"tripling the Swedish [ground- and surface-based] air defenses."
“Tripling the Swedish [ground- and surface-based] air defenses,” Prime Minister Ulf Kristersson declared aboard the Visby class corvette HMS Haernösand on May 19, 2026, as Sweden announced the selection of the French FDI frigate as the basis for its future Luleå class. The choice marks a decisive break from earlier plans for a smaller follow-on to the Visby corvettes and signals a rapid enlargement of Sweden’s surface combatant fleet.
Why FMV picked the French FDI design
Sweden’s Defense Materiel Administration (FMV) chose the French FDI design primarily for “its advanced integrated combat systems and the maturity of the design,” according to reports cited in the announcement. Naval Group — already building the Frégate de Défense et d’Intervention (FDI) at its Lorient yard — offered a notably fast delivery timeline: France initially proposed supplying the first fully equipped warship in 2030, and Sweden expects to receive one vessel per year starting in 2030.
How the Luleå class compares to Sweden’s current ships and the baseline FDI
The Luleå class will be Sweden’s largest surface combatant in decades. By comparison, the Visby class corvette has a displacement of 705 tons and a length of 238 feet 6 inches, while the French FDI baseline displaces 4,390 tons and is 400 feet 3 inches long. FMV’s selection therefore moves Sweden from a modest corvette-centric force toward first-rank frigates with substantially greater endurance, sensors, and weapons capacity.
The Luleå class will retain elements of the FDI baseline — including the Aster 30 as a primary anti-air weapon — but will swap several systems for Swedish-made or otherwise preferred equipment. Sweden confirmed two MBDA missiles for the critical air defense role: the Aster 30 and the CAMM-ER. The Aster 30 “is able to engage targets at more than 75 miles” and has seen “recent improvements ... against anti-ship ballistic missiles (ASBMs).” The CAMM-ER is described as engaging threats out to “around 25 miles.”
Weapons, sensors, and national industrial involvement
- Anti-air: Aster 30 and CAMM-ER will be used in place of the FDI’s baseline mix of Aster 30 and Aster 15.
- Anti-ship: RBS 15 will replace the MM40 Exocet found on the French baseline.
- Anti-submarine: The Swedish Torped 47 will be used instead of the MU90.
- Main gun and CIWS: Bofors 57mm will substitute for the OTO 76mm, and the Bofors 40 Mk 4 will replace the 21-tube RIM-116 Rolling Airframe Missile for close-in air defense.
- Smaller weapons: Saab Trackfire 12.7mm remote weapon stations will be fitted instead of the LIONFISH 20 or NARWHAL 20mm.
- Sensors/command: The French SETIS combat management system appears to be retained, while the Sea Giraffe 1X radar from Saab is reported to be added, displacing the baseline Thales Sea Fire radar.
Sweden will therefore integrate substantial local kit into the FDI hull. The government also emphasized industrial benefits: local defense contractors, particularly Saab, will be involved in kitting out the warships.
What this means for the Swedish Navy, Naval Group, and Saab
- The Swedish Navy: The Luleå class will expand the navy’s anti-air warfare capacity and permit operations not only in the Baltic — Sweden’s primary theater — but also into the wider North Atlantic, aligning the navy’s capabilities with its evolving NATO role.
- Naval Group and France: Choosing an existing FDI design lets Sweden share program costs with other operators already committed to or interested in the hull — notably France and Greece — and strengthens bilateral military ties. President Emmanuel Macron framed the decision as part of a “burgeoning defense partnership,” noting related French choices such as Saab’s GlobalEye acquisition and Swedish participation in forward deterrence measures.
- Saab and Swedish industry: Saab is positioned to fit national systems and contribute radars and weapon integrations, ensuring workshare despite Sweden choosing an off-the-shelf foreign hull.
Sweden’s decision reflects a rapid recalibration of naval ambitions after Russia’s full-scale invasion of Ukraine and Sweden’s accession to NATO, both factors cited as changing the security landscape. With deliveries scheduled to start in 2030 and national systems integrated into the FDI hull, the Luleå class will be a clear, testable manifestation of Sweden’s intent to strengthen air defenses at sea and to operate on a larger geographic stage.
Source: The War Zone — Sweden Chooses Unusual French Design For Its New Frigates
