FDI Frigate (Belharra Class) | France’s Digital-Native Warship Explained

The Frégate de Défense et d’Intervention (FDI), also known as the Belharra class for export customers, represents a new generation of compact yet heavily armed surface combatants designed for modern, multi-domain naval warfare. Developed by Naval Group for the French Navy and now adopted by partners such as Greece, the FDI combines advanced sensors, digital architecture, and strong firepower into a stealthy 4,500-ton frigate built to operate in today’s most contested seas.

In this video, we take a deep dive into what makes the FDI unique, from its “digital native” design philosophy to its powerful combat systems. We break down how this ship replaces the older La Fayette class while delivering true first-rank capabilities in air defense, anti-submarine warfare, and surface combat.

Topics covered include:

The origins of the FDI program and its role in modernizing the French Navy

Key specifications, propulsion, range, and automation-driven crew reduction

The Thales Sea Fire S-band AESA radar and integrated PSIM mast

Anti-submarine warfare with Kingklip sonar, CAPTAS-4 towed array, and NH90 helicopter

Aster 15 and Aster 30 air defense via Sylver A50 VLS cells

Exocet MM40 Block 3C anti-ship missiles and layered self-defense systems

Differences between French and Greek variants, including expanded missile capacity

Growth potential, future upgrades, and export success

With its stealthy hull, cyber-secure architecture, and balanced weapons suite, the FDI punches well above its weight and reflects how modern navies are shifting toward smarter, more adaptable warships. From Atlantic patrols to high-threat Mediterranean operations, the FDI is designed to survive, fight, and dominate in complex naval environments.

If you’re interested in modern frigates, naval engineering, or the future of surface warfare, this in-depth breakdown explains why the FDI is one of the most important new warships entering service today.

Disclaimer

This video is for educational and informational purposes only. All information discussed is based solely on publicly available, non-classified sources. No sensitive, restricted, or classified military information is included or implied.

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