Type 205 submarine

The Type 205 was a class of diesel-electric
Diesel-electric transmission or diesel-electric powertrain is used by a number of vehicle and ship types for providing locomotion.A diesel-electric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric traction motors...

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 hunter-killer U-boat
U-boat is the anglicized version of the German word U-Boot , itself an abbreviation of Unterseeboot , and refers to military submarines operated by Germany, particularly in World War I and World War II...

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

s. They were single-hull vessels optimized for the use in the shallow Baltic Sea
Baltic Sea
The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

. The Type 205 is a direct evolution of the Type 201
Type 201 submarine
The Type 201 was Germany's first class of military submarines built after World War II. They were built out of amagnetic steel to counter the threat of magnetic naval mines...

 class with lengthened hull, new machinery and sensors. The biggest difference though is that ST-52 steel is used for the pressure hull since the Type 201's non-magnetic steel proved to be problematic. Type 206
Type 206 submarine
The Type 206 is a class of diesel-electric submarines developed by Howaldtswerke-Deutsche Werft . Its design is based on the preceding Type 205 submarine class. These small and agile submarines were built during the Cold War to operate in the shallow Baltic Sea and attack Warsaw