German submarine U-2337

Postwar photo of Hecht (S 171), (former Type XXIII submarine U-2367). A sister ship of U-2337 (This picture of Hecht does not reflect its wartime configuration as it was rebuilt Postwar).
History
Nazi Germany
Name	U-2337
Ordered	20 September 1943
Builder	Deutsche Werft, Hamburg
Yard number	491
Laid down	2 August 1944
Launched	15 September 1944
Commissioned	4 October 1944
Fate	Surrendered on 9 May 1945 Sunk on 28 November 1945 during Operation Deadlight
General characteristics
Class and type	Type XXIII submarine
Displacement	234 t (230 long tons) (surfaced) 258 t (254 long tons) (submerged)
Length	34.68 m (113 ft 9 in) (o/a) 26.00 m (85 ft 4 in) (p/h)
Beam	3.02 m (9 ft 11 in) (o/a) 3.00 m (9 ft 10 in) (p/h)
Draught	3.66 m (12 ft)
Installed power	575–630 PS (423–463 kW; 567–621 shp) (diesel drive) 580 PS (430 kW; 570 shp) (standard electric drive) 35 PS (26 kW; 35 shp) (silent electric drive)
Propulsion	1 × MWM RS134S 6-cylinder diesel engine 1 × AEG GU4463-8 double-acting electric motor 1 × BBC CCR188 electric creeping motor
Speed	9.7 knots (18 km/h; 11 mph) (surfaced) 12.5 knots (23 km/h; 14 mph) (submerged)
Range	2,600 nautical miles (4,800 km; 3,000 mi) at 8 knots (15 km/h; 9.2 mph) surfaced 194 nmi (359 km; 223 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth	180 m (590 ft)
Complement	14–18
Armament	2 × bow torpedo tubes 2 × 53.3 cm (21 in) torpedoes
Service record
Part of:	32nd U-boat Flotilla 4 October 1944 – 8 May 1945
Identification codes:	M 44 676
Commanders:	Oblt.z.S. Günter Behnisch[1] 4 October 1944 – 9 May 1945
Operations:	None
Victories:	None

German submarine U-2337 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 2 August 1944 at Deutsche Werft, Hamburg, as yard number 491. She was launched on 15 September 1944 and commissioned under the command of Oberleutnant zur See Günter Behnisch on 4 October 1944.^[2][3]

Like all Type XXIII U-boats, U-2337 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).^[4]

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-2337 was fitted with two 53.3 cm (21 in) torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14 – 18 men.^[4] This class of U-boat did not carry a deck gun.^[2]

On 9 May 1945, U-2337 surrendered at Kristiansand, Norway. She was later transferred to Loch Ryan, Scotland on 29 May 1945. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-2337 was one of 116 selected to take part in Operation Deadlight. U-2337 was towed out to be sank on 28 November 1945, by gunfire from the British destroyer HMS Onslow and the Polish destroyer ORP Piorun.^[2]

The wreck now lies at 56°10′N 10°05′W / 56.167°N 10.083°W / 56.167; -10.083.^[2]

• Battle of the Atlantic

• Helgason, Guðmundur. "U-2337". Uboat.net. Retrieved 28 April 2016.