German submarine U-4712
Postwar photo of Hecht (S 171), (former Type XXIII submarine U-2367). An identical sister ship of U-4712.
|Ordered:||7 July 1944|
|Builder:||Friedrich Krupp Germaniawerft AG, Kiel|
|Laid down:||3 January 1945|
|Launched:||1 March 1945|
|Commissioned:||3 April 1945|
|Fate:||Scuttled on 3 May 1945|
|General characteristics (XXIII)|
|Draught:||3.66 m (12 ft)|
|Test depth:||180 m (590 ft)|
German submarine U-4712 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 7 July 1944, and was laid down on 3 January 1945 at Friedrich Krupp Germaniawerft AG, Kiel, as yard number 954. She was launched on 1 March 1945 and commissioned under the command of Oberleutnant zur See Karl-Heinz Rohlfing on 3 April 1945.
Like all Type XXIII U-boats, U-4712 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 of 3.66 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-4712 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. This class of U-boat did not carry a deck gun.
- Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
- Williamson, Gordon (2005). Wolf Pack: The Story of the U-boat in World War II. Osprey. ISBN 1841768723.
- Helgason, Guðmundur. "U-4712". Uboat.net. Retrieved 30 April 2016.