A-class submarines
A-class submarines statistics:
| Number completed before 1919 | 13 |
| Number completed after 1919 | 0 |
| Lost in action | 0 |
| Lost accidentally | 4 |
| Prototype date | 1903 |
| Surface tonnage | 165 |
| Submerged tonnage | 180 |
| length | 100 feet |
| Engine | Petrol |
| Horsepower | 450 |
| Screws | 1 |
| Surface speed | 11.5 knots |
| Submerged speed | 7 knots |
| Torpedo tubes | 18 inches |
| Number of torpedoes tubes | 2 |
| Guns | 0 |
| Crew | 11 to 14 |
