Naval Warfare

Patria NEMO Navy Mortar System Achieves International Breakthrough in Sweden

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Patria NEMO Navy Mortar System Achieves International Breakthrough in Sweden

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Patria Nemo 120 mm Mortar System
Patria Nemo 120 mm Mortar System

The Patria NEMO Navy mortar system ordered by Sweden is an important international reference for Patria. This mortar system boosts accurate fire-on-the-move capabilities. It has attracted interest from others, too. Sweden is bolstering its maritime defence capability with eight new mortar vessels that will be equipped with the Patria NEMO Navy mortar system. The Swedish Defence Materiel Administration FMV (Försvarets materielverk) has ordered these vessels from Swede Ship Marine AB, for which Patria serves as a subcontractor. This is a good example of Swedish-Finnish cooperation in the defence sector. Patria NEMO Navy is a lightweight and compact 120 mm turreted mortar system that is ideal for applications in fast-moving fleets. The same product family also includes Patria NEMO for vehicle integration and the Patria NEMO Container solution. The Swedish Armed Forces were already familiar with Patria’s mortar system — in 2018, Patria NEMO Container passed test firings conducted in challenging marine conditions in Sweden. In these tests, the container solution was integrated into a Fast Supply Vessel. In addition to eight mortar vessels, FMV’s order includes two Patria NEMO Container systems. The container operates as a fully standalone mortar unit, as it includes all the necessary features: the weapon, ammunition and crew protection.

“Two Swedish shipyards reached the final stretch of the tendering process. FMV chose the package offered by Swede Ship Marine, which included the Patria NEMO Navy mortar system. Together we’ll build an optimal solution for the Swedish Armed Forces. This is a good example of Swedish-Finnish cooperation in the defence sector. The NEMO system provides troops with indirect mortar fire capabilities from a moving vessel. The mortar systems of other manufacturers don’t include such features. Swede Ship Marine invited us to participate in discussions with FMV at a very early stage. Since then, we’ve worked closely together. We’re like one team. We can deliver the vessels on a fairly rapid schedule. Nowadays, customers value fast delivery times. The Swedish Armed Forces are known to set very high demands on their procurements. They want only the best quality. This order will serve as an important international reference for us,” says Mats Hamrin, Key Account Manager Nordics at Patria.

Swede Ship Marine’s 24 m fast mortar boat
24-meter fast mortar vessel. (Photo by Swedeship Marine)

The mortar vessels will be used by amphibious troops stationed in Stockholm and Gothenburg. These troops operate on coasts, archipelagos and estuaries — their task is to repel enemy landings and, if necessary, to also carry out landings of their own. To this end, the Swedish Armed Forces developed the Amfbat 2030 concept for its combat forces to enhance their mobility, speed and firepower. The Patria NEMO system provides troops with indirect mortar fire capabilities from a moving vessel. The acquisition of mortar vessels supports the practical implementation of this concept. Patria’s partner Swede Ship Marine has experience in ship-building that goes back to the 1890s. The company has supplied ships to the Swedish Armed Forces and Coast Guard since the 1930s. Swede Ship Marine and Patria will deliver the first fully equipped vessel to FMV in early 2027 and the last at the end of 2028. his order from Sweden bolsters the position of Patria’s NEMO mortar system in the international market — and increases interest worldwide.

NEMO (from “NEw MOrtar”) is a single barrelled 120 mm remote-controlled mortar turret currently being developed by Patria Land Oy in Finland. It is a lighter version of the AMOS mortar system, which has been in use within the Finnish Defence Forces since 2013. The NEMO can be fitted to most APCs and also to smaller landing craft, such as the Finnish Jurmo-class landing craft or the Swedish CB90-class fast assault craft. Patria NEMO’s state-of-the-art weapons technology is built on the company’s 80 years-plus experience of 120 mm mortar systems. Fire-on-the-move capabilities significantly speed up fire mission preparation, weapon alignment and opening fire. To this end, the turret must have an effective stabilisation system. Accurate fire also requires an advanced ballistic calculation system to determine continually changing fire values. The turret control system is based on Patria’s state-of-the-art in-house software expertise. Patria NEMO is also suitable for multiple round simultaneous impact (MRSI) firing. MRSI involves firing several mortal shells right after each other — they hit the target at the same time. In addition to indirect fire, the system features direct fire capability.

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