Italian submarine Otaria (1935)
| Company type | Submarine |
|---|---|
| Industry | Naval military vessel |
| Founded | March 20, 1935 |
| Headquarters | Trieste , Italy |
| Products | Submarines |
| Website | www |
Otraria was among two submarines of the Error: {{sclass}} missing required parameter: ship type (help) class originally commissioned by the Portuguese government, but were seized and finalized for service with the minuscule:Regia Marina during the 1930s. The vessel had a limited involvement in the Spanish Civil War between 1936 and 1939, providing assistance to the Francoist Spain forces.
Design and description
The Glauco-class submarines represented an enhanced iteration of the earlier Error: {{sclass}} missing required parameter: ship type (help) class. They featured a displacement of approximately 1,071 metric tons (1,054 long tons) when surfaced and around 1,326 metric tons (1,305 long tons) while submerged. The hull measured roughly 73 meters (239 ft 6 in) in length, with a beam spanning about 7.2 meters (23 ft 7 in), and a draft near 5.12 meters (16 ft 10 in). Their maximum operational diving depth reached 90 meters (300 ft). Crewing consisted of 58 personnel including officers and enlisted men.
For propulsion on the surface, these submarines utilized twin diesel engines, each delivering approximately 1,500 brake horsepower (1,100 kW) to individual propeller shafts. Underwater movement was powered by dual electric motors rated at around 600 horsepower (450 kW) each. Their top speeds were about 17 knots (31 km/h; 20 mph) on the surface and roughly 8 knots (15 km/h; 9.2 mph) submerged. Surface cruising range extended up to approximately 9,760 nautical miles (18,080 km; 11,230 mi) at a steady speed of 8 knots (15 km/h; 9.2 mph), while submerged endurance was around 110 nautical miles (200 km; 130 mi) at a speed near 3 knots (5.6 km/h; 3.5 mph).
Armament included eight internal torpedo tubes measuring 53.3 centimetres (21.0 in) in diameter, split evenly with four located in the bow and four in the stern, carrying a total complement of fourteen torpedoes. Surface combat capabilities were supported by two single-mounted deck guns of 100 millimetres (3.9 in) caliber positioned fore and aft of the conning tower. For anti-aircraft defense, one or two machine guns of 13.2 millimetres (0.52 in) caliber were installed.
Construction and career
The submarine Otraria was constructed by CRDA at their shipyard located in Trieste. Initially commissioned in 1931, the vessel was eventually procured by Italy following the cancellation of the original order by Portugal. She was officially launched on 20 March 1935 and subsequently commissioned into service in January 1936.[1] During the Spanish Civil War, Otraria attempted to launch a torpedo at a Republican destroyer near Cartagena, but the torpedo missed its target and instead exploded against a nearby mole.[2] The submarine endured through the duration of the Second World War and was taken out of service on 1 February 1948.[1]
Notes
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.
External links
- Otaria (1935) Marina Militare website
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