Norway’s Fridtjof Nansen-Class Frigate Fires ESSM Block 2 for First Time

Key Points

• Norway has conducted the first live firing of an Evolved SeaSparrow Missile (ESSM) Block 2 from the Fridtjof Nansen-class frigate KNM Otto Sverdrup.
• The firing was conducted off Andøya as part of Project P6192, managed by the Norwegian Defence Materiel Agency’s Maritime Capabilities division.
• The test campaign included simulated launches and live firings against drone targets.
• The main objectives were to test new software in the ship’s Aegis combat system, missile communications and the Block 2’s active-guidance functions.
• Data collected from the missile and combat system has been sent to the United States for detailed analysis.
• The Norwegian Defence Materiel Agency said preliminary results indicate that the project is on track to deliver the upgraded capability to the Royal Norwegian Navy.
• The multinational test team included the US Navy, Andøya Space Defence, Lockheed Martin, Norway’s National Maritime Operations Centre and the Norwegian Navy’s Supply Command.
• Project Manager Commander Tor Harald Monsen described the exercise as a successful example of international cooperation.
• Norway’s defence plans identify Project P6192 as an upgrade programme involving ESSM Block 2 procurement, frigate-system modifications and continued support for existing Block 1 missiles.
• Norway’s government has said the ESSM acquisition and introduction are being carried out during the 2024–2031 period, while the project’s approved cost framework was increased to NOK 4.084 billion in the 2025 budget proposal.
• ESSM Block 2 introduces a dual-mode active and semi-active radar seeker while retaining compatibility with Mark 41 Vertical Launching Systems.
• The next stage involves final installation, fleet integration and operational certification of the Block 2 capability.

Norway Post Magazine (NPM) October 2, 2026 – Norway has completed the first live firing of the Evolved SeaSparrow Missile (ESSM) Block 2 from a Fridtjof Nansen-class frigate, marking a test milestone in the Royal Norwegian Navy’s programme to introduce the upgraded air-defence missile. The Norwegian Defence Materiel Agency (FMA) said Project P6192 successfully conducted the firing from KNM Otto Sverdrup during a campaign off Andøya that combined simulated launches with live firings against drone targets. The agency said the exercise was intended to verify new Aegis combat-system software, missile communications and new guidance functions, while data from the missile and combat system has been transferred to the United States for further analysis.

What happened during Norway’s first ESSM Block 2 frigate firing?

The test was conducted during the final week of September 2026, according to the Norwegian Defence Materiel Agency. FMA published its account on October 1, stating that Project P6192, operated by its Maritime Capabilities division, had successfully fired an ESSM Block 2 from KNM Otto Sverdrup. The agency described the Block 2 as a further development of the ESSM Block 1 missile that had previously been used by the Norwegian frigates.

Naval News, in a report published on October 2 by Naval News Staff, likewise reported that the Norwegian agency had announced the first live firing from the Fridtjof Nansen-class vessel. The publication said the firing took place off Andøya and formed part of Project P6192. It also reported that the upgraded missile is intended to replace the Block 1 variant previously used by the Royal Norwegian Navy.

According to FMA, the firing campaign was not limited to a single live missile launch. It included simulated firing as well as live firing against drones. This allowed the test team to examine the interaction between the missile and the ship’s combat system under test conditions.

The agency said the principal purpose was to test new software in the Aegis combat system and confirm that the new functionality and communication between the ship and missile operated according to requirements. FMA also said the firing demonstrated that the ESSM Block 2 achieved the expected performance.

What did Norwegian officials say about the ESSM Block 2 test?

The Norwegian Defence Materiel Agency said data from both the missile and the combat system had been collected and sent to the United States for more detailed analysis. FMA’s preliminary assessment was that the project could proceed towards delivering the new capability to the Norwegian Navy.

Commander Tor Harald Monsen, the FMA project manager responsible for the exercise at Range Control at Andøya Space Defence, also highlighted the multinational nature of the test.

As reported by Naval News Staff of Naval News, Monsen described the exercise as an international collaboration and praised the execution by the crew of KNM Otto Sverdrup and the test leadership at Range Control. The Norwegian Defence Materiel Agency published the same assessment in its October 1 announcement.

