Argonauta-class submarine

	Argonauta
Class overview
Name	Argonauta class
Builders	CRDA; OTO; Tosi;
Operators	Regia Marina
Preceded by	Argo class
Succeeded by	Sirena class
Built	1929–1933
In commission	1932–1948
Completed	7
Lost	6
Scrapped	1
General characteristics
Type	Submarine
Displacement	660 t (650 long tons) (surfaced); 813 t (800 long tons) (submerged);
Length	61.5 m (202 ft)
Beam	5.7 m (18 ft 8 in)
Draft	4.7 m (15 ft 5 in)
Installed power	1,500 bhp (1,100 kW) (diesels); 800 hp (600 kW) (electric motors);
Propulsion	2 shafts; diesel-electric; 2 × diesel engines; 2 × electric motors;
Speed	14 knots (26 km/h; 16 mph) (surfaced); 8 knots (15 km/h; 9.2 mph) (submerged);
Range	5,000 nmi (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced); 110 nmi (200 km; 130 mi) at 3 knots (5.6 km/h; 3.5 mph) (submerged);
Test depth	80 m (260 ft)
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 Argonauta-class submarine was the first sub-class of the 600 Series of coastal submarines built for the Regia Marina (Royal Italian Navy) during the 1930s. Some of these boats played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists. Of the seven boats built in this class, only a single one survived the Second World War.

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