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fighting ships of the world

REGIA MARINA / ITALIAN NAVY (ITALY)

SUBMARINES

PERLA medium submarines (1936)

Perla 1940

Iride 1940

Name No Builder Laid down Launched Comp Fate
Ambra   OTO, Muggiano 8/1935 28/5/1936 8/1936 scuttled 9/9/1943
Berillo   CRDA, Monfalcone 9/1935 14/6/1936 8/1936 sunk 2/10/1940
Corallo   CRDA, Monfalcone 9/1935 2/8/1936 9/1936 sunk 13/12/1942
Diaspro   CRDA, Monfalcone 9/1935 5/7/1936 8/1936 discarded 2/1948
Gemma   CRDA, Monfalcone 9/1935 21/5/1936 7/1936 sunk 8/10/1940
Iride   OTO, Muggiano 9/1935 30/7/1936 11/1936 to Nationalist Spain 10/1937-1/1938 (González López), sunk 22/8/1940
Malacite   OTO, Muggiano 8/1935 15/7/1936 11/1936 sunk 9/2/1943
Onice   OTO, Muggiano 8/1935 15/6/1936 9/1936 to Nationalist Spain 10/1937-1/1938 (Aguilar Tablada), discarded 3/1947
Perla   CRDA, Monfalcone 8/1935 3/5/1936 7/1936 captured by Britain 9/7/1942 (Greek Matrozos)
Turchese   CRDA, Monfalcone 9/1935 19/7/1936 9/1936 discarded 2/1948
  

Displacement standard, t

622 - 626

Displacement normal, t

680 / 844

Length, m

60.2

Breadth, m

6.45

Draught, m

4.70

No of shafts

2

Machinery

Ambra, Malachite: Tosi diesels / Marelli electric motors

Berillo, Gemma, Iride, Onice, Perla: Fiat diesels / CRDA electric motors

Corallo, Diaspro, Turchese: CRDA diesels / CRDA electric motors

Power, h. p.

1200 / 800

Max speed, kts

14 / 7.5

Fuel, t

diesel oil 80

Endurance, nm(kts) 2500(12) / 74(4)

Armament

6 - 533 TT (4 bow, 2 stern, 12), 1 x 1 - 100/47 OTO 1935, 2 x 1 - 13.2/76 or 2 x 2 - 13.2/76

Complement

45

Diving depth operational, m 80

Ship project history: Repetition of Sirena class with a little increased fuel stowage.

Iride and Ambra were converted for carrying of human torpedoes in 1940 and 1942 respectively. 100mm/47 gun has been thus removed, and on deck four (Iride) or three (Ambra) cylindrical transportation containers were installed.

Modernizations: 1940, Iride: - 1 x 1 - 100/47; + 4 SLC human torpedoes.

1942, Ambra: - 1 x 1 - 100/47; + 3 SLC human torpedoes

Naval service: Iride 22/8/1940 was sunk by torpedo from air group of British aircraft carrier Eagle near Tobruk. Berillo was sunk 2/10/1940 in Mediterranean sea by DCs of British destroyers Hasty and Havock. Gemma was erroneously sunk 8/10/1940 in Aegean sea by Italian submarine Tricheco. Perla was captured 9/7/1942 near Beirut by British corvette Hyacinth, transferred to Greece and renamed Matrozos. Corallo was sunk 13/12/1942 near Bougie (Algeria) by gunfire of British sloop Enchantress. Malacite was sunk 9/2/1943 S of Sardinia by Dutch submarine Dolfijn. Ambra was scuttled by crew 9/9/1943 in La Spezia harbour.

Turchese

 

Ivan Gogin, 2009-14