH system captured sonar imagery at a resolution of 3 cm by 3 cm across a 200-meter swath, providing approximately 1,312 feet of total coverage. This data was transmitted in real-time to a shore-based command center, allowing operators to classify underwater contacts as they were detected, focusing on the identification of mine-like objects and critical underwater infrastructure.
Technical Specifications
The KATFISH system is designed for high-speed operations, capable of functioning at speeds up to 10 knots (approximately 11.5 mph). The towfish measures 17.5 feet in length and has a diameter of 6 inches, with its “eye” section measuring about 15 inches by 35 inches. The system produces real-time sonar imagery and 3D bathymetry, achieving area coverage rates of 3.5 square kilometers per hour.
The RD-22 is part of Sefine’s Constellation-class USV family, which is designed for various roles, including anti-submarine warfare and mine countermeasures. Although specific details about the RD-22 have not been publicly released, the Constellation-class vessels are approximately 50 feet long and can exceed speeds of 40 mph.
Strategic Context in the Black Sea
The ongoing conflict between Russia and Ukraine has resulted in a mine-contaminated Black Sea, with thousands of naval mines drifting into Turkish waters. This situation has prompted Turkey, Romania, and Bulgaria to establish the Black Sea Mine Countermeasures Task Group to coordinate clearance operations. Turkey possesses a robust mine countermeasures fleet, positioning itself as a leader in post-war demining efforts in the region.
Given the restrictions imposed by the Montreux Convention on non-Black Sea NATO navies, Turkey’s capabilities are crucial for regional mine clearance operations. The integration of Kraken’s KATFISH system into Turkish USVs presents a valuable tool for mine countermeasure planners, allowing for safer operations without risking personnel near suspected mines.
Future Prospects for Kraken Robotics
This demonstration follows a previous successful integration of the KATFISH system with a Royal Navy USV in November 2025. Kraken Robotics aims to expand its market presence by providing sonar and autonomous systems that can be adapted to various naval platforms across NATO forces.
While the technical capabilities demonstrated in Istanbul are promising, the company will need to secure contracts with interested navies to fully realize its potential in the unmanned mine countermeasure space.
Photo credit: Kraken