F1 1918
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| F1 | Fiat - San Giorgio, La Spezia | 5/1915 | 2/4/1916 | 10/1916 | stricken 6/1930 | |
| F2 | Fiat - San Giorgio, La Spezia | 6/1915 | 4/6/1916 | 9/1916 | stricken 2/1929 | |
| F3 | Fiat - San Giorgio, La Spezia | 5/1915 | 6/7/1916 | 10/1916 | stricken 9/1919 | |
| F4 | Orlando, Livorno | 6/1915 | 19/11/1916 | 1/1917 | stricken 9/1919 | |
| F5 | Fiat - San Giorgio, La Spezia | 5/1915 | 12/8/1916 | 11/1916 | stricken 7/1929 | |
| F6 | Orlando, Livorno | 6/1915 | 4/3/1917 | 5/1917 | stricken 8/1935 | |
| F7 | Fiat - San Giorgio, La Spezia | 7/1915 | 23/12/1916 | 3/1917 | stricken 2/1929 | |
| F8 | Fiat - San Giorgio, La Spezia | 6/1915 | 13/11/1916 | 2/1917 | stricken 9/1919 | |
| F9 | Fiat - San Giorgio, La Spezia | 6/1915 | 24/9/1916 | 12/1916 | stricken 8/1928 | |
| F10 | Fiat - San Giorgio, La Spezia | 8/1915 | 19/10/1916 | 12/1916 | stricken 6/1930 | |
| F11 | Fiat - San Giorgio, La Spezia | 7/1915 | 17/9/1916 | 12/1916 | stricken 9/1919 | |
| F12 | Fiat - San Giorgio, La Spezia | 7/1915 | 30/11/1916 | 2/1917 | stricken 7/1929 | |
| F13 | Orlando, Livorno | 9/1915 | 20/5/1917 | 8/1917 | stricken 8/1935 | |
| F14 | Odero, Sestri Ponente | 10/1915 | 23/1/1917 | 3/1917 | collision 6/8/1928 | |
| F15 | Orlando, Livorno | 10/1915 | 27/5/1917 | 8/1917 | stricken 5/1929 | |
| F16 | Odero, Sestri Ponente | 10/1915 | 19/3/1917 | 4/1917 | stricken 5/1928 | |
| F17 | Orlando, Livorno | 10/1915 | 3/6/1917 | 8/1917 | stricken 11/1929 | |
| F18 | Odero, Sestri Ponente | 10/1915 | 15/5/1917 | 7/1917 | stricken 10/1930 | |
| F19 | Fiat - San Giorgio, La Spezia | 7/1915 | 18/4/1917 | --- // 1917 | completed for Portugal (Foca) | |
| F20 | Fiat - San Giorgio, La Spezia | 7/1915 | 1917 | --- // 1917 | completed for Portugal (Golfinho) | |
| F21 | Fiat - San Giorgio, La Spezia | 7/1915 | 9/8/1917 | --- // 1917 | completed for Portugal (Hidra) | |
| F19 | Fiat - San Giorgio, La Spezia | 9/1915 | 10/3/1918 | 4/1918 | stricken 6/1930 | |
| F20 | Fiat - San Giorgio, La Spezia | 9/1915 | 17/3/1918 | 6/1918 | stricken 7/1935 | |
| F21 | Fiat - San Giorgio, La Spezia | 8/1915 | 19/5/1918 | 8/1918 | stricken 10/1930 | |
| F22 | Fiat - San Giorgio, La Spezia | 8/1915 | 1917 | --- // 1917 | completed for Spain (A1 Narciso Monturiol) | |
| F23 | Fiat - San Giorgio, La Spezia | 8/1915 | 1917 | --- // 1917 | completed for Spain (A2 Cosme Garcia) | |
| F24 | Fiat - San Giorgio, La Spezia | 8/1915 | 1917 | --- // 1917 | completed for Spain (A3) |
|
Displacement standard, t |
|
|
Displacement normal, t |
262 / 319 |
|
Length, m |
45.1 wl 45.6 oa |
|
Breadth, m |
4.22 |
|
Draught, m |
3.10 |
|
No of shafts |
2 |
|
Machinery |
Fiat diesels / Savigliano electric motors |
|
Power, h. p. |
670 / 500 |
|
Max speed, kts |
12.5 / 8.2 |
|
Fuel, t |
diesel oil 12 |
| endurance, nm(kts) | 1600(8.5) / 80(4) |
|
Armament |
2 - 450 TT (bow, 4), 1 x 1 - 76/30 Armstrong 1914 |
|
Complement |
26 |
| Diving depth operational, m | 40 |
Ship project history: The most numerous series of Italian submarines. The project was developed by Fiat-San Giorgio. First 3 submarines were built in 1913-1914 for Brazil, later 3 for Portugal and 3 more for Spain. Boats had an easy manoeuvrability. F8 was sunk 14/2/1917 as result of accident during trials, but was raised and commissioned in September of the same year.
Modernizations: None.
Naval service: F14 was lost 6/8/1928 because of collision with destroyer Giuseppe Missori.
F1
© Ivan Gogin, 2009-11