Postwar photo of Hecht (S 171), (former Type XXIII submarine U-2367). An identical sister ship of U-2340.
|Ordered||20 September 1943|
|Builder||Deutsche Werft AG, Hamburg|
|Laid down||18 August 1944|
|Launched||28 September 1944|
|Commissioned||16 October 1944|
|Fate||Sunk 30 March 1945|
|General characteristics (XXIII)|
|Draught||3.66 m (12 ft)|
|Test depth||180 m (590 ft)|
German submarine U-2340 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 20 September 1943, and was laid down on 18 August 1944 at Deutsche Werft AG, Hamburg, as yard number 494. She was launched on 28 September 1944 and commissioned under the command of Oberleutnant zur See Emil Klusmeier on 16 October 1944.
Like all Type XXIII U-boats, U-2340 had a displacement of 234 tonnes (230 long tons) when at the surface and 258 tonnes (254 long tons) while submerged. She had a total length of 34.68 m (113 ft 9 in) (o/a), a beam width of 3.02 m (9 ft 11 in) (o/a), and a draught depth of3.66 m (12 ft). The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575–630 metric horsepower (423–463 kilowatts; 567–621 shaft horsepower), one AEG GU4463-8 double-acting electric motor electric motor providing 580 PS (430 kW; 570 shp), and one BBC silent running CCR188 electric motor providing 35 PS (26 kW; 35 shp).
The submarine had a maximum surface speed of 9.7 knots (18.0 km/h; 11.2 mph) and a submerged speed of 12.5 knots (23.2 km/h; 14.4 mph). When submerged, the boat could operate at 4 knots (7.4 km/h; 4.6 mph) for 194 nautical miles (359 km; 223 mi); when surfaced, she could travel 2,600 nautical miles (4,800 km; 3,000 mi) at 8 knots (15 km/h; 9.2 mph). U-2340 was fitted with two 53.3 cm (21.0 in) torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14 – 18 men. This class of U-boat did not carry a deck gun.
On 30 March 1945, U-2340 was sunk by British bombs at Hamburg. The wreck was later raised and broken up.