OVERVIEW: The S 620 Agosta is a diesel-electric attack submarine operated by the French Navy, commissioned in 1995.

DETAILS: The Agosta-class submarine represents a further development of the earlier Daphné-class, incorporating significant improvements in acoustic signature reduction and combat system technology. The design emphasizes stealth and endurance for extended patrol missions in both coastal and deep-water environments. The Agosta class aimed to provide a potent, cost-effective submarine platform capable of fulfilling a variety of roles, and served as a bridge between the Daphné and the more advanced Rubis-class nuclear-powered submarines within the French Navy. The design also saw export success, with variants built or licensed to other nations. The S 620 likely underwent periodic modernization programs throughout its service life, incorporating updated sensor and combat management systems to maintain its operational relevance.

The Agosta-class submarine's primary roles include anti-submarine warfare (ASW), anti-surface warfare (ASuW), intelligence gathering, and maritime interdiction. The S 620 would be capable of conducting independent operations or acting as part of a larger naval task force. Its improved acoustic signature compared to the Daphné class makes it particularly well-suited for covert operations and close-in surveillance. The vessel's ability to deploy from and return to friendly ports discreetly also makes it a valuable asset for special operations support, including the insertion and extraction of special forces teams. Its operational employment typically focuses on maintaining maritime security within France's Exclusive Economic Zone (EEZ) and supporting broader NATO operations in the Atlantic and Mediterranean.

The sensor suite of the S 620 Agosta significantly enhances its operational capabilities. The DUUX 2A provides long-range passive sonar detection, allowing for early warning of approaching vessels and submarines. The DSUV 62A [TSM 2933] is likely a towed array sonar, further extending the submarine's detection range and providing improved target localization. The DSUV 22 [DSUV 2H + DUUA 2D] likely represents an active/passive sonar system, providing both detection and ranging capabilities. ARUR 10 [DR 2000U] and DRUA 33C Calypso III [TRS 3100] provide electronic support measures (ESM), allowing the submarine to detect and identify radar emissions from surface ships and aircraft. The DUUG 5 and DUUG 6 [M5] are components of the vessel's fire control system. The fitted periscopes (Optical and LLTV) provide visual and low-light surveillance capabilities for surface target identification and navigation. The vessel's armament consists of 550mm torpedo tubes capable of launching anti-submarine torpedoes and anti-ship missiles. A signal ejector would allow for the launch of countermeasures and communication devices.

SPECIFICATION: Length: 67.6 m || Beam: 6.8 m || Draft: 5.4 m || Disp: 1490 t

SENSORS: DUUX 2A || DSUV 62A [TSM 2933] || DSUV 22 [DSUV 2H + DUUA 2D] || ARUR 10 [DR 2000U] || DRUA 33C Calypso III [TRS 3100] || DUUG 5 || DUUG 6 [M5] || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: Signal Ejector || 550mm TT