Italian submarine Jantina (1932)

Jantina was one of seven Argonauta-class submarines built for the Regia Marina (Royal Italian Navy) during the early 1930s. She played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists.

For other ships with the same name, see Italian submarine Jantina.
History
Kingdom of Italy
Name: Jantina
Builder: Odero-Terni-Orlando, Muggiano
Laid down: 1930
Launched: 16 June 1932
Completed: 1933
Fate: Sunk, 5 July 1941
General characteristics
Class and type: Argonauta-class submarine
Displacement:
  • 660 t (650 long tons) (surfaced)
  • 1,097 t (1,080 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:
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:

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

Jantina was laid down by Odero-Terni-Orlando at their Muggiano shipyard in 1930, launched on 15 June 1932 and completed the following year.[2] During the Spanish Civil War, she made one patrol off Barcelona on 12–27 August 1937 during which she unsuccessfully attacked a Republican destroyer with a pair of torpedoes. The destroyer was equally unsuccessful when she depth charged the submarine.[3]

Notes
  1. Bagnasco, p. 146
  2. Chesneau, p. 309
  3. Frank, p. 96

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.
  • Frank, Willard C., Jr. (1989). "Question 12/88". Warship International. XXVI (1): 95–97. ISSN 0043-0374.
  • 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.
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