O4 1917
O8 1943
| No | Name | Yard No | 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 | 256 | Fore River, Quincy | 12.1916 | 29.9.1917 | 6.1918 | stricken 10.1945 |
| SS65 | O4 | 257 | Fore River, Quincy | 12.1916 | 20.10.1917 | 5.1918 | stricken 10.1945 |
| SS66 | O5 | 258 | Fore River, Quincy | 12.1916 | 11.11.1917 | 6.1918 | collision 28.10.1923 |
| SS67 | O6 | 259 | Fore River, Quincy | 12/1916 | 25.11.1917 | 6.1918 | stricken 9.1945 |
| SS68 | O7 | 260 | Fore River, Quincy | 2/1917 | 16.12.1917 | 7.1918 | stricken 7.1945 |
| SS69 | O8 | 261 | Fore River, Quincy | 2/1917 | 21.12.1917 | 7.1918 | stricken 10.1945 |
| SS70 | O9 | 262 | Fore River, Quincy | 2/1917 | 27.1.1918 | 7.1918 | foundered 20.6.1941 |
| SS71 | O10 | 263 | 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 | 124 | California SB, Long Beach | 7.1916 | 6.5.1918 | 10.1918 | stricken 5.1930 |
| SS76 | O15 | 125 | California SB, Long Beach | 9.1916 | 12.2.1918 | 8.1918 | stricken 5.1930 |
| SS77 | O16 | 126 | 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 |
1 x 1 - 76/23 Mk IX, 4 - 450 TT (bow, 8) |
| Electronic equipment | SC sonar |
|
Complement |
SS62 - 71: 25 SS72 - 77: 29 |
|
Diving depth operational, m |
60 |
Project history: Efficient submarine design, completed after long experiments with many classes. 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. Saddle-tank hull.
Modernizations: 1939-1940, most survived: - 1 x 1 - 76/23; + 1 x 1 - 12.7/90, JK sonar1940s, most survived: + SD or SJ radar
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, 2014