German submarine ''Wilhelm Bauer'' (originally designated ''U-2540'') is a Type XXI

U-boat U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare ro ...

Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...

's navy ('' Kriegsmarine''), completed shortly before the end of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

. It was scuttled at the end of the war, having never gone on patrol. In 1957, it was raised from the seabed off Flensburg Firth, refurbished, and recommissioned for use by the West-German

Bundesmarine The German Navy (, ) is the navy of Germany and part of the unified ''Bundeswehr'' (Federal Defense), the German Armed Forces. The German Navy was originally known as the ''Bundesmarine'' (Federal Navy) from 1956 to 1995, when ''Deutsche Mari ...

in 1960. Finally retired fully in 1983, it is the only floating example of a Type XXI U-boat. It has been modified to appear in wartime configuration and exhibited at the German Maritime Museum in

Bremerhaven Bremerhaven (, , Low German: ''Bremerhoben'') is a city at the seaport of the Free Hanseatic City of Bremen, a state of the Federal Republic of Germany. It forms a semi-enclave in the state of Lower Saxony and is located at the mouth of the Riv ...

, Germany.

Design

Like all Type XXI

s, ''U-2540'' had a displacement of when at the surface and while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two

MAN SE MAN SE (abbreviation of ''Maschinenfabrik Augsburg-Nürnberg'', ) was a manufacturing and engineering company based in Munich, Germany. Its primary output was commercial vehicles and diesel engines through its MAN Truck & Bus and MAN Latin Ame ...

supercharged six-cylinder M6V40/46KBB diesel engines each providing , two

Siemens-Schuckert Siemens-Schuckert (or Siemens-Schuckertwerke) was a German electrical engineering company headquartered in Berlin, Erlangen and Nuremberg that was incorporated into the Siemens AG in 1966. Siemens Schuckert was founded in 1903 when Siemens & H ...

GU365/30 double-acting electric motors each providing , and two Siemens-Schuckert silent running GV232/28 electric motors each providing . The submarine had a maximum surface speed of and a submerged speed of . When running on silent motors the boat could operate at a speed of . When submerged, the boat could operate at for ; when surfaced, she could travel at . ''U-2540'' was fitted with six

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s in the bow and four C/30

anti-aircraft guns Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...

. She could carry twenty-three

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, s ...

es or seventeen torpedoes and twelve mines. The

complement A complement is something that completes something else. Complement may refer specifically to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-clas ...

was five officers and fifty-two men.

Construction and wartime service

Construction of ''U-2540'' began on 28 October 1944 by Blohm & Voss in Hamburg-Finkenwerder. She was launched on 13 January 1945 and commissioned on 24 February 1945 as part of the

31st U-boat Flotilla ''31st U-boat Flotilla'' ("31. Unterseebootsflottille") was a training flotilla ("''Ausbildungsflottille''") of Nazi Germany's ''Kriegsmarine'' during World War II. The flotilla was formed in Hamburg in September 1943 under the command of '' Kap ...

for training purposes. In April 1945 the boat went to the front after training at

Rønne Rønne ( sv, Rönne) is the largest town on the Danish island of Bornholm in the Baltic Sea. It has a population of 13,807 (1 January 2022). It was a municipality in its own right from 1970 until 2002, when Bornholm was a county ( Danish: ''Born ...

on Bornholm. Due to the ongoing fuel shortages at the end of the war, the boat was relocated to Swinemünde before being scuttled near the Flensburg lightship on 4 May 1945.

Salvage, refit and new service

In June 1957, after more than 12 years on the floor of the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and ...

, ''U-2540'' was raised and overhauled at Howaldtswerke,

Kiel Kiel () is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 246,243 (2021). Kiel lies approximately north of Hamburg. Due to its geographic location in the southeast of the Jutland ...

. The submarine was commissioned as a

research vessel A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated ...

in the ''

'', serving from 1 September 1960 until 28 August 1968 as a test boat (class 241). On relaunch she was renamed ''

Wilhelm Bauer Wilhelm Bauer (23 December 1822 – 20 June 1875) was a German inventor and engineer who built several hand-powered submarines. Biography Wilhelm Bauer was born in Dillingen in the Kingdom of Bavaria. His father was a sergeant of a Bavarian ...

'', after the designer of the first German U-boat, ''

Brandtaucher ''Brandtaucher'' ( German for ''Fire-diver'') was a submersible designed by the Bavarian inventor and engineer Wilhelm Bauer and built by Schweffel & Howaldt in Kiel for Schleswig-Holstein's Flotilla (part of the ''Reichsflotte'') in 1850. ...

'', built in

by August Howaldt in 1850. From May 1970 she again entered service, this time with a civilian crew and served as a testbed for the technical innovations of the class 206 U-boat. After an underwater collision with the on 6 May 1980 ''Wilhelm Bauer'' was discharged from use at Eckernförde on 18 November 1980 and finally released from service in 1983.

Conversion to museum ship

''U-2540'' was put on sale by the Ministry of Defence and acquired by the board of trustees of the German Maritime Museum Association and the German Maritime Museum in Bremerhaven. The boat was restored to its original World War II configuration after its transfer in August 1983 to the Seebeck yard, opening on 27 April 1984 as a museum ship in

, now sponsored by the Wilhelm Bauer Technology Museum association. It has imitation twin 30mm cannon and the bridge is not glazed as it was during service with the ''Bundesmarine.''

In popular culture

''Whilhem Bauer'' was featured in an episode of the documentary series Nazi Megastructures in 2016, with an episode entitled "Hitler's Killer Subs", which included the history of the design and construction of the Type XXI submarine.

Gallery

File:Bugtorpedorohre U-Boot Wilhelm Bauer.jpg, The four bow torpedo tubes on the submarine (Class 241) File:U boat wilhelm bauer.JPG, ''Wilhelm Bauer'' in Bremerhaven (2002) File:BremerhavenUWilhelm BauerExU2540.jpg, With fresh paint in 2011 File:Wilhelmbauer.jpg, ''Wilhelm Bauer'', panoramic view

Other surviving U-boats

* ''SM U-1'' * * *

References

Bibliography

* * *

External links

*
A tour of the submarine
(requires QuickTime VR software)

Essay with numerous photos of the ''Wilhelm Bauer'' attached. * {{DEFAULTSORT:Wilhelm Bauer Type XXI submarines U-boats commissioned in 1945 U-boats scuttled in 1945 Museum ships in Germany 1945 ships Bremerhaven World War II submarines of Germany Ships built in Hamburg Maritime incidents in May 1945