Overview
- Type 23 frigate HMS Somerset launched the NSM during Exercise AEGIR 25 at Norway’s Andøya Test Centre alongside Norwegian and Polish partners.
- The trial marks the weapon’s debut from a British warship and begins the replacement of the ageing Harpoon with a sea‑skimming, passively guided missile that can also strike targets ashore.
- HMS Portland and HMS Richmond are already fitted, and the UK Defence Journal reports a total of 11 Royal Navy vessels are scheduled to receive the system.
- Officials highlighted UK–Norway cooperation on the programme, with Kongsberg engineers involved in months of shipboard preparation ahead of the firing.
- Reporting differs on specifications, with the UK Defence Journal citing a system weight of about 400 kg including booster and a 120 kg warhead, and subsonic speeds up to roughly Mach 0.93.