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Finland’s MoD confirmed completion of the first of four HAMINA class missile boat mid-life upgrade (MLU) project. The HAMINA class upgrade programme started in early 2018, adding new anti-submarine warfare (ASW) and surface defence capabilities, should reach completion in 2021.

Prime contractor Patria’s division Systems delivered the Tornio to the Finnish Navy during a ceremony held at the Upinniemi naval base after starting work on the MLU almost two years earlier – and almost two decades after its original delivery from the Aker Finnyards (later STX Finland, then Meyer Werft, USC).

Patria handed over the vessel after completing a series of a rigorous regimen of naval tests and trials in 2019 to proof the vessels operational capabilities and the MLU’s effectiveness. Subcontractors on the MLU include Teijo Finland-based Oy Western Shipyard Limited.

While Patria System is responsible for integration of a number of sensor, weapon and communication systems, system upgrades, etc. each HAMINA class missile boats will also receive the following from selected subcontractors that Patria System integrates as prime contractor:

  • ASW training target system (Patria)
  • Bofors 40 Mk4 40mm Main Naval Gun (BAE Weapon Systems Sweden)
  • Torpedo 47 (Saab Business Area Dynamics)
  • Trackfire Remote Weapon Stations (Saab Business Area Dynamics)
  • Saab 9LV Combat Management System (Saab Business Area Surveillance)
  • Gabriel V Anti-Ship Missile (IAI / Israel Aerospace Industries Ltd.)
  • ST2400 Variable Depth Sonar (Kongsberg Maritime)
  • Ceros 200 radar and optronic tracking fire control director – updated (Saab Business Area Surveillance)
  • TRS-3D phased array C-band radar – updated (Hensoldt)

The Patria-led MLU will extend the service life of HAMINA class missile boats until 2030, when the next generation POHJANMAA class corvettes enter service. The POHJANMAA class acquisition is part of the Squadron-2020 programme.

Michal Jarocki


Click here to read the interview with Jonas Geust, President, Systems, Patria about their work in this area.