Teledyne Marine successfully demonstrated its SeaBat F50 forward-looking sonar during the SeaSEC Harbour Protection Challenge Day on 2nd February in Gothenburg, Sweden.
The one-day harbour protection exercise focused on detecting and tracking underwater threats in port environments. Mounted on a seabed frame, the SeaBat F50 monitored vessels and underwater vehicle activity entering and exiting the harbour. The scenario included the detection, tracking, and visualisation of Unmanned Underwater Vehicles (UUVs), including Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs).
Designed for underwater situational awareness, the SeaBat F50 delivered a wide swath of up to 140 degrees horizontally. Its wide coverage and high ping rate enabled high-resolution, real-time imagery to support harbour and critical underwater infrastructure protection.
Morten Bernsdorf, Senior Project Manager at Teledyne Marine, said, “During the SeaSEC Harbour Challenge, the SeaBat F50 delivered a clear, real-time view of underwater activity in a busy harbour setting. Combined with a Teledyne FLIR thermal imaging camera, we were able to detect, track and follow underwater vehicles as they moved through the area. These exercises allow us to prove our technology in realistic conditions and refine how multi-sensor approaches can strengthen harbour defence.”
The demonstration served as a prelude to Navy Tech & Seabed Defence, held from 3–5 February 2026, where Teledyne Marine exhibited the SeaBat F50 on stand 150 and shared insights from the SeaSEC challenge.
At the event, the company also presented its Compact Navigator for the first time. Described as the world’s smallest and highest performing fully integrated autonomous navigation solution, the ultra-compact system is designed for small vehicles and enables inspection and survey applications not previously achievable.
Other technologies on display included a passive acoustic monitoring system, the Gavia AUV, and a Gavia Module featuring an integrated SeaBat T20 sonar.
On the opening day of the event, Teledyne Marine experts delivered two presentations. Thomas W. Altshuler, Ph.D., Senior Vice President, Global Maritime Defence Strategy and Business Development, presented on emerging UUV and sensor technologies for defensive and offensive subsea and seabed warfare. Ed Cheesman, Business Development Director, Defence and Security, discussed enablers and blockers to the rapid scale-up of maritime unmanned systems.
Delegates visiting stand 150 were able to explore Teledyne Marine’s portfolio, engage with technical specialists, and gain first-hand insight from the SeaSEC harbour challenge.
