Saab Completes Sea Trials of Large Uncrewed Underwater Vehicle

Oct 16, 2026
Saab, FMV and the Swedish Armed Forces have built and tested a large uncrewed underwater vehicle demonstrator less than one year after the contract award.

Saab said in a press release that it developed, built and tested a Large Uncrewed Underwater Vehicle demonstrator with the Swedish Defence Materiel Administration (FMV) and the Swedish Armed Forces. The organizations completed the project phase and sea trials less than one year after the contract award.

The demonstrator uses Saab's Autonomous Ocean Core control system for autonomous surface and underwater operations. Saab says Swedish expertise in submarine design and sensor integration helped take the project from concept to sea trials. The demonstrator is meant to operate alongside existing naval platforms, including submarines.

The next phase will focus on more advanced capabilities, including software, sensors and autonomous functions. FMV leads the project, which will inform Swedish authorities as they consider the acquisition and operational use of autonomous underwater systems.

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