PARIS, — April 10, 2026 : The French Navy has confirmed that all five Frégate de Défense et d’Intervention (FDI) frigates will be equipped with 32 Sylver A50 vertical launch system (VLS) cells, doubling the originally planned capacity of 16 cells. The announcement was made on April 9, 2026, by Admiral Nicolas Vaujour during a parliamentary hearing on the update to France’s 2024–2030 military programming law.
Capability Increase and Operational Impact
The revised configuration doubles the number of MBDA Aster 15 and Aster 30 surface-to-air missiles carried by each vessel. Under the French Navy’s standard engagement doctrine, which allocates two interceptors per target, the increase raises the number of simultaneous intercepts from eight to 16.
The change is intended to address saturation threats involving anti-ship missiles, unmanned aerial vehicles, and multi-axis attack profiles. By increasing onboard missile capacity, the FDI frigates will be less dependent on task group air defence assets and will be able to sustain multiple engagement cycles.
In the baseline 16-cell configuration, the ships’ missile capacity limited their ability to fully exploit the performance of the Thales Sea Fire active electronically scanned array radar. The radar system, with four fixed panels providing continuous 360-degree coverage, is capable of tracking several hundred targets simultaneously. The expansion to 32 cells reduces the gap between detection and engagement capacity, allowing a higher proportion of tracked threats to be engaged.
Phased Implementation Across the Fleet
The upgrade will be implemented across the entire class through a phased schedule aligned with construction and maintenance cycles at Naval Group’s Lorient shipyard.
The fourth and fifth ships, Amiral Nomy and Amiral Cabanier, will be delivered with 32 cells from the outset. The fifth unit, Amiral Cabanier, was formally ordered on March 31, 2026, completing the French FDI series.
The third ship, Amiral Castex, will receive the additional launcher modules shortly after commissioning. The first two vessels, Amiral Ronarc’h—delivered on October 17, 2025—and Amiral Louzeau, will be retrofitted during their first major maintenance periods.
The FDI hull design incorporates reserved space in the forward deck for additional launcher modules. This allows the increase in VLS capacity without structural modifications to the hull and without changes to core systems, including the Sea Fire radar and the SETIS combat management system.
Technical Configuration and System Constraints
The Sylver A50 launcher uses a one-missile-per-cell architecture, meaning each cell carries a single Aster interceptor. Unlike the Mk 41 vertical launch system, it does not support quad-packing of smaller missiles such as CAMM.
The baseline French configuration consisted of two eight-cell Sylver A50 launchers, totaling 16 missiles. The upgrade standardizes the fleet at 32 cells, aligning it with the configuration already implemented in the export variant of the FDI.
The Greek Navy’s Kimon-class frigates, also built by Naval Group, are equipped with 32 Sylver A50 cells. The French decision brings domestic vessels to the same configuration standard.
Complementary Air Defence Developments
The increase in VLS capacity is part of a broader effort to strengthen layered air defence capabilities. The French Navy is developing a Modular Launching System (MPLS) designed for short-range engagements against drones, unmanned surface vessels, and small craft at ranges below 8 kilometers. The system is intended to employ lower-cost munitions, preserving Aster missiles for higher-value targets.
Naval Group is also studying a cold-launch system that would allow denser packing of smaller interceptors, including CAMM. The concept would utilize three reserved launcher positions in the FDI hull design and could increase total missile capacity to as many as 64 cells without requiring structural redesign.
Programme Timeline and Fleet Structure
The FDI programme maintains France’s target of 15 first-rank surface combatants through 2032. The class is intended to replace the La Fayette-class frigates and compensate for the reduction of the FREMM fleet from 17 units to eight.
Deliveries of the five French FDI frigates are scheduled between 2025 and 2032. Following the delivery of Amiral Ronarc’h in October 2025, subsequent ships are planned to enter service in 2027, 2028, 2031, and 2032.
All vessels are being constructed at Naval Group’s Lorient facility, which maintains a continuous production line supported by both domestic and export orders. The shipyard is currently building four additional FDI frigates for the Hellenic Navy.
Industrial Outlook and Future Considerations
The FDI programme is structured to support both national requirements and export demand. The Lorient production line has the capacity to deliver up to two ships per year under combined orders.
Discussions are ongoing regarding a potential increase in the French Navy’s first-rank surface combatant fleet from 15 to 18 units to meet operational requirements.
The confirmation issued on April 9, 2026, establishes the 32-cell configuration as the final standard for all French FDI frigates. No additional details regarding retrofit timelines or associated costs beyond the existing programme framework have been disclosed.
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