NAVYPEDIA

Photo

incomplete Ammiraglio Saint-Bon 1941

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Ammiraglio Cagni			CRDA, Monfalcone	9.1939	20.7.1940	4.1941	discarded 2.1948
Ammiraglio Caracciolo			CRDA, Monfalcone	10.1939	16.10.1940	6.1941	scuttled 11.12.1941
Ammiraglio Millo			CRDA, Monfalcone	10.1939	31.8.1940	5.1941	sunk 14.3.1942
Ammiraglio Saint-Bon			CRDA, Monfalcone	9.1939	6.6.1940	3.1941 (delivered incomplete)	sunk 5.1.1942

Technical data

Displacement standard, t	1504
Displacement normal, t	1653 / 2136
Length, m	87.9
Breadth, m	7.76
Draught, m	5.72
No of shafts	2
Machinery	2 CRDA diesels / 2 CRDA electric motors
Power, h. p.	4370 / 1800
Max speed, kts	17 / 8.5
Fuel, t	diesel oil 180
Endurance, nm(kts)	10700(12) / 107(3.5)
Armament	2 x 1 - 100/47 OTO 1938, 2 x 2 - 13.2/76, 14 - 450 TT (8 bow, 6 stern, 36)
Electronic equipment	hydrophone
Complement	85
Diving depth operational, m	100

Standard scale images

Graphics

Project history

Largest attack submarines of WWII-era Italian Navy. The design was developed by builder. Single-hulled, with external bulges. This class submarines were intended, first of all, for operations against merchant shipping on ocean routes. In connection with that torpedoes calibre was decreased, but the number of spare torpedoes was sharply increased. Thanks to large dimensions Cagni class submarines had good seaworthiness and habitability, thus differed by quite good manoeuvrability.

In 1943 Ammiraglio Cagni was converted to transport submarine for routes to Japan.

Modernizations

1943, Ammiraglio Cagni: was converted to transport.

Naval service

Ammiraglio Caracciolo was scuttled by crew 11.12.1941 near Bardia, having received heavy damages after attack of British escort destroyer Farndale. Ammiraglio Saint-Bon was sunk 5.1.1942 N off Sicily by British submarine Upholder. Ammiraglio Millo was sunk 14.3.1943 in Ionian sea by British submarine Ultimatum.