OVERVIEW: The S 616 *Le Triomphant* is a nuclear-powered ballistic missile submarine (SSBN) of the *Le Triomphant* class, serving in the French Navy (Marine Nationale). Commissioned in 2012, it represents the cornerstone of France's nuclear deterrent force.

DETAILS: The *Le Triomphant* class represents the third generation of French SSBNs, designed to replace the aging *Redoutable* class. The program was initiated in the early 1980s, with a focus on enhanced stealth, improved acoustic performance, and the capability to deploy the next-generation M51 ballistic missile. The design incorporates extensive noise reduction measures, including a raft-mounted propulsion system and anechoic tiles, making the *Le Triomphant* class significantly quieter than its predecessors. The construction of these submarines is a complex and costly undertaking, reflecting the strategic importance placed on maintaining an independent nuclear deterrent capability. The *Le Triomphant* class embodies a significant leap forward in French submarine technology and is crucial to the nation's defense posture. The lead ship of the class was laid down in 1986, but delays pushed the commissioning of the *Le Triomphant* to 1997. Subsequent vessels, including S 616, benefited from design refinements and improved construction techniques.

The primary role of *Le Triomphant* and its sister ships is to provide a credible and survivable nuclear deterrent. This is achieved by maintaining a continuous at-sea presence, ensuring the ability to launch a retaliatory strike in the event of a nuclear attack against France. While primarily a strategic platform, the vessel also possesses capabilities for anti-submarine warfare (ASW) and intelligence gathering. Its advanced sonar suite, including the DMUX 80 bow and flank arrays and the DRUA 33C Calypso III (TRS 3100) intercept receiver, facilitates the detection and tracking of potentially hostile submarines and surface vessels. The ARUR 13 (DR 3000U) electronic support measures (ESM) suite allows for the identification and analysis of enemy radar and communication signals. The 533mm torpedo tubes provide a self-defense capability.

*Le Triomphant*'s sensor suite provides a comprehensive underwater situational awareness. The DMUX 80 bow and flank sonar arrays offer long-range detection and tracking capabilities, while the DSUV 61B towed array sonar enhances the submarine's ability to detect faint acoustic signatures in noisy environments. The DUUG 6 (M5) fire control system integrates data from various sensors to provide accurate targeting solutions for both the M51 ballistic missiles and the 533mm torpedoes. The installation of the CONTRALTO-S (SLAT) anti-torpedo defense system provides a layered defense against incoming torpedoes. The combination of advanced sensors and countermeasures makes the *Le Triomphant* a formidable and highly survivable platform. The 'Generic Submarine Periscope, Optical' and 'Generic Submarine Periscope, LLTV' provide visual and low-light surveillance capabilities when operating at periscope depth.

SPECIFICATION: Length: 138.0 m || Beam: 12.5 m || Draft: 10.6 m || Disp: 12640 t

SENSORS: DMUX 80 Bow || DMUX 80 Flank || DRUA 33C Calypso III [TRS 3100] || ARUR 13 [DR 3000U] || DSUV 61B || DUUG 6 [M5] || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: CONTRALTO-S [SLAT] || M51/TN75 || Signal Ejector || 533mm TT