Project 659T
| Type |
SSN |
| Soviet designation |
PLARK |
| NATO reporting name |
Echo I (mod) |
| 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) |
25.0 |
| Max speed surfaced (kn) |
20.0 |
| Max safe depth (m) |
241 |
| Endurance (days) |
50 |
| Nuclear reactors |
2 |
| Titanium hull |
No |
| Class year |
1969 |
Individual hulls (5)
| Name |
Short name |
Country |
Commissioned |
Decommissioned |
Remark |
| K-122 |
K-122 |
USSR |
1973-04-12 |
1985-06-20 |
|
| K-151 |
K-151 |
USSR |
1974-05-20 |
1989-11-05 |
|
| K-45 |
K-45 |
USSR |
1970-03-05 |
1989-12-20 |
|
| K-59 |
K-59 |
USSR |
1971-04-20 |
1989-11-15 |
|
| K-66 |
K-66 |
USSR |
1972-05-15 |
1985-11-14 |
|