Italian submarine Serpente

History
Kingdom of Italy
NameSerpente
BuilderCantieri navali Tosi di Taranto, Taranto
Laid down1930
Launched28 February 1932
Completed1933
RenamedFrom Nautilus
FateScuttled, 12 September 1943
General characteristics
Class and typeArgonauta-class submarine
Displacement
  • 660 t (650 long tons) (surfaced)
  • 813 t (800 long tons) (submerged)
Length61.5 m (202 ft)
Beam5.7 m (18 ft 8 in)
Draft4.7 m (15 ft 5 in)
Installed power
  • 1,500 bhp (1,100 kW) (diesels)
  • 800 hp (600 kW) (electric motors)
Propulsion
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 depth80 m (260 ft)
Armament

Serpente was one of seven Argonauta-class submarines built for the Regia Marina (Royal Italian Navy) during the early 1930s.

Design and description

The Argonauta class was derived from the earlier Squalo-class submarines.[1] They displaced 660 metric tons (650 long tons) surfaced and 813 metric tons (800 long tons) submerged. The submarines were 61.5 meters (201 ft 9 in) long, had a beam of 5.7 meters (18 ft 8 in) and a draft of 4.7 meters (15 ft 5 in).[2] They had an operational diving depth of 80 meters (260 ft).[1] Their crew numbered 44 officers and enlisted men.[2]

For surface running, the boats were powered by two 750-brake-horsepower (559 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 400-horsepower (298 kW) electric motor. They could reach 14 knots (26 km/h; 16 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater.[1] On the surface, the Settembrini class had a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph);[2] submerged, they had a range of 110 nmi (200 km; 130 mi) at 3 knots (5.6 km/h; 3.5 mph).[1]

The boats were armed with six 53.3-centimeter (21 in) torpedo tubes, four in the bow and two in the stern for which they carried a total of 12 torpedoes. They were also armed with a single 102-millimeter (4 in) deck gun forward of the conning tower for combat on the surface. Their anti-aircraft armament consisted of two single 13.2-millimeter (0.52 in) machine guns.[2]

Construction and career

Serpente was laid down by Cantieri navali Tosi di Taranto at their Taranto shipyard in 1930, launched on 28 February 1932 and completed the following year.[2]

Notes

  1. ^ a b c d Bagnasco, p. 146
  2. ^ a b c d e Chesneau, p. 309

References

  • Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6.
  • Brescia, Maurizio (2012). Mussolini's Navy: A Reference Guide to the Regina Marina 1930–45. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-59114-544-8.
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
  • Rohwer, Jürgen (2005). Chronology of the War at Sea 1939–1945: The Naval History of World War Two (Third Revised ed.). Annapolis, Maryland: Naval Institute Press. ISBN 1-59114-119-2.
  • Sommergibili Marina Militare website
  • Colombo, Lorenzo (April 10, 2024). "R.Smg.Serpente". regiamarina.net. Cristiano D'Adamo. Retrieved April 10, 2024. Operational Records