S-class submarine
S-class submarine statistics:
| Number completed before 1919 | 3 |
| Number completed after 1919 | 0 |
| Lost in action | 0 |
| Lost accidentally | 0 |
| Prototype date | 1914 |
| Surface tonnage | 265 |
| Submerged tonnage | 386 |
| Length | 148 feet |
| Engine | Diesel |
| Horsepower | 650 |
| Screws | 2 |
| Surface speed | 13 knots |
| Submerged speed | 8.5 knots |
| Torpedo tubes | 18 inches |
| Number of torpedoes tubes | 2 |
| Guns | 0 |
| Crew | 18 |
