OVERVIEW: The S 522 Salvatore Pelosi [Sauro III Class] is a diesel-electric attack submarine operated by the Italian Navy.

DETAILS: The Salvatore Pelosi is part of the Sauro III series, an improved variant within the larger Sauro class of submarines. The Sauro class was conceived in the 1970s to replace Italy's aging World War II-era submarines and to bolster the nation's undersea warfare capabilities in the Mediterranean. The design philosophy centered on providing a relatively quiet and capable platform optimized for littoral operations. The Sauro III sub-class incorporated improvements in hull design, noise reduction, and sensor technology compared to earlier iterations, aiming to enhance their effectiveness against both surface and subsurface threats. The *Salvatore Pelosi* specifically reflects the ongoing upgrades and modernization efforts of the Italian Navy to maintain a relevant and technologically advanced submarine force. Commissioned in 2002, it represents a significant investment in Italy's maritime security.

The primary roles of the *Salvatore Pelosi* include anti-submarine warfare (ASW), anti-surface warfare (ASuW), and intelligence gathering. In an ASW role, its suite of active and passive sonar systems, including the IPD-70/S MF and LF sonars, as well as the IN 100A LF sonar, provides a robust capability for detecting and tracking enemy submarines. The MD-100/S sonar further enhances its close-range detection abilities. For ASuW operations, the submarine relies on its 533mm torpedo tubes, allowing engagement of surface combatants with a variety of torpedoes. The MM/BPS-704 radar intercept system (3RM-20 SMG) enables electronic intelligence (ELINT) collection and identification of potential surface threats.

The *Salvatore Pelosi*'s sensor suite offers a comprehensive situational awareness picture. The installation of the MM/BLD-727 Thetis towed array sonar significantly increases the submarine's passive detection range, allowing it to detect quieter targets at greater distances. The ISO 100 HF sonar provides high-frequency capabilities, potentially for close-range navigation or mine avoidance. Furthermore, the vessel is equipped with both optical and low-light television (LLTV) periscopes for visual observation, supplementing its electronic sensors. These sensors combined with the torpedo armament allows for a potent and adaptable undersea capability.

SPECIFICATION: Length: 63.9 m || Beam: 6.8 m || Draft: 5.7 m || Disp: 1476 t

SENSORS: IPD-70/S MF || MD-100/S || MM/BPS-704 [3RM-20 SMG] || MM/BLD-727 Thetis || IPD-70/S LF || IN 100A LF || ISO 100 HF || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: 533mm TT