| No | Name | Builder | Laid down | Launched | Comm | Fate |
| SS53 | N1 | Todd, Seattle | 7/1915 | 30/12/1916 | 9/1917 | stricken 12/1930 |
| SS54 | N2 | Todd, Seattle | 7/1915 | 16/1/1917 | 9/1917 | stricken 12/1930 |
| SS55 | N3 | Todd, Seattle | 7/1915 | 21/2/1917 | 9/1917 | stricken 12/1930 |
| SS56 | N4 | Lake, Bridgeport | 3/1915 | 27/11/1916 | 6/1918 | stricken 9/1922 |
| SS57 | N5 | Lake, Bridgeport | 4/1915 | 22/3/1917 | 6/1918 | stricken 9/1922 |
| SS58 | N6 | Lake, Bridgeport | 4/1915 | 21/4/1917 | 7/1918 | stricken 7/1922 |
| SS59 | N7 | Lake, Bridgeport | 4/1915 | 19/5/1917 | 6/1918 | stricken 6/1922 |
|
Displacement standard, t |
|
|
Displacement normal, t |
SS53 - 55: 348 / 414 SS56 - 59: 340 / 414 |
|
Length, m |
SS53 - 55: 44.9 SS56 - 59: 47.3 |
|
Breadth, m |
SS53 - 55: 4.80 SS56 - 59: 4.40 |
|
Draught, m |
3.80 |
|
No of shafts |
2 |
|
Machinery |
2 NLSE diesels / 2 electric motors |
|
Power, h. p. |
600 / 300 |
|
Max speed, kts |
13 / 11 |
|
Fuel, t |
diesel oil |
| Endurance, nm (kts) | 3500 / 30(5) |
|
Armament |
4 - 450 TT (bow, 8) |
|
Complement |
SS53 - 55: 25 SS56 - 59: 29 |
|
Diving depth operational, m |
60 |
Ship project history: Small submarines, on which engines power and speed were sacrificed for better reliability of machinery. Had no artillery.
Modernizations: none.
Naval service: No significant events.
N1 1917
© Ivan Gogin, 2008-10