Preceded by:
NoneSucceeded by:
None| Ship | Code | Builder | Laid | Launch | Comm | Decomm | Fate | ||
| Flutto (I): | |||||||||
 |
Cernia | Tosi | 12/07/1943 | - | - | - | Cancelled | ||
|
Dentice | Tosi | 23/07/1943 | - | - | - | Cancelled | ||
|
Flutto † | CRDA | 01/12/1941 | 19/11/1942 | 20/03/1943 | 11/07/1943 | † | Loss by torpedo | |
|
Gorgo † | CRDA | 12/05/1941 | 31/01/1942 | 11/11/1942 | 21/05/1943 | † | Loss by surface ship | |
|
Grongo | OTO | 01/04/1942 | 06/05/1943 | - | - | Scuttled incomplete | ||
|
Marea | CRDA | 01/12/1941 | 10/12/1942 | 07/05/1943 | 01/02/1948 | Transferred | ||
|
Murena † | OTO | 01/04/1942 | 11/04/1943 | 25/08/1943 | 09/09/1943 | † | Scuttled active | |
|
Nautilo † | CRDA | 03/01/1942 | 23/03/1943 | 21/06/1943 | 10/09/1943 | † | Scuttled active | |
|
Sparide † | OTO | 28/04/1942 | 21/02/1943 | 21/02/1943 | 09/09/1943 | † | Scuttled active | |
|
Spigola | Tosi | 10/06/1943 | - | - | - | Cancelled, scrapped | ||
|
Tritone † | CRDA | 15/04/1941 | 03/01/1942 | 10/10/1942 | 19/01/1943 | † | Loss by depth charges | |
|
Vortice / PV1 | S502 | CRDA | 03/01/1942 | 23/02/1943 | 21/06/1943 | 01/08/1967 | Sold/Scrapped | |
| Flutto (II): | |||||||||
|
Alluminio | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
|
Antimonio | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
|
Bario | CRDA | 15/03/1943 | 23/01/1944 | - | - | Rebuilt/Converted | ||
|
Cromo | CRDA | 01/09/1943 | - | - | - | Captured/Surrendered | ||
|
Ferro | CRDA | 02/06/1943 | - | - | - | Captured/Surrendered | ||
|
Fosforo | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
|
Litio | CRDA | 31/03/1943 | 19/02/1944 | - | - | Captured/Surrendered | ||
|
Manganese | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
|
Piombo | CRDA | 02/08/1943 | - | - | - | Captured/Surrendered | ||
|
Potassio | CRDA | 03/05/1943 | - | - | - | Captured/Surrendered | ||
|
Rame | CRDA | 02/06/1943 | - | - | - | Captured/Surrendered | ||
|
Silicio | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
|
Sodio | CRDA | 03/05/1943 | 16/03/1944 | - | - | Captured/Surrendered | ||
|
Zinco | CRDA | 02/08/1943 | - | - | - | Captured/Surrendered | ||
|
Zolfo | OTO | 09/12/1942 | - | - | - | Captured/Surrendered | ||
| Flutto (Pietro Calvi): | |||||||||
|
Pietro Calvi | S503 | CRDA | 15/03/1943 | 21/06/1959 | 16/12/1961 | 01/04/1973 | Sold/Scrapped | |
| Ship | Code | Former | Code | Comm | Decomm | Fate | |||
 |
I-41 | |
Marea | 07/02/1949 | 02/1956 | Struck |