The test and support team included personnel from the US Navy, Andøya Space Defence, Lockheed Martin, the National Maritime Operations Centre, identified by FMA as NSS N6, and the Norwegian Navy’s Supply Command.

The involvement of these organisations reflects the multinational structure surrounding both the test activity and the wider ESSM programme. The ESSM is developed through international cooperation involving NATO member and partner countries, while the Norwegian frigates use an Aegis-based combat architecture.

Where was the ESSM Block 2 missile tested?

The live firing took place off Andøya in northern Norway. The Barents Observer, in a September 30 report by Atle Staalesen, described the test location as being about 300 kilometres north of the Arctic Circle and reported that the missile was launched from KNM Otto Sverdrup.

Staalesen reported that data from the missile and combat system was being sent to the United States for further detailed analysis. His report also identified the participation of the US Navy, Andøya Space Defence, Lockheed Martin, the National Maritime Operations Centre and the Norwegian Navy’s Supply Command.

The geographical location is significant to the test itself because Andøya hosts facilities used for defence and aerospace testing. The Norwegian agency’s announcement identifies Andøya Space Defence as part of the test and support team, with the exercise controlled from its Range Control facility.

The available official material does not state that the firing represented an operational deployment or that the complete fleet has already received the new missile capability. Instead, FMA explicitly says further work remains before final installation and approval.

What happens after the ESSM Block 2 firing?

The successful firing is a test milestone rather than the end of Project P6192.

According to the Norwegian Defence Materiel Agency, its Maritime Capabilities division will now work with the Royal Norwegian Navy on the final installation and approval of the ESSM Block 2 capability.

Naval News Staff similarly reported that the next stage would involve final installation, fleet integration and operational certification.

This distinction is important because a successful missile firing does not by itself establish that a complete weapons system has reached full operational certification. The test has provided performance data, but FMA said that data still requires detailed analysis in the United States.

The test therefore forms part of a wider sequence involving missile performance, combat-system software, communications, installation and certification.

What is Project P6192 and why is it important to Norway’s frigates?

Project P6192 is Norway’s programme to upgrade the air-defence missile capability of its Fridtjof Nansen-class frigates.

Norway’s Ministry of Defence previously described the project as involving three principal elements: development of the ESSM Block 2, procurement of new missiles, and modification of the frigates’ weapons systems to accommodate the new missile. The programme also includes life-extension work for existing ESSM Block 1 missiles.

The Norwegian government’s 2025 budget documentation states that development of the new missile was completed in December 2021 and that procurement and introduction were being carried out during the 2024–2031 period. The document also says Norway proposed increasing the project’s cost framework from NOK 2.645 billion to NOK 4.084 billion, including VAT, uncertainty provisions and implementation costs.

The same government document says the increase included additional missile procurement as well as adjustments linked to price growth and currency effects.

The programme therefore extends beyond the firing reported this week. The test represents one stage within a longer acquisition and integration process.

How does ESSM Block 2 differ from the older Block 1 missile?

The principal technical change highlighted in the available reporting is the introduction of a dual-mode guidance system.

Naval News Staff reported that ESSM Block 2 uses both active and semi-active radar guidance, compared with the earlier Block 1 system’s reliance on shipboard radar illumination. The publication said the Block 2’s active radar seeker allows the missile to guide itself during the terminal phase of an engagement.

The US Navy’s technical material provides additional background. It says ESSM Block 2 retains the propulsion section of Block 1 while using a larger guidance section containing a dual seeker capable of semi-active and active guidance. The US Navy also states that the Block 2 reached initial operational capability in 2021.

The NATO SeaSparrow Project has previously described the active seeker as a central part of the Block 2 development. In a 2018 account of an earlier flight test, the NATO SeaSparrow Project Office said the missile was designed to employ both semi-active and active guidance against current and anticipated threats.

According to Naval News, the missile has a reported operational range of more than 50 kilometres, or more than 27 nautical miles, and a top speed exceeding Mach 4. These figures are technical characteristics reported by the publication and should be distinguished from the specific performance results of Norway’s latest firing, which remain subject to analysis.

Can ESSM Block 2 use the existing Mark 41 launch system?

The Block 2 was designed to retain compatibility with existing ship-launch infrastructure.

