The Anfitrite was a Sirena-class coastal submarine built for the Regia Marina (Royal Italian Navy) during the early 1930s. As part of a dozen submarines in its class, Anfitrite embodied the improved design features of the second sub-class of the 600 Series, which were enhancements over the earlier Argonauta-class. Constructed at the Cantieri Riuniti dell'Adriatico shipyard in Monfalcone, she was laid down in 1931, launched on 24 April 1933, and completed in 1934. Physically, Anfitrite measured 61.5 meters (201 ft 9 in) in length, with a beam of 5.7 meters (18 ft 8 in) and a draft of 4.7 meters (15 ft 5 in). She displaced 691 metric tons (680 long tons) when surfaced and 850 metric tons (837 long tons) submerged. Her crew comprised 45 officers and enlisted men. Propulsion-wise, Anfitrite was equipped with two 675-brake-horsepower (503 kW) diesel engines for surface travel, each driving a propeller shaft, enabling her to reach speeds of up to 14 knots (26 km/h; 16 mph) on the surface. When submerged, she used two 400-horsepower (298 kW) electric motors, allowing a maximum submerged speed of 7.5 knots (13.9 km/h; 8.6 mph). Her operational range was extensive, capable of traveling 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots on the surface, but limited to 72 nautical miles (133 km; 83 mi) at 4 knots when submerged. Anfitrite's armament included six 53.3-centimeter (21 in) torpedo tubes—four in the bow and two in the stern—carrying a total of 12 torpedoes. She was also equipped with a single 100 mm (3.9 in) deck gun positioned forward of the conning tower for surface combat, and her anti-aircraft defenses comprised two or four 13.2-millimeter (0.52 in) machine guns. While specific service history details are not provided in the source, Anfitrite's specifications highlight her role as a capable coastal submarine designed for patrols and combat within the Mediterranean theater during her operational period. Her construction and technological features reflect Italy’s naval strategy of the era, emphasizing versatility and reach for coastal defense and offensive operations.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.