Sauro-class submarine

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

Class overview
BuildersFincantieri
Operators Italian 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
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