Kongsberg Maritime Offers 56-Meter Unmanned Trawlers With Thales Sonar for UK Arctic Submarine Patrols
Kongsberg’s Arctic Hunter repurposes commercial trawlers for persistent unmanned ASW in the Norwegian Sea. The proposal leverages existing hulls and Thales sonar but leaves forward-basing logistics and acoustic validation gaps. Procurement timelines now determine whether ten units reach operational status before 2030.
The Arctic Hunter concept strips commercial trawler hulls of fish-processing gear and installs autonomy systems, secure comms, and acoustic-signature-reduced propellers to support anti-submarine warfare. Ten vessels would operate from a forward hub west of the Bear Gap, cutting transit time from UK ports while feeding data to crewed Type 26 frigates under construction by BAE Systems. Kongsberg frames the work as maritime engineering rather than naval armament, leveraging proven North Atlantic commercial designs.
UK Type 92 requirements explicitly seek low-cost unmanned adjuncts for hybrid fleet operations. The 1940s whaler conversion precedent cited in the proposal aligns with current procurement patterns favoring rapid adaptation of existing hulls over bespoke builds. Contract records show similar autonomy retrofits already tested on smaller platforms by the Royal Navy, indicating the trawler scale-up targets volume rather than novelty.
Basing ten hulls near Svalbard raises sustainment questions around fuel, data links, and repair in contested waters that the Defense News coverage leaves unexamined. Russian Northern Fleet submarine routes through the gap are documented in open-source tracking data, yet independent verification of sonar performance claims remains absent from company statements.
Next steps hinge on UK Ministry of Defence down-selection for Type 92 demonstrators, expected within 18 months, with potential integration testing alongside Type 26 sea trials scheduled for 2027.
Sources (3)
- [1]Primary Source(https://www.defensenews.com/global/europe/2026/11/09/firm-bets-on-converted-fishing-trawlers-to-tackle-russian-submarines-in-the-arctic/)
- [2]Supporting Source(https://www.kongsberg.com/maritime/news/2026/arctic-hunter-concept/)
- [3]Supporting Source(https://www.gov.uk/government/publications/royal-navy-uncrewed-systems-requirements-2025)