O4 1917
O8 1943
| No | Name | Builder | Laid down | Launched | Comm | Fate |
| SS62 | O1 | Portsmouth N Yd | 3/1917 | 9/7/1918 | 11/1918 | stricken 3/1938 |
| SS63 | O2 | Puget Sound N Yd, Bremerton | 7/1917 | 24/5/1918 | 10/1918 | stricken 8/1945 |
| SS64 | O3 | Fore River, Quincy | 12/1916 | 29/9/1917 | 6/1918 | stricken 10/1945 |
| SS65 | O4 | Fore River, Quincy | 12/1916 | 20/10/1917 | 5/1918 | stricken 10/1945 |
| SS66 | O5 | Fore River, Quincy | 12/1916 | 11/11/1917 | 6/1918 | collision 28/10/1923 |
| SS67 | O6 | Fore River, Quincy | 12/1916 | 25/11/1917 | 6/1918 | stricken 9/1945 |
| SS68 | O7 | Fore River, Quincy | 2/1917 | 16/12/1917 | 7/1918 | stricken 7/1945 |
| SS69 | O8 | Fore River, Quincy | 2/1917 | 21/12/1917 | 7/1918 | stricken 10/1945 |
| SS70 | O9 | Fore River, Quincy | 2/1917 | 27/1/1918 | 7/1918 | foundered 20/6/1941 |
| SS71 | O10 | Fore River, Quincy | 2/1917 | 21/2/1918 | 8/1918 | stricken 10/1945 |
| SS72 | O11 | Lake, Bridgeport | 3/1916 | 29/10/1917 | 10/1918 | stricken 5/1930 |
| SS73 | O12 | Lake, Bridgeport | 3/1916 | 29/9/1917 | 10/1918 | stricken 5/1930 |
| SS74 | O13 | Lake, Bridgeport | 3/1916 | 27/12/1917 | 11/1918 | stricken 5/1930 |
| SS75 | O14 | California SB, Long Beach | 7/1916 | 6/5/1918 | 10/1918 | stricken 5/1930 |
| SS76 | O15 | California SB, Long Beach | 9/1916 | 12/2/1918 | 8/1918 | stricken 5/1930 |
| SS77 | O16 | California SB, Long Beach | 10/1916 | 9/2/1918 | 8/1918 | stricken 5/1930 |
|
Displacement standard, t |
|
|
Displacement normal, t |
SS62 - 71: 521 / 629 SS72 - 77: 491 / 566 |
|
Length, m |
SS62 - 71: 52.5 SS72 - 77: 52.4 |
|
Breadth, m |
SS62 - 71: 5.50 SS72 - 77: 5.10 |
|
Draught, m |
SS62 - 71: 4.40 SS72 - 77: 4.20 |
|
No of shafts |
2 |
|
Machinery |
SS62 - 71: 2 NLSE diesels / 2 electric motors SS72 - 77: 2 Busch-Sulzer diesels / 2 electric motors |
|
Power, h. p. |
SS62 - 71: 600 / 550 SS72 - 77: 880 / 740 |
|
Max speed, kts |
SS62 - 71: 13 / 11 SS72 - 77: 14 / 10.5 |
|
Fuel, t |
diesel oil 88 |
| Endurance, nm (kts) | 5500 (11.5) / |
|
Armament |
4 - 450 TT (bow, 8), 1 x 1 - 76/23 Mk 9 |
|
Complement |
SS62 - 71: 25 SS72 - 77: 29 |
|
Diving depth operational, m |
60 |
Ship project history: Efficient submarine project, completed after long experiments with many types. Development of N class. There were two subgroups: 10 submarines of first ones were built under project of Holland (O1-10), 6 submarines of the second (Î11-16) under Lake project. Latter appeared unsuccessful and in the early thirties are handed over on demolition. Saddle-tank hull.
Modernizations: 1939, most survived: - 1 x 1 - 76/23; + 1 x 1 - 12.7/90.Naval service: Submarines of this class were used basically for training. O5 was rammed and sunk by s/s Abangarez near Lemon Bay (Panama Canal Zone) 28/10/1923. O9 foundered by mechanical failure 20/6/1941 in 15nm off Portsmouth.
O10
© Ivan Gogin, 2008-10