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FIGHTING SHIPS OF THE WORLD
ITALY
SUBMARINES
A1 midget submarines (1915 - 1916)
Photo
A5 1916
Ships
| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
A1-6 |
R. Arsenale La Spezia: A1-6 |
1915: A1 1916: A2-6 |
None |
None |
9/1918: A1-6 |
Technical data
| Displacement standard, t | |
|---|---|
| Displacement normal, t | 31 / 37 |
| Length, m | 13.5 pp |
| Breadth, m | 2.22 |
| Draught, m | 2.28 |
| No of shafts | 1 |
| Machinery | 1 electric motor |
| Power, h. p. | 40 - 60 |
| Max speed, kts | 6.8 / 5.1 |
| Fuel, t | battery only |
| Endurance, nm(kts) | 12(6.6) / 8.5(4.6) |
| Armament | 2 - 450 TC (ext cages) |
| Complement | 4 |
| Diving depth operational, m | 50 |
Standard scale images
A2 1918
Graphics
A5 1916
Project history
These very small boats, designed by Eng Vice Admiral Edgardo Ferrati and built at La Spezia N Yd, were conceived for the defence of some Adriatic harbours, such as Venice, Ancona, Brindisi. They were transportable by railway. They were not successful, had a very low endurance and their periscope was not retractable.
Modernizations
None.
Naval service
No significant events.
