Giovanni Bausan 1940
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| Giovanni Bausan | CNT, Monfalcone | 1/1926 | 24/3/1928 | 9/1929 | floating oil depot 4/1942 | |
| Marcantonio Colonna | CNT, Monfalcone | 12/1925 | 26/12/1927 | 7/1929 | hulk 4/1942 | |
| Des Geneys | CNT, Monfalcone | 2/1926 | 14/11/1928 | 10/1929 | floating charging station 4/1942 | |
| Vettor Pisani | CNT, Monfalcone | 11/1925 | 24/11/1927 | 6/1929 | discarded 3/1947 |
|
Displacement standard, t |
808 |
|
Displacement normal, t |
866 / 1040 |
|
Length, m |
68.2 |
|
Breadth, m |
6.09 |
|
Draught, m |
4.93 |
|
No of shafts |
2 |
|
Machinery |
Tosi diesels / CGE electric motors |
|
Power, h. p. |
3000 / 1100 |
|
Max speed, kts |
17.3 / 8.8 |
|
Fuel, t |
diesel oil 70 |
| Endurance, nm(kts) | 5000(8) / 70(4) |
|
Armament |
6 - 533 TT (4 bow, 2 stern, 9), 1 x 1 - 102/35 Schneider-Armstrong 1914-15, 2 x 1 - 13.2/76 |
|
Complement |
48 |
| Diving depth operational, m | 90 |
Ship project history: Project was developed by builder under the same technical requirements, as Mameli class. Single-hulled. They exceeded Mameli class on endurance, but, as well as the latter, had insufficient stability. Soon after commission they received external bulges: the stability was raised, but speed has fallen from 17.3/8.8 to 15/8.2kts.
Modernizations: 1930, all: bulges were fitted, max speed was 15 / 8.2 kts.
Naval service: To the war beginning they were considered become outdated, and since 1942 three boats were disarmed and converted to battery recharging stations and fuel oil hulks.
Vettor Pisani 1943
© Ivan Gogin, 2009-11