German submarine ''U-11'' was a
Type IIB 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 ...
built before
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 ...
for service in
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 ''
Kriegsmarine''. She was
commissioned on 21 September 1935, with ''
Kapitänleutnant
''Kapitänleutnant'', short: KptLt/in lists: KL, ( en, captain lieutenant) is an officer grade of the captains' military hierarchy group () of the German Bundeswehr. The rank is rated OF-2 in NATO, and equivalent to Hauptmann in the Heer an ...
''
Hans-Rudolf Rösing
Hans-Rudolf Rösing (28 September 1905 – 16 December 2004) was a German U-boat commander in World War II and later served in the Bundesmarine of the Federal Republic of Germany. He was a recipient of the Knight's Cross of the Iron Cross, of Nazi ...
in command. She served in several training flotillas in her 10-year career, but sank or damaged no ships.
In 1940, ''U-11'' was the first unit to carry out
sea trial
A sea trial is the testing phase of a watercraft (including boats, ships, and submarines). It is also referred to as a " shakedown cruise" by many naval personnel. It is usually the last phase of construction and takes place on open water, and ...
s of a new
anechoic tile, which was developed by the ''Kriegsmarine'' for reducing a submarines' acoustic signature. This development project was
codenamed ''Alberich'' after
the invisible sorcerer from Germanic mythology.
Design
German Type IIB submarine
The Type II U-boat was designed by Nazi Germany as a coastal U-boat, modeled after the CV-707 submarine, which was designed by the Dutch dummy company NV Ingenieurskantoor voor Scheepsbouw Den Haag (I.v.S) (set up by Germany after World War I ...
s were enlarged versions of the original
Type IIs. ''U-11'' had a displacement of when at the surface and while submerged. Officially, the standard tonnage was , however. The U-boat had a total length of , a
pressure hull
A submarine hull has two major components, the ''light hull'' and the ''pressure hull''. The light hull (''casing'' in British usage) of a submarine is the outer non-watertight hull which provides a hydrodynamically efficient shape. The pressure ...
length of , a
beam
Beam may refer to:
Streams of particles or energy
*Light beam, or beam of light, a directional projection of light energy
**Laser beam
*Particle beam, a stream of charged or neutral particles
**Charged particle beam, a spatially localized grou ...
of , a height of , and a
draught of . The submarine was powered by two
MWM RS 127 S four-stroke, six-cylinder
diesel engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...
s of for cruising, 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 ...
PG VV 322/36
double-acting electric motors producing a total of for use while submerged. She had two shafts and two
propellers. The boat was capable of operating at depths of up to .
The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . ''U-11'' was fitted with three
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 at the bow, five
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 up to twelve Type A torpedo mines, and a
anti-aircraft gun. The boat had a
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 ...
of twentyfive.
Fate
The U-boat was scuttled on 3 May 1945 in
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 wreck was
broken up
Ship-breaking (also known as ship recycling, ship demolition, ship dismantling, or ship cracking) is a type of ship disposal involving the breaking up of ships for either a source of Interchangeable parts, parts, which can be sold for re-use, ...
.
References
Bibliography
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External links
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{{DEFAULTSORT:U0011
German Type II submarines
U-boats commissioned in 1935
World War II submarines of Germany
1935 ships
Ships built in Kiel
Operation Regenbogen (U-boat)