Pisani-class submarine

Vettore Pisani on the surface
Class overview
Operators	Regia Marina
Preceded by	Mameli class
Succeeded by	Bandiera class
In commission	1928–1947
Completed	4
Scrapped	4
General characteristics
Type	Submarine
Displacement	880 t (866 long tons) (surfaced) 1,057 t (1,040 long tons) (submerged)
Length	68.2 m (223 ft 9 in)
Beam	6.09 m (20 ft)
Draft	4.93 m (16 ft 2 in)
Installed power	3,000 bhp (2,200 kW) (diesels) 1,100 hp (820 kW) (electric motors)
Propulsion	2 shafts; diesel-electric 2 × diesel engines 2 × electric motors
Speed	15 knots (28 km/h; 17 mph) (surfaced) 8.2 knots (15.2 km/h; 9.4 mph) (submerged)
Range	5,000 nmi (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced) 70 nmi (130 km; 81 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged)
Test depth	90 m (300 ft)
Crew	48
Armament	1 × single 102 mm (4 in) deck gun 2 × single 13.2 mm (0.52 in) machine guns 6 × 533 mm (21 in) torpedo tubes (4 bow, 2 stern)

The Pisani-class submarines were built for the Regia Marina (Royal Italian Navy) during the late 1920s. They played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists.