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Sauro-class submarine

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The Nazario Sauro class are diesel-electric submarines operated by the Italian Navy. All boats were built by Fincantieri in Monfalcone.

Class overview
BuildersFincantieri
OperatorsItalian Navy
Preceded by
Succeeded byTodaro class
In service1980
In commission1979
Completed8
Active4
Retired4
Preserved1
General characteristics
TypeSubmarine
Displacement
  • I and II Batches:
  • 1,456 tons surfaced
  • 1,641 tons submerged
  • III Batch:
  • 1,476 tons surfaced
  • 1,662 tons submerged
  • IV Batch:
  • 1,653 tons surfaced
  • 1,862 tons submerged
Length
  • I and II Batches:
  • 63.85 m
  • III Batch:
  • 64.36 m
  • IV Batch:
  • 66.00 m
Beam6.83 m
Draught
  • I and II Batches:
  • 5.3 m
  • III Batch:
  • 5.6 m
  • IV Batch:
  • 6.3 m
Propulsion
  • 3 x shaft diesel Grandi Motori Trieste GMT 210.16-NM (2,7 mW)
  • I, II and III Batches::
  • 1 electric engine Magneti Marelli (2.686 kW)
  • IV Batch::
  • 1 electric engine ABB
Speed
  • 12 knots (22 km/h; 14 mph) surfaced
  • 19 knots (35 km/h; 22 mph) submerged
Range2,500 nmi (4,600 km; 2,900 mi) to 12 knots (22 km/h; 14 mph)
Test depth300 m
Complement7 officers, 44 men
Sensors and
processing systems
  • I and II Batches:
  • 1 x radar SMA SPS-704
  • 1 x sonar Elsag-USEA IPD70/S
  • Submarine Action Information System SMA/Datamat MM/SBN-716 SACTIS
  • periscopes Barr & Stroud CK31 Search and CH81 Attack Periscopes
  • communication system by ELMER
  • III and IV Batches, after update 1999/2005:
  • 1 x radar SMA MM/BPS 704-V2
  • 1 x sonar STN Atlas Elektronik – ISUS 90-20
  • Combat System STN Atlas Elektronik – ISUS 90-20
  • periscopes Kollmorgen
  • communication system IRSC, by Hagenuk Marinekommunikation
Electronic warfare
& decoys
  • I and II Batches:
  • ESM systems Elettronica Spa, Thetis ELT/124-s and MM-BLD/1
  • III and IV Batches, after update 1999/2005:
  • ESM systems Elettronica Spa, BLD-727
Armament
  • I and II Batches::
  • 6 x 533 mm torpedo tubes
  • 12 torpedoes Whitehead A-184 or 24 mines carried
  • III and IV Batches::
  • 6 x 533 mm torpedo tubes
  • 12 torpedoes Whitehead A-184 Mod.3 or 24 mines carried

Contents

Italy developed the Sauro-class submarines in the 1970s to counter the underwater threat of the Soviet Union. Italian shipbuilding company Fincantieri built these vessels in Monfalcone.

The class entered service in 1980 and replaced the mixed fleet of Toti, Tang and Tench class submarines. A further two units, Leonardo da Vinci and the Guglielmo Marconi were commissioned in 1981 and 1982. In 1983 and 1988 two additional pairs of boats were ordered to the Improved Sauro class design. They were delivered in 1988-89 and 1994-95 by Fincantieri. They were eventually succeeded by the Todaro-class (the joint German-Italian Type 212-based group).

Sauro and Cossato were Batch I boats while da Vinci and Marconi were Batch II boats. Pelosi and Prini made up Batch III and Longobardo and Priaroggia were the two Batch IV boats.

  • Batches I and II boats displacement was 1,456 tons surfaced and 1,641 tons submerged. The boats carried SMA SPS-704 radar and Elsag-USEA IPD70/S sonar system.
  • Batch III 1,476 tons surfaced and 1,662 tons submerged. These boats had SMA MM/BPS-704-V2 radar and STN Atlas Elektronik-ISUS 90-20 series sonar.
  • Batch IV 1,653 tons surfaced and 1,862 submerged weight.

Lengths varied between the batches. Beams measured 6.8 meters for all of the class. Draught was increased progressively from 5.3 meters to 6.3 meters. Armament of all the batches was 6 x 533mm torpedo tubes with 12 reloads carried. Batches I and II used Whitehead A-184 torpedo series while batches III and IV used upgraded Whitehead A-184 Mod 3 series.

The Sauro and Marconi were retired in 2001 and 2002 respectively. In 2005, the remaining two original submarines were retired and the remaining four, the Salvatore Pelosi (S522), Giuliano Prini (S523), Primo Longobardo (S524), and Gianfranco Gazzana Priaroggia (S525) were upgraded. These upgrades included replacement of the acoustic sensors and weapons control system, improvements in the communications system, and extension of the service lines.

US approached Italy to purchase retired Sauro-class submarines. Italy tentatively agreed but Taiwan rejected the offer. The plan called for the US to purchase four submarines when decommissioned, then refurbish them in the US and sell them to Taiwan. Once refurbished, the Italian submarines were expected to be operational for another 15 years, and the deal included an extension program.

There are three sub groups built in four batches:

  • Sauro at the Genoa Galata Museum

Italian Navy - Sauro class
Pennant
number
Name Batch Shipyard Hull
number
Laid
down
Launched Commissioned Decommissioned
S 518 Nazario Sauro I Fincantieri
Monfalcone
(Gorizia)
4257 26 June 1974 9 October 1976 1 March 1980 30 April 2002
S 519 Carlo Feccia di Cossato I Fincantieri
Monfalcone
(Gorizia)
4258 15 November 1975 16 November 1977 5 November 1979 1 April 2005
S 520 Leonardo da Vinci II Fincantieri
Monfalcone
(Gorizia)
4339 1 July 1976 20 October 1979 6 November 1982 30 June 2010
S 521 Guglielmo Marconi II Fincantieri
Monfalcone
(Gorizia)
4340 23 October 1979 20 September 1980 11 September 1982 1 October 2003
S 522 Salvatore Pelosi III Fincantieri
Monfalcone
(Gorizia)
4405 23 July 1985 29 November 1986 14 July 1988 in service
S 523 Giuliano Prini III Fincantieri
Monfalcone
(Gorizia)
4406 30 July 1987 12 December 1987 17 May 1989 in service
S 524 Primo Longobardo IV Fincantieri
Monfalcone
(Gorizia)
5878 19 December 1991 20 June 1992 14 December 1993 in service
S 525 Gianfranco Gazzana Priaroggia IV Fincantieri
Monfalcone
(Gorizia)
5879 12 November 1992 26 June 1993 12 June 1995 in service
  1. (in Italian) Classe Sauro, Marina Militare official website, march 2011.
  2. (in Italian) Site about the submarine maintained by the genoese museum.
  3. "Navy ships".
  4. http://www.marina.difesa.it/uominimezzi/sommergibili/Pagine/ClasseSauro.aspx
  • Conway, All the World's Fighting Ships 1947-1995
Wikimedia Commons has media related toSauro class submarines.

Sauro-class submarine
Sauro class submarine Language Watch Edit This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Sauro class submarine news newspapers books scholar JSTOR January 2013 Learn how and when to remove this template message The Nazario Sauro class are diesel electric submarines operated by the Italian Navy All boats were built by Fincantieri in Monfalcone Class overviewBuildersFincantieriOperators Italian NavyPreceded byToti class Tang class Tench classSucceeded byTodaro classIn service1980In commission1979Completed8Active4Retired4Preserved1General characteristicsTypeSubmarineDisplacementI and II Batches 1 1 456 tons surfaced 1 641 tons submerged III Batch 1 1 476 tons surfaced 1 662 tons submerged IV Batch 1 1 653 tons surfaced 1 862 tons submergedLengthI and II Batches 63 85 m III Batch 64 36 m IV Batch 66 00 mBeam6 83 mDraughtI and II Batches 5 3 m III Batch 5 6 m IV Batch 6 3 mPropulsion3 x shaft diesel Grandi Motori Trieste GMT 210 16 NM 2 7 mW I II and III Batches 1 electric engine Magneti Marelli 2 686 kW IV Batch 1 electric engine ABBSpeed12 knots 22 km h 14 mph surfaced 19 knots 35 km h 22 mph submergedRange2 500 nmi 4 600 km 2 900 mi to 12 knots 22 km h 14 mph Test depth300 mComplement7 officers 44 menSensors and processing systemsI and II Batches 1 x radar SMA SPS 704 1 x sonar Elsag USEA IPD70 S Submarine Action Information System SMA Datamat MM SBN 716 SACTIS periscopes Barr amp Stroud CK31 Search and CH81 Attack Periscopes communication system by ELMER III and IV Batches after update 1999 2005 1 x radar SMA MM BPS 704 V2 1 x sonar STN Atlas Elektronik ISUS 90 20 Combat System STN Atlas Elektronik ISUS 90 20 periscopes Kollmorgen communication system IRSC by Hagenuk MarinekommunikationElectronic warfare amp decoysI and II Batches ESM systems Elettronica Spa Thetis ELT 124 s and MM BLD 1 III and IV Batches after update 1999 2005 ESM systems Elettronica Spa BLD 727ArmamentI and II Batches 6 x 533 mm torpedo tubes 12 torpedoes Whitehead A 184 or 24 mines carried III and IV Batches 6 x 533 mm torpedo tubes 12 torpedoes Whitehead A 184 Mod 3 or 24 mines carried Contents 1 History 2 Design 3 List of boats 4 See also 5 Notes 6 Bibliography 7 External linksHistory EditItaly developed the Sauro class submarines in the 1970s to counter the underwater threat of the Soviet Union Italian shipbuilding company Fincantieri built these vessels in Monfalcone The class entered service in 1980 and replaced the mixed fleet of Toti Tang and Tench class submarines A further two units Leonardo da Vinci and the Guglielmo Marconi were commissioned in 1981 and 1982 In 1983 and 1988 two additional pairs of boats were ordered to the Improved Sauro class design They were delivered in 1988 89 and 1994 95 by Fincantieri They were eventually succeeded by the Todaro class the joint German Italian Type 212 based group Sauro and Cossato were Batch I boats while da Vinci and Marconi were Batch II boats Pelosi and Prini made up Batch III and Longobardo and Priaroggia were the two Batch IV boats Batches I and II boats displacement was 1 456 tons surfaced and 1 641 tons submerged The boats carried SMA SPS 704 radar and Elsag USEA IPD70 S sonar system Batch III 1 476 tons surfaced and 1 662 tons submerged These boats had SMA MM BPS 704 V2 radar and STN Atlas Elektronik ISUS 90 20 series sonar Batch IV 1 653 tons surfaced and 1 862 submerged weight Lengths varied between the batches Beams measured 6 8 meters for all of the class Draught was increased progressively from 5 3 meters to 6 3 meters Armament of all the batches was 6 x 533mm torpedo tubes with 12 reloads carried Batches I and II used Whitehead A 184 torpedo series while batches III and IV used upgraded Whitehead A 184 Mod 3 series The Sauro and Marconi were retired in 2001 and 2002 respectively In 2005 the remaining two original submarines were retired and the remaining four the Salvatore Pelosi S522 Giuliano Prini S523 Primo Longobardo S524 and Gianfranco Gazzana Priaroggia S525 were upgraded These upgrades included replacement of the acoustic sensors and weapons control system improvements in the communications system and extension of the service lines US approached Italy to purchase retired Sauro class submarines Italy tentatively agreed but Taiwan rejected the offer The plan called for the US to purchase four submarines when decommissioned then refurbish them in the US and sell them to Taiwan Once refurbished the Italian submarines were expected to be operational for another 15 years and the deal included an extension program Design EditThere are three sub groups built in four batches S 518 Nazario Sauro named after Nazario Sauro since September 2009 this unit has been a museum ship in Genoa part of Galata Museo del mare 2 S 519 Carlo Fecia di Cossato named after Italian World War II submarine commander Carlo Fecia di Cossato S 520 Leonardo da Vinci named after Leonardo da Vinci S 521 Guglielmo Marconi named after Guglielmo Marconi S 522 Salvatore Pelosi named after Italian World War II submarine commander and war hero Salvatore Pelosi S 523 Giuliano Prini named after Italian World War II submarine commander and war hero Giuliano Prini S 524 Primo Longobardo named after Italian World War II submarine commander and war hero Primo Longobardo S 525 Gianfranco Gazzana Priaroggia named after Italian World War II submarine commander and war hero Gianfranco Gazzana PriaroggiaList of boats Edit Sauro at the Genoa Galata Museum Italian Navy Sauro classPennant number Name Batch Shipyard Hull number Laid down Launched Commissioned DecommissionedS 518 Nazario Sauro I Fincantieri Monfalcone Gorizia 4257 3 26 June 1974 9 October 1976 1 March 1980 30 April 2002S 519 Carlo Feccia di Cossato I Fincantieri Monfalcone Gorizia 4258 15 November 1975 16 November 1977 5 November 1979 1 April 2005S 520 Leonardo da Vinci II Fincantieri Monfalcone Gorizia 4339 1 July 1976 20 October 1979 6 November 1982 30 June 2010S 521 Guglielmo Marconi II Fincantieri Monfalcone Gorizia 4340 23 October 1979 20 September 1980 11 September 1982 1 October 2003S 522 Salvatore Pelosi III Fincantieri Monfalcone Gorizia 4405 23 July 1985 29 November 1986 14 July 1988 4 in serviceS 523 Giuliano Prini III Fincantieri Monfalcone Gorizia 4406 30 July 1987 12 December 1987 17 May 1989 in serviceS 524 Primo Longobardo IV Fincantieri Monfalcone Gorizia 5878 19 December 1991 20 June 1992 14 December 1993 in serviceS 525 Gianfranco Gazzana Priaroggia IV Fincantieri Monfalcone Gorizia 5879 12 November 1992 26 June 1993 12 June 1995 4 in serviceSee also EditList of submarine classes in serviceNotes Edit a b c in Italian Classe Sauro Marina Militare official website march 2011 in Italian Site about the submarine maintained by the genoese museum Navy ships a b http www marina difesa it uominimezzi sommergibili Pagine ClasseSauro aspxBibliography EditConway All the World s Fighting Ships 1947 1995External links EditWikimedia Commons has media related to Sauro class submarines Sommergibili Marina Militare website Retrieved from https en wikipedia org w index php title Sauro class submarine amp oldid 1048735845, wikipedia, wiki, book,

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