Type IXD
| General characteristics (IXD) | |
|---|---|
| Displacement: | 1,610 t (1,580 long tons) surfaced 1,799 t (1,771 long tons) submerged |
| Length: | 87.6 m (287 ft 5 in) overall 68.5 m (224 ft 9 in) pressure hull |
| Beam: | 7.5 m (24 ft 7 in) overall 4.4 m (14 ft 5 in) pressure hull |
| Height: | 10.2 m (33 ft 6 in) |
| Draft: | 5.4 m (17 ft 9 in) |
| Speed: | 20.8 knots (38.5 km/h) surfaced 6.9 knots (12.8 km/h) submerged |
| Range: | 9,900 nmi (18,300 km) at 10 knots (19 km/h) surfaced 57 nmi (106 km) at 4 kn (7.4 km/h) submerged |
Type IXD was significantly longer and heavier than the IXC/40. It was faster than the IXC but at the cost of slightly reduced range. They had three pairs of Daimler Benz diesels: two pairs for cruise and one for high speed or battery recharge. There were three variants: the IXD1, IXD2 and IXD/42. The IXD1 had unreliable engines and they were converted to transports. The IXD2 comprised most of the class and had a range of over 23,700 miles. The IXD/42, was almost identical but with more engine power (5,400 ehp instead of 4,400).
In 1943 and 1944 the torpedo tubes were removed from a number of IXD boats converted for transport use. In their new role they could transport 252 tonnes of cargo.
Read more about this topic: German Type IX Submarine
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