NAVYPEDIA

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

Graphics

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.