C-class submarines
C-class submarines statistics:
| Number completed before 1919 | 38 |
| Number completed after 1919 | 0 |
| Lost in action | 8 |
| Lost accidentally | 2 |
| Prototype date | 1906 |
| Surface tonnage | 290 |
| Submerged tonnage | 320 |
| Length | 145 feet |
| Engine | Petrol |
| Horsepower | 600 |
| Screws | 1 |
| Surface speed | 14 knots |
| Submerged speed | 10 knots |
| Torpedo tubes | 18 inches |
| Number of torpedoes tubes | 2 |
| Guns | 0 |
| Crew | 16 |
