Sweden has entered into a 60-million kronor ($6.3 million) agreement with Saab for the development of a large uncrewed undersea vehicle (LUUV). The project will cover design, assembly, and testing phases, aiming to strengthen the country’s underwater defense capabilities.
The LUUV is planned to be roughly the size of a small submarine and will be equipped with advanced sensors designed to map the seabed and detect underwater threats. Its size and capability are expected to enhance Sweden’s maritime surveillance and situational awareness.
Central to the platform will be Saab’s Autonomous Ocean Core system, a navigation technology that enables the craft to operate both on and beneath the surface without direct human control.
According to Saab, the vehicle will initially serve as a decision-support tool for naval operators and will not be armed in its first phase. The Swedish government has scheduled the platform’s first sea trials for the summer of 2026.





