Oceangoing long-range high-speed combat U-boat type of conventional design developed in 1939–40, 1943–44 main propulsion unit removed and converted into transport U-boats
| Surface/submerged displacement: | 1610/1799 t |
| Overall length/beam/draught: | 87.58 m/7.50 m/5.35 m |
| Standard main armament: | 6 torpedo tubes (4 bow, 2 stern) with up to 25 torpedoes, tubes removed during conversion 1943-44 |