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AMMIRAGLIO CAGNI large submarines (1941)


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, t1504
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 equipmenthydrophone
Complement

85

Diving depth operational, m100


Standard scale images


<i>Ammiraglio Caracciolo </i>1941
Ammiraglio Caracciolo 1941
<i>Ammiraglio Cagni</i> 1942
Ammiraglio Cagni 1942


Graphics


incomplete <i>Ammiraglio Saint-Bon</i> 1941
incomplete Ammiraglio Saint-Bon 1941
<i>Ammiraglio Millo</i> 1941  
Ammiraglio Millo 1941  


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.