German submarine U-667
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German submarine ''U-667'' was a
Type VIIC Type VII U-boats were the most common type of German World War II U-boat. 703 boats were built by the end of the war. The lone surviving example, , is on display at the Laboe Naval Memorial located in Laboe, Schleswig-Holstein, Germany. Conc ...
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 role ...
built for
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 The (, ) was the navy of Germany from 1935 to 1945. It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war (1919–1935) of the Weimar Republic. The was one of three official branches, along with the a ...
'' for service during
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 opposin ...
. She was
laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one o ...
on 16 August 1941 by
Deutsche Werft Deutsche Werft (English: German Shipyard) was a shipbuilding company in Finkenwerder Rüschpark, Hamburg, Germany. It was founded in 1918 by Albert Ballin and with Gutehoffnungshütte (GHH), ''Allgemeine Elektricitäts-Gesellschaft'' ( AEG) and ' ...
,
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
as yard number 816, launched on 29 August 1942 and commissioned on 21 October 1942 under ''
Oberleutnant zur See ''Oberleutnant zur See'' (''OLt zS'' or ''OLZS'' in the German Navy, ''Oblt.z.S.'' in the ''Kriegsmarine'') is traditionally the highest rank of Lieutenant in the German Navy. It is grouped as OF-1 in NATO. The rank was introduced in the Imper ...
'' Heinrich Schroeteler.


Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-667'' had a displacement of when at the surface and while submerged. She 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 Germaniawerft F46 four-stroke, six-cylinder
supercharged In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induct ...
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-call ...
s producing a total of for use while surfaced, two Siemens-Schuckert GU 343/38-8 double-acting electric motors producing a total of for use while submerged. She had two shafts and two
propeller A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon ...
s. 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-667'' was fitted with five
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 (four fitted at the bow and one at the stern), fourteen
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, su ...
es, one SK C/35 naval gun, 220 rounds, and two twin C/30
anti-aircraft gun 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, ...
s. The boat had a complement of between forty-four and sixty.


Service history

The boat's career began with training at
5th U-boat Flotilla The 5th U-boat Flotilla (German ''5. Unterseebootsflottille''), also known as Emsmann Flotilla, was a U-boat flotilla of Nazi Germany's ''Kriegsmarine'' during World War II. The flotilla was formed in December 1938 in Kiel under the command of '' ...
on 21 October 1942, followed by active service on 1 June 1943 as part of the 7th Flotilla for the remainder of her service. In five patrols she sank one merchant ship, for a total of and 2 warships. She also cause one warship total loss.


Wolfpacks

''U-667'' took part in five wolfpacks, namely: * Coronel (4 – 8 December 1943) * Coronel 2 (8 – 14 December 1943) * Coronel 3 (14 – 17 December 1943) *
Borkum Borkum ( nds, Borkum, Börkum) is an island and a municipality in the Leer District in Lower Saxony, northwestern Germany. It is situated east of Rottumeroog and west of Juist. Geography Borkum is bordered to the west by the Westerems strait ...
(18 – 26 December 1943) * Preussen (13 – 22 March 1944)


Fate

''U-667'' sunk on 26 August 1944 in the
Bay of Biscay The Bay of Biscay (), known in Spain as the Gulf of Biscay ( es, Golfo de Vizcaya, eu, Bizkaiko Golkoa), and in France and some border regions as the Gulf of Gascony (french: Golfe de Gascogne, oc, Golf de Gasconha, br, Pleg-mor Gwaskogn), ...
in position , when she struck a mine. All hands were lost.


Summary of raiding history


References


Notes


Citations


Bibliography

* * * *


External links

* {{DEFAULTSORT:U0667 German Type VIIC submarines 1942 ships U-boats commissioned in 1942 Ships lost with all hands U-boats sunk in 1944 U-boats sunk by depth charges U-boats sunk by mines World War II shipwrecks in the Atlantic Ocean World War II submarines of Germany Ships built in Hamburg Maritime incidents in August 1944