Project 641B Som
Project 641B
| Type |
SS |
| Soviet designation |
PL |
| NATO reporting name |
Tango |
| Country |
USSR |
| Displacement (t) |
3,546 |
| Length (m) |
90.2 |
| Beam (m) |
8.6 |
| Draft (m) |
5.7 |
| Height (m) |
8.6 |
| Max speed submerged (kn) |
15.5 |
| Max speed surfaced (kn) |
14.0 |
| Max safe depth (m) |
240 |
| Endurance (days) |
80 |
| Diesel-electric |
Yes |
| Titanium hull |
No |
| Class year |
1973 |
Individual hulls (18)
| Name |
Short name |
Country |
Commissioned |
Decommissioned |
Remark |
| B-146 |
B-146 |
USSR |
1978-09-30 |
1998-03-16 |
|
| B-215 |
B-215 |
USSR |
1979-12-30 |
1997-07-17 |
|
| B-225 |
B-225 |
USSR |
1981-12-25 |
1998-03-16 |
|
| B-290 |
B-290 |
USSR |
1977-09-25 |
1995-08-04 |
|
| B-30 |
B-30 |
USSR |
1979-09-28 |
2001-05-05 |
|
| B-303 |
B-303 |
USSR |
1977-12-30 |
1995-08-04 |
|
| B-307 |
B-307 |
USSR |
1980-12-30 |
2001-05-03 |
|
| B-312 |
B-312 |
USSR |
1982-09-20 |
1998-03-16 |
|
| B-319 |
B-319 |
USSR |
1981-09-25 |
1998-03-16 |
|
| B-380 |
B-380 |
USSR |
1982-12-26 |
2016-08-04 |
|
| B-396 |
B-396 |
USSR |
1980-09-30 |
1998-03-16 |
|
| B-437 |
B-437 |
USSR |
1975-09-30 |
2001-05-03 |
|
| B-443 |
B-443 |
USSR |
1973-12-31 |
1995-08-04 |
|
| B-474 |
B-474 |
USSR |
1974-12-31 |
1995-08-04 |
|
| B-498 |
B-498 |
USSR |
1975-12-31 |
1995-08-04 |
|
| B-515 |
B-515 |
USSR |
1976-12-29 |
2002-04-10 |
|
| B-519 |
B-519 |
USSR |
1976-12-22 |
1995-08-04 |
|
| B-546 |
B-546 |
USSR |
1978-12-29 |
2002-05-03 |
|