Seagoing combat/torpedo supply U-boat type of conventional design developed in 1941
| Surface/submerged displacement: | 1084/1181 t |
| Overall length/beam/draught: | 77.63 m/7.30 m/4.91 m |
| Standard main armament: | 5 torpedo tubes (4 bow, 1 stern) with up to 14 torpedoes, up to 25 spare torpedoes in a stowage room for supply mission |