K-class submarines
K-class submarines statistics:
| Number completed before 1919 | 17 |
| Number completed after 1919 | 1 |
| Lost in action | 0 |
| Lost accidentally | 5 |
| Prototype date | 1916 |
| Surface tonnage | 1883 |
| Submerged tonnage | 2565 |
| Length | 338 feet |
| Engine | Steam |
| Horsepower | 10,500 |
| Screws | 2 |
| Surface speed | 23 knots |
| Submerged speed | 9 knots |
| Torpedo tubes | 18 inches |
| Number of torpedoes tubes | 8 |
| Guns | 2 x 4 inches; 1 x 3 inches |
| Crew | 50 to 60 |
