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| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
|---|---|---|---|---|---|---|---|
| Andrea Provana | Fiat - San Giorgio, La Spezia | 10.1915 | 27.1.1918 | 9.1918 | stricken 1.1928 | ||
| Agostino Barbarigo | Fiat - San Giorgio, La Spezia | 10.1915 | 18.11.1917 | 9.1918 | stricken 5.1928 | ||
| Giacomo Nani | Fiat - San Giorgio, La Spezia | 10.1915 | 8.9.1918 | 8.1919 | stricken 8.1935 | ||
| Sebastiano Veniero | Fiat - San Giorgio, La Spezia | 10.1915 | 7.7.1918 | 4.1919 | collision 6.8.1925 |
| Displacement standard, t | 709 |
|---|---|
| Displacement normal, t | 762 / 924 |
| Length, m | 67.0 |
| Breadth, m | 5.90 |
| Draught, m | 3.81 |
| No of shafts | 2 |
| Machinery | 2 Fiat diesels / 2 Ansaldo electric motors |
| Power, h. p. | 2600 / 1400 |
| Max speed, kts | 16 / 9.8 |
| Fuel, t | diesel oil |
| Endurance, nm(kts) | 2070(11.6) / 260(2) |
| Armament | 2 x 1 - 76/40 A1916, 6 - 450 TT (4 bow, 2 stern, 8) |
| Complement | 40 |
| Diving depth operational, m | 50 |
All were commissioned after Armistice. Submarines had progressive enough construction (in particular, batteries have been arranged for the first time in four separated compartments under a main deck), differed by easy manoeuvrability, but diving depth was limited.
None.
Sebastian Vegniero was lost 6.8.1925 as result of collision with Italian merchant s/s Capena.

