Project 659
| Type |
SSGN |
| Soviet designation |
PLARK |
| NATO reporting name |
Echo I |
| Country |
USSR |
| Displacement (t) |
5,500 |
| Length (m) |
111.2 |
| Beam (m) |
9.2 |
| Draft (m) |
7.1 |
| Height (m) |
9.2 |
| Max speed submerged (kn) |
24.1 |
| Max speed surfaced (kn) |
15.1 |
| Max safe depth (m) |
241 |
| Endurance (days) |
50 |
| Nuclear reactors |
2 |
| Titanium hull |
No |
| Class year |
1961 |
Individual hulls (5)
| Name |
Short name |
Country |
Commissioned |
Decommissioned |
Remark |
| K-122 |
K-122 |
USSR |
1962-07-06 |
1972-04-12 |
|
| K-151 |
K-151 |
USSR |
1963-07-28 |
1973-05-10 |
|
| K-45 |
K-45 |
USSR |
1961-06-28 |
1969-03-05 |
|
| K-59 |
K-59 |
USSR |
1961-12-16 |
1970-04-20 |
|
| K-66 |
K-66 |
USSR |
1961-12-28 |
1971-05-15 |
|