The US Navy states that ESSM is integrated with several launch systems and combat architectures, including the Mark 41 Vertical Launch System and the Aegis Weapon System. Its technical description says the Block 2 retains the same propulsion section while introducing the new guidance section.

Naval News reported that the Block 2 retains the physical dimensions and mechanical interfaces of the earlier missile and remains compatible with Mark 41 VLS. This permits the established quad-pack arrangement, in which four ESSM missiles can be carried in a single Mark 41 launch cell.

That compatibility is relevant to fleet integration because it means the missile upgrade is being pursued within an existing launcher architecture rather than requiring an entirely new launch system.

The Norwegian government’s Project P6192 documentation likewise describes the programme as an adaptation of the frigates’ existing weapons systems to the new missiles.

How does the test fit into the international NATO SeaSparrow programme?

ESSM Block 2 is not a solely Norwegian weapons programme.

The US Department of Defense has described ESSM Block 2 as an international cooperative effort involving the NATO SeaSparrow Consortium. A 2015 US defence contract for engineering and manufacturing development identified Norway among the participating countries and described the programme as an international cooperative development and procurement effort.

The NATO SeaSparrow Project Office says the consortium involves 12 nations and manages international cooperation covering development, production and sustainment of the system. Its historical material records Norway as one of the countries participating in the ESSM Block 2 development programme.

The US Navy’s technical description also lists Norway among the consortium members using ESSM and identifies Aegis among the combat systems with which ESSM can interface.

The international structure helps explain why Norway’s test included American and multinational personnel and why missile and combat-system data is being transferred to the United States for analysis.

What is the background to Norway’s ESSM upgrade programme?

The origins of Norway’s current ESSM Block 2 upgrade programme stretch back more than a decade.

Norway’s government says the Storting approved the project following consideration of the 2013–2014 defence proposal. The stated purpose was to update the air-defence missiles used by the Fridtjof Nansen-class frigates and address the need for improved performance as threats evolved.

Earlier Norwegian government documents explained that the requirements for the original ESSM had been developed during the 1990s and that changing and emerging threats created a requirement for further development. Norway’s participation in the NATO SeaSparrow Project provided the framework for developing and acquiring ESSM Block 2.

The ESSM programme itself developed from the earlier Sea Sparrow family. The US Navy describes ESSM Block 1 as a medium-range semi-active homing missile intended for ship self-defence against threats including anti-ship cruise missiles and aircraft. The Block 2 programme was subsequently developed to introduce active and semi-active guidance.

The NATO SeaSparrow Project dates back to 1968. NATO has described the programme as a long-running cooperative effort to provide naval surface-to-air missile capabilities for participating countries.

What could the ESSM Block 2 milestone mean for the Royal Norwegian Navy?

For the Royal Norwegian Navy, the immediate implication is that Project P6192 has reached a live-fire stage from one of its Fridtjof Nansen-class frigates.

The Norwegian Defence Materiel Agency said the initial results indicate that the project can proceed towards delivery of the new capability, while making clear that additional work is required before final installation and approval.

The technical design of ESSM Block 2 also means that Norway is introducing an upgraded missile while retaining compatibility with the Mark 41 VLS architecture. The combination of the Block 2 seeker and existing launch infrastructure is intended to provide an updated missile capability without replacing the entire launcher arrangement.

For allied operations, the international nature of the ESSM programme also means that Norway’s upgraded missile capability remains connected to a wider consortium of participating countries. The US Navy and NATO SeaSparrow Project Office identify the programme as an international cooperative weapons effort.

What is the likely next stage for Norway’s ESSM Block 2 programme?

The immediate next stage is not a new weapons test announced in the available material but the analysis, integration and certification work following the Andøya firing.

FMA has said that data gathered from the missile and combat system has been sent to the United States for detailed analysis. The agency and the Royal Norwegian Navy will then proceed with final installation and approval of the capability.

Norway’s existing programme documentation indicates that procurement and introduction of the ESSM Block 2 capability are planned within the 2024–2031 period. The latest firing therefore represents a development milestone within that broader implementation schedule rather than the conclusion of the programme.

For defence and maritime-security audiences, the principal development to monitor is consequently the transition from successful testing to fleet integration and operational certification. The available evidence confirms that the first live firing has taken place and that preliminary results were described positively by FMA, but final operational status depends on the remaining analysis, installation and approval stages.