One of Türkiye’s notable unmanned naval platforms, MARLIN, has become the focus of a new international defense technology integration effort. Canada-based Kraken Robotics announced that it successfully demonstrated its KATFISH towed synthetic aperture sonar and autonomous launch-and-recovery capability from a SEFİNE-developed RD-22 class unmanned surface vessel. According to the company’s official statement published on April 7, 2026, the demonstration took place off Istanbul during the first quarter of 2026 under the coordination of SEFINE SISAM.

For the MARLIN platform, this test marks an important new phase. Kraken Robotics stated that the demonstration showcased the autonomous launch and recovery of the KATFISH system from the SEFİNE USV. The core purpose of the activity was the rapid detection and classification of mine-like objects and underwater infrastructure. In that sense, MARLIN is being positioned not only as an armed or reconnaissance-focused unmanned naval platform, but also as a modular mission asset that can support mine countermeasure and underwater surveillance operations.

Open-source defense reporting indicates that the KATFISH system produced synthetic aperture sonar imagery in real time during the test, allowing operators to classify targets more quickly. Some reports also stated that the system could provide coverage out to 200 meters on both sides and achieve resolution levels as fine as 3x3 centimeters, with imagery transmitted to a shore-based command center. However, these specific figures were not detailed in Kraken Robotics’ public statement, so they are better treated as open-source performance claims rather than officially confirmed technical data.

Another significant aspect of the demonstration is that it stands out as one of the first international cooperation examples built around the MARLIN platform. Defense reporting has noted that Kraken previously tested the KATFISH system with the Royal Navy’s ARCIMS unmanned surface vessel, and that the MARLIN integration forms part of a broader effort to present KATFISH as a modular mine countermeasure solution across multiple unmanned platforms. In this respect, the MARLIN-KATFISH test is strategically relevant because it shows that a Turkish-developed unmanned naval system can be integrated with a foreign mission payload and sensor suite.

In the wider picture, this cooperation reflects the growing importance of unmanned naval systems in mine countermeasure missions, harbor approach security, and the protection of critical underwater infrastructure. As MARLIN continues to be tested with different payloads, the platform appears to be evolving into a more versatile multi-role unmanned maritime solution. This suggests that future mission sets may extend well beyond conventional surveillance and strike roles into more specialized naval support operations.