German submarine ''U-336'' 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 ...

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 It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war (1919–1935) of the Weimar Republic.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 ...

'' 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 ...

. The submarine 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 28 March 1941 at the Nordseewerke yard at

Emden Emden () is an independent city and seaport in Lower Saxony in the northwest of Germany, on the river Ems. It is the main city of the region of East Frisia and, in 2011, had a total population of 51,528. History The exact founding date of E ...

as yard number 208, launched on 4 December and commissioned on 14 February 1942 under the command of ''

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 and ...

'' Hans Hunger.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-336'' 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

AEG Allgemeine Elektricitäts-Gesellschaft AG (AEG; ) was a German producer of electrical equipment founded in Berlin as the ''Deutsche Edison-Gesellschaft für angewandte Elektricität'' in 1883 by Emil Rathenau. During the Second World War, AEG ...

GU 460/8–27 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-336'' 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 a C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.

Service history

After training with the

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 '' ...

, she moved to the

1st flotilla The First Flotilla was a naval formation of the British Royal Navy commanded by the Flag Officer, First Flotilla from 1971 to 1990. The Western Fleet and Far East Fleet were merged into the single Commander-in-Chief Fleet in 1971. Within this new ...

for front-line service in December 1942. The boat carried out five patrols, sinking one ship. She was a member of ten wolfpacks.

First patrol

The boat's first patrol was very brief; starting and finishing in

Kiel Kiel () is the capital and most populous city in the northern Germany, 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 J ...

on 12 and 13 November 1942.

Second patrol

Her second foray also started in Kiel, but terminated in

Brest Brest may refer to: Places *Brest, Belarus **Brest Region **Brest Airport **Brest Fortress *Brest, Kyustendil Province, Bulgaria *Břest, Czech Republic *Brest, France **Arrondissement of Brest **Brest Bretagne Airport ** Château de Brest *Brest, ...

in occupied France after passing between the Faroe and

Shetland Islands Shetland, also called the Shetland Islands and formerly Zetland, is a subarctic archipelago in Scotland lying between Orkney, the Faroe Islands and Norway. It is the northernmost region of the United Kingdom. The islands lie about to the no ...

. She sank the Belgian tanker ''President Francqui'' on 29 December 1942 north of the

Azores ) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores wi ...

. The ship had already been hit by two

es. ''U-336'' finished her off with a 'coup de grâce'.

Third patrol

The submarine's third sortie was again into the mid-Atlantic. She spent days scouring the empty wastes, but returned to Brest without success.

Fourth patrol

''U-336'' fourth patrol was, at 71 days, her longest. She was attacked by an unidentified aircraft on 10 July 1943 west of

Lisbon Lisbon (; pt, Lisboa ) is the capital and largest city of Portugal, with an estimated population of 544,851 within its administrative limits in an area of 100.05 km2. Grande Lisboa, Lisbon's urban area extends beyond the city's administr ...

. Slight damage was the result.

Fifth patrol

''U-336'' left Brest for the last time on 14 September 1943. Initially she headed west, out of 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), ...

. On the 24th, she turned north.

Fate

On 5 October, she was sunk by rockets fired by a British Lockheed Hudson of No. 269 Squadron RAF in the Denmark Strait, (between

Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is t ...

and Iceland). Fifty men died; there were no survivors.

Wolfpacks

''U-336'' took part in ten wolfpacks, namely: * Ungestüm (11 – 30 December 1942) * Neuland (8 – 13 March 1943) * Dränger (14 – 20 March 1943) * Seewolf (21 – 30 March 1943) * Oder (17 – 19 May 1943) * Mosel (19 – 24 May 1943) * Trutz (1 – 16 June 1943) * Trutz 2 (16 – 29 June 1943) * Geier 3 (30 June – 10 July 1943) * Rossbach (24 September – 5 October 1943)

Summary of raiding history

References

Bibliography

* * * *

External links

* * {{DEFAULTSORT:U0336 German Type VIIC submarines U-boats commissioned in 1942 U-boats sunk in 1943 World War II submarines of Germany World War II shipwrecks in the Atlantic Ocean U-boats sunk by British aircraft 1942 ships Ships built in Emden Submarines lost with all hands Maritime incidents in December 1942