TCG GÜR (S-357) 
TCG ÇANAKKALE (S-358) 
TCG BURAKREİS (S-359) 
TCG I.İNÖNÜ (S-360) | Basic Specifications | |
| Lenght-Beam-Draught | 62 x 6,2 x 5,8 mt |
| Displacement Tonnage | Surfaced : 1454 t. Dived : 1586 t. |
| Propulsion | 4 MTU Diesels / 3800 HP / 1 Propeller |
| Speed | 11 kts Surfaced / 21 kts Dived |
| Range | Surfaced 8 kts / 7500 nm |
| Complement | 9 Officers - 31 Petty Officer - 2 Enlisted Specialist - 3 Enlisted |