| Name | No | Builder | Laid down | Launched | Comp | Fate |
| 돌고래 051 [Tolgorae 051] | 051 | Hyundai, Ulsan | 2.4.1983 | 1.3.1985 | stricken 12.2003 | |
| 돌고래 052 [Tolgorae 052] | 052 | Hyundai, Ulsan | 15.12.1989 | 8.11.1990 | stricken 6.2016 | |
| 돌고래 053 [Tolgorae 053 | 053 | Hyundai, Ulsan | 30.8.1991 | 12.12.1991 | stricken 6.2016 |
|
Displacement standard, t |
|
|
Displacement normal, t |
150 / 175 |
|
Length, m |
|
|
Breadth, m |
|
|
Draught, m |
|
|
No of shafts |
1 |
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Machinery |
1 diesel-generator, 1 electric motor |
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Power, h. p. |
|
|
Max speed, kts |
9 / 6 |
|
Fuel, t |
diesel oil |
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Endurance, nm(kts) |
|
|
Armament |
2 - 533 TT (bow, 2) |
|
Electronic equipment |
STN Atlas sonar suite |
|
Complement |
6 + 8 combat swimmers |
| Diving depth operational, m | 100? |
Project history: Reportedly the first was delivered in 1983, the second in 1988. May not be assigned to the ROKN proper. Photos show a broad hull, a bulbous bow sonar installation, and a small sail incorporating a folding snorkel mast. There is a single periscope. Are supported by the tender Dadohae (ASL 50).
Modernizations: None.
Naval service: No significant events.
1985
© Ivan Gogin, 2018-19