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NAZARIO SAURO attack submarines (1979 - 1982)


Photo



Nazario Sauro 1980

Ships


Name No Yard 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


Technical data


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)

Electronic equipment

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



Standard scale images


<i>Nazario Sauro </i>1990
Nazario Sauro 1990


Graphics


<i>Nazario Sauro </i>1980
Nazario Sauro 1980
<i>Carlo Fecia di Cossato </i>2001  
Carlo Fecia di Cossato 2001  


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.