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 4/1937 (Gonzalez Lopez), returned 1938, 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 4/1937 (Aguilar Tablada), returned 1938, 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, 2009-11