Italian submarine Salpa (1932)

The Salpa was a Sirena-class submarine of the Italian Royal Navy (Regia Marina). She was built by Cantiere Navale Franco Tosi in Taranto, launched on March 27, 1932, and entered service later that year.

The Sirena-class was a group of twelve submarines designed as improved versions of the earlier Settembrini-class. Salpa displaced 681 tons surfaced and 854 tons submerged. She had a length of 68.15 meters (223 ft 7 in), a beam of 6.09 meters (20 ft 0 in), and a draft of 4.93 meters (16 ft 2 in). Her propulsion system consisted of two Tosi diesel engines for surface running and two electric motors for submerged operation. This gave her a surface speed of 14 knots (26 km/h; 16 mph) and a submerged speed of 7.5 knots (13.9 km/h; 8.6 mph). She had a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph) on the surface and 72 nautical miles (133 km; 83 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged. The Salpa was armed with six 533 mm (21 in) torpedo tubes (four in the bow, two in the stern), and a 100 mm (4 in)/47 caliber deck gun.

The Salpa operated primarily in the Mediterranean Sea during World War II. On June 27, 1941, she was sunk off the coast of Egypt by depth charges dropped by the British destroyers HMS Kingston and HMS Khartoum. There were no survivors.