Project 651K
| Type | SSG |
|---|---|
| Soviet designation | PLRK |
| NATO reporting name | Juliett (mod) |
| Country | USSR |
| Displacement (t) | 4,240 |
| Length (m) | 85.9 |
| Beam (m) | 9.7 |
| Draft (m) | 6.9 |
| Height (m) | 15.0 |
| Max speed submerged (kn) | 14.5 |
| Max speed surfaced (kn) | 16.0 |
| Max safe depth (m) | 236 |
| Endurance (days) | 90 |
| Diesel-electric | Yes |
| Titanium hull | No |
| Class year | 1963 |
Individual hulls (1)
| Name | Short name | Country | Commissioned | Decommissioned | Remark |
|---|---|---|---|---|---|
| K-81 | K-81 | USSR | 1970-12-21 | 1990-04-19 |