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fighting ships of the world

REGIA MARINA / ITALIAN NAVY (ITALY)

SUBMARINES

AMMIRAGLIO CAGNI large submarines (1941)

Ammiraglio Caracciolo 1941

Ammiraglio Cagni 1942

Name 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
  

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

CRDA diesels / 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

14 - 450 TT (8 bow, 6 stern, 36), 2 x 1 - 100/47 OTO 1938, 2 x 2 - 13.2/76

Complement

85

Diving depth operational, m 100

Ship project history: Largest attack submarines of WWII-era Italian Navy. The project 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.

incomplete Ammiraglio Saint-Bon 1941

Ammiraglio Millo 1941

 

Ivan Gogin, 2009-14