Italian submarine Iride

History
Kingdom of Italy
Name	Iride
Builder	OTO, Muggiano
Laid down	3 September 1935
Launched	30 July 1936
Commissioned	6 November 1936
Fate	Sunk, 22 August 1940
General characteristics
Class and type	Perla-class submarine
Displacement	622.57 tonnes (613 long tons) standard 696.0 tonnes (685 long tons) normal (surfaced) 852.5 tonnes (839 long tons) normal (submerged)
Length	60.18 m (197 ft 5 in)[1]
Beam	6.454 m (21 ft 2.1 in)[1]
Draft	4.724 m (15 ft 6.0 in)[1]
Installed power	1,200 bhp (890 kW) (diesels) 800 hp (600 kW) (electric motors)
Propulsion	Diesel-electric 2 × FIAT diesel engines 2 × CRDA electric engines
Speed	14 knots (26 km/h; 16 mph) surfaced[1] 7.5 knots (13.9 km/h; 8.6 mph) submerged[1]
Range	5,200 nmi (9,600 km; 6,000 mi) at 8 knots (15 km/h; 9.2 mph) surfaced[1] 74 nmi (137 km; 85 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged[1]
Test depth	80 m (260 ft)[1]
Complement	44 (4 officers + 40 non-officers and sailors)
Armament	6 × 533 mm (21 in) torpedo tubes (4 bow, 2 stern)[1] 1 × 100 mm (4 in) / 47 caliber deck gun[1] 2 × 1 – 13.2 mm (0.52 in) anti-aircraft guns[1]

Italian submarine Iride was a Perla-class submarine built for the Royal Italian Navy (Regia Marina) during the 1930s. Originally, she was named Iris until July 1936, but was renamed shortly before her launch.