[2] The Hamina FACs are based at Upinniemi, and form the 7th Surface Warfare Squadron, part of the Finnish Coastal Fleet, together with the minelayers MLC Hämeenmaa, Porkkala and Pyhäranta.

Since the launch of the Helsinki-class missile boats, all fast attack craft have been named after Finnish coastal cities.

Initially the Finnish Navy considered several different compositions for the new squadron, and at one point only two Hamina-class vessels and four Tuuli-class ACV were to have been built.

[4] It was later announced in January 2025 that FNS Pori of the Hamina-class would be part of the Standing NATO Maritime Group 1 task force, during which time SNMG1 would be conducting operations for securing underwater infrastructure in the Baltic Sea.

[5][6][7] Modernization of the four Hamina-class ships began in 2018 and was completed in April 2022,[8] The MLU programme will enable the Haminas to continue their service into the mid 2030's.

The Hamina class are very potent vessels, boasting surveillance and firepower capacities which are usually found in ships twice the size.

The Hamina class have been designed and constructed as stealth ships, with minimal magnetic, heat, and radar signatures.

The Hamina class have the latest in surveillance and weapons technology all integrated into an intelligent command system.

The software of the centralized combat control system is COTS oriented, built on top of Linux running on redundant x86 rack servers, which makes maintenance and future updates and optimizations simpler.