Italian submarine Sirena

History
Kingdom of Italy
NameSiren
NamesakeSiren
BuilderCantieri Riuniti dell'Adriatico, Monfalcone
Laid down1931
Launched26 January 1933
FateScuttled, 9 September 1943
General characteristics
Class & typeSirena-class submarine
Displacement
  • 691 t (680 long tons) (surfaced)
  • 850 t (837 long tons) (submerged)
Length60.18 m (197 ft 5 in)
Beam6.45 m (21 ft 2 in)
Draft4.7 m (15 ft 5 in)
Installed power
  • 1,350 bhp (1,010 kW) (diesels)
  • 800 hp (600 kW) (electric motors)
Propulsion
Speed
  • 14 knots (26 km/h; 16 mph) (surfaced)
  • 7.5 knots (13.9 km/h; 8.6 mph) (submerged)
Range
  • 5,000 nmi (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph) (surfaced)
  • 72 nmi (133 km; 83 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged)
Armament

Sirena was one of a dozen Sirena-class submarines, the second sub-class of the 600 Series of coastal submarines built for the Regia Marina (Royal Italian Navy) during the early 1930s.