The Pisani-class submarines were built for the Regia Marina (Royal Italian Navy) during the late 1920s. They played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists.
Designed in parallel with the Mameli-class submarines, the Pisani class was larger to accommodate more fuel and give them more range. They displaced 880 metric tons (866 long tons) surfaced and 1,057 metric tons (1,040 long tons) submerged. The submarines were 68.2 meters (223 ft 9 in) long, had a beam of 6.09 meters (20 ft) and a draft of 4.93 meters (16 ft 2 in).[1] They had an operational diving depth of 90 meters (300 ft).[2] Their crew numbered 48 officers and enlisted men.[1]
For surface running, the boats were powered by two 1,500-brake-horsepower (1,119 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 550-horsepower (410 kW) electric motor. Like the Mamelis, their stability was poor and they had to be modified with bulges after completion. This reduced their speeds from 17.25 knots (31.95 km/h; 19.85 mph) on the surface and 8.75 knots (16.21 km/h; 10.07 mph) underwater to 15 knots (28 km/h; 17 mph) and 8.2 knots (15.2 km/h; 9.4 mph) respectively. On the surface, the Pisani class had a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 8 knots (15 km/h; 9.2 mph);[1] submerged, they had a range of 70 nmi (130 km; 81 mi) at 4 knots (7.4 km/h; 4.6 mph).[2]
During the Spanish Civil War, Vettore Pisani made at least one patrol off the Catalan coast in August 1937 during which she made one unsuccessful attack.[4]
Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN0-87021-962-6.
Brescia, Maurizio (2012). Mussolini's Navy: A Reference Guide to the Regina Marina 1930–45. Annapolis, Maryland: Naval Institute Press. ISBN978-1-59114-544-8.
Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN0-85177-146-7.
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. ISBN1-59114-119-2.
pisani, class, submarine, were, built, regia, marina, royal, italian, navy, during, late, 1920s, they, played, minor, role, spanish, civil, 1936, 1939, supporting, spanish, nationalists, vettore, pisani, surfaceclass, overviewoperators, regia, marinapreceded, . The Pisani class submarines were built for the Regia Marina Royal Italian Navy during the late 1920s They played a minor role in the Spanish Civil War of 1936 1939 supporting the Spanish Nationalists Vettore Pisani on the surfaceClass overviewOperators Regia MarinaPreceded byMameli classSucceeded byBandiera classIn commission1928 1947Completed4Scrapped4General characteristicsTypeSubmarineDisplacement880 t 866 long tons surfaced 1 057 t 1 040 long tons submerged Length68 2 m 223 ft 9 in Beam6 09 m 20 ft Draft4 93 m 16 ft 2 in Installed power3 000 bhp 2 200 kW diesels 1 100 hp 820 kW electric motors Propulsion2 shafts diesel electric 2 diesel engines 2 electric motorsSpeed15 knots 28 km h 17 mph surfaced 8 2 knots 15 2 km h 9 4 mph submerged Range5 000 nmi 9 300 km 5 800 mi at 8 knots 15 km h 9 2 mph surfaced 70 nmi 130 km 81 mi at 4 knots 7 4 km h 4 6 mph submerged Test depth90 m 300 ft Crew48Armament1 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 Contents 1 Design and description 2 Boats 3 Service history 4 Notes 5 References 6 External linksDesign and description edit nbsp Right profile line drawing of the Pisani classDesigned in parallel with the Mameli class submarines the Pisani class was larger to accommodate more fuel and give them more range They displaced 880 metric tons 866 long tons surfaced and 1 057 metric tons 1 040 long tons submerged The submarines were 68 2 meters 223 ft 9 in long had a beam of 6 09 meters 20 ft and a draft of 4 93 meters 16 ft 2 in 1 They had an operational diving depth of 90 meters 300 ft 2 Their crew numbered 48 officers and enlisted men 1 For surface running the boats were powered by two 1 500 brake horsepower 1 119 kW diesel engines each driving one propeller shaft When submerged each propeller was driven by a 550 horsepower 410 kW electric motor Like the Mamelis their stability was poor and they had to be modified with bulges after completion This reduced their speeds from 17 25 knots 31 95 km h 19 85 mph on the surface and 8 75 knots 16 21 km h 10 07 mph underwater to 15 knots 28 km h 17 mph and 8 2 knots 15 2 km h 9 4 mph respectively On the surface the Pisani class had a range of 5 000 nautical miles 9 300 km 5 800 mi at 8 knots 15 km h 9 2 mph 1 submerged they had a range of 70 nmi 130 km 81 mi at 4 knots 7 4 km h 4 6 mph 2 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 nine 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 13 2 millimeter 0 52 in machine guns 1 Boats editConstruction data Ship Builder 1 Laid down 3 Launched 3 Completed 3 Fate 3 Giovanni Bausan Cantiere Navale Triestino Trieste 27 January 1926 24 March 1927 15 September 1929 Decommissioned 16 April 1942 converted into an oil bargeMarcantonio Colonna 3 December 1925 26 December 1927 10 July 1929 Scrapped 1943Des Geneys 1 February 1926 14 November 1928 31 October 1929 Decommissioned 16 April 1942 converted into a battery charging hulkVettor Pisani 18 November 1925 24 November 1927 16 June 1929 Decommissioned 23 March 1947Service history editDuring the Spanish Civil War Vettore Pisani made at least one patrol off the Catalan coast in August 1937 during which she made one unsuccessful attack 4 Notes edit a b c d e Chesneau p 307 a b Bagnasco p 141 a b c d Fraccaroli p 127 Frank p 96References editBagnasco 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 Fraccaroli Aldo 1968 Italian Warships of World War II Shepperton UK Ian Allan ISBN 0 7110 0002 6 Frank Willard C Jr 1989 Question 12 88 Warship International XXVI 1 95 97 ISSN 0043 0374 Rohwer Jurgen 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 editVettor Pisani Marina Militare websitePortals nbsp Italy nbsp Engineering Retrieved from https en wikipedia org w index php title Pisani class submarine amp oldid 1202689960, wikipedia, wiki, book, books, library,
