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| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate | 
|---|---|---|---|---|---|---|---|
| Delfinul (ex-Б-801 [B-801]) | 521 | 401 | Krasnoye Sormovo, Gorkiy, USSR | 6.4.1984 | 20.9.1985 | 29.9.1985 // 12.1986 | in service (2019) | 
| Displacement standard, t | 
  | 
                                                            
                                                                                                                
                                                
                
|---|---|
| Displacement normal, t | 2325 / 3075  | 
                                                            
                                                                                                                
                                                
                
| Length, m | 72.6  | 
                                                            
                                                                                                                
                                                
                
| Breadth, m | 9.90 hull 12.8 max  | 
                                                            
                                                                                                                
                                                
                
| Draught, m | 6.60  | 
                                                            
                                                                                                                
                                                
                
| No of shafts | 1  | 
                                                            
                                                                                                                
                                                
                
| Machinery | 2 4DL-42M diesel-generators, 1 PG-141 electric motor / 1 PG-142 electric motor for crouching  | 
                                                            
                                                                                                                
                                                
                
| Power, h. p. | 4080 / 5500 / 150  | 
                                                            
                                                                                                                
                                                
                
| Max speed, kts | 10.7 / 18  | 
                                                            
                                                                                                                
                                                
                
| Fuel, t | diesel oil  | 
                                                            
                                                                                                                
                                                
                
| Endurance, nm(kts) | 6880(7) / 400(3)  | 
                                                            
                                                                                                                
                                                
                
| Armament | 6 - 533 TT (bow, 18, or 24 mines), 1 x 8 Igla-1 SAM (8 9M313)  | 
                                                            
                                                                                                                
                                                
                
| Electronic equipment | MRK-50E Kaskad radar, MGK-400E Rubikon-E sonar suite, MG-519E Arfa-E, MG-512 Vint, MG-53, MG-553 Shkert sonars, MRP-25E ECM suite, MVU-110 Uzel CCS  | 
                                                            
                                                                                                                
                                                
                
| Complement | 60  | 
                                                            
                                                                                                                
                                                
                
| Diving depth operational, m | 240  | 
                                                            
                                                                                
            
                            Soviet project 877EKM submarine, built specially for export. Transfer of second submarine was cancelled for financial reasons.
None.
Reported non-operational since mid-1996 in need for major overhaul.

