Sweden contracts four Saildrone Voyagers for year-long Baltic surveillance

Sweden's Armed Forces and Defence Materiel Administration have contracted Saildrone to provide Baltic Sea surveillance using four Voyager uncrewed surface vessels through Nordic Defence Cooperation, or NORDEFCO. Each vessel is scheduled for 360 days of service, giving Sweden 1,440 contracted vehicle-days. Saildrone's 26 October announcement sets out the duration of the managed service, under which the company deploys, maintains and operates the vessels.

The Swedish Navy sets mission priorities and receives surveillance information around the clock. Saildrone personnel supervise and manoeuvre the vessels, while onboard cameras, radar and Automatic Identification System receivers help build a picture of surface traffic and identify nearby ships. Sweden's Armed Forces says the service has been contributing to its maritime picture since October.

Voyager is a roughly 10-metre platform that uses wind propulsion, solar power for its electronics and an auxiliary engine. This combination supports extended patrols with a small operating footprint on shore. The Swedish mission uses the vessels as persistent information-gathering platforms, feeding observations into naval surveillance work around the Baltic.

The deployment supports NATO's Task Force X Baltic programme and surveillance of critical undersea infrastructure following cable incidents in 2024 and 2025. The NORDEFCO arrangement provides a procurement framework that other participating Nordic countries can use, and Saildrone has registered Voyager vessels under the Danish flag to support European operations.

Swedish authorities announced the agreement ahead of a vessel presentation on 22 October. The company release follows that disclosure with the service-duration figures and builds on Saildrone's earlier six-month Danish surveillance mission. Saildrone reports 92% operational uptime during that mission, providing prior operating experience for its expanding Baltic work.