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fighting ships of the world

ITALIAN NAVY (ITALY)

SUBMARINES

NAZARIO SAURO attack submarines (1979 - 1982)

Nazario Sauro 1990

Name No Builder Laid down Launched Comm Fate
Nazario Sauro S518 CRDA, Monfalcone 26/6/1974 9/10/1976 12/2/1980 stricken 4/2002
Carlo Fecia di Cossato S519 CRDA, Monfalcone 15/11/1975 16/11/1977 5/11/1979 stricken 4/2005
Leonardo da Vinci S520 Italcantieri, Monfalcone 8/6/1978 20/10/1979 23/10/1981 stricken 6/2010
Guglielmo Marconi S521 Italcantieri, Monfalcone 23/10/1979 20/9/1980 11/9/1982 stricken 10/2003

 

Displacement standard, t

 

Displacement normal, t

1456 / 1641

Length, m

63.9

Breadth, m

6.83

Draught, m

5.70

No of shafts

1

Machinery

3 GMT A210-16NM diesel-generators, 1 Marelli electric motor

Power, h. p.

3515

Max speed, kts

11 / 19.3

Fuel, t

diesel oil 144

Endurance, nm (kts) 6150(11) / 250(4)

Armament

6 - 533 TT (6 bow B-512, 12 torpedoes)

Sensors

BPS-704 radar, IPD-70/S, MD 100S, Velox M5 sonars, BLD-727 Thetis ECM suite, SISU-1 CCS

Complement

49

Diving depth operational, m

250

   

Ship project history: This class was delayed by both financial and technical problems. Sauro and Cossato originally ordered in 1967, but budget difficulties caused them to be cancelled and they were not reordered until 1972. Their completion was then delayed because their batteries did not work properly, and different batteries had to be purchased from Sweden. The first two did not commission until March 1980. These were the first Italian submarines built of HY-80 steel.

Modernizations: 1990, Nazario Sauro, Carlo Fecia di Cossato; 1992, Guglielmo Marconi; 1995, Leonardo da Vinci: - SISU-1 CCS; + Sub-Harpoon SSM (4 UGM-84 instead of 4 torpedoes), BSN-716(v)1 CCS

Naval service: No significant events.

Nazario Sauro 1980

Carlo Fecia di Cossato 2001

 

Ivan Gogin, 2017