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Patria delivers the fourth modernized Hamina-Class missile boat Pori to Finland.


| 2022

According to a PR published by Patria on September 13, 2022, the company has delivered the fourth and last modernized Hamina-Class missile boat to the Finnish Navy in Upinniemi. In the Mid-Life-Upgrade (MLU) project Patria has been acting as the prime contractor, designer, and lead system integrator.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Finnish Hamina class missile boat Pori during an exercise. (Picture source: NATO)


The fourth modernized Hamina-Class missile boat, called Pori, started its sea acceptance tests related to the commissioning of the boat already in the spring, which continued over the summer.

Four missile boats in total were modernized between 2018-2022 as a part of MLU project, providing new capabilities to the Finnish Navy.

The large-scale overhaul ensures the capability to countering maritime threats, repelling attacks at sea, protecting sea lines, and monitoring and securing territorial integrity.

With the new torpedo and surface-to-surface missile system, as well as upgrades to the surface-to-air missile system, the ships are capable of impact in the air, surface and underwater.

The planned life cycle of the Hamina class extends until the 2030s with the life cycle update.

About the Hamina class missile boat

The Hamina-class missile boat is a class of fast attack craft of the Finnish Navy. They are classified as "missile fast attack craft" or ohjusvene, literally "missile boat" in Finnish.

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.

The vessel's hull is constructed of aluminum and the superstructures are constructed of reinforced carbon fiber composite. The vessels have a very low displacement and are very maneuverable.

They are equipped with water jets instead of propellers, which allow them to operate in very shallow waters and accelerate, slow down and turn in unconventional ways.

The Hamina class has the latest in surveillance and weapons technology all integrated into an intelligent command system. A Hamina class vessel can monitor about 200 kilometers (120 mi) of air space and its Umkhonto surface-to-air missile system can simultaneously engage a maximum of eight aircraft, up to 14 kilometers (8.7 mi) away, while the vessel's anti-ship missiles have a range in excess of over 250 kilometers (160 mi).

The Hamina class' primary weaponry is four RBS-15 Mk.3 anti-ship missiles. The vessels are further equipped with a Bofors 57 mm gun against surface and aerial targets as well as the Umkhonto-IR surface-to-air missiles, MASS decoy system, and two 12.7 mm heavy machine guns. It is also possible to use the ships for mine-laying.


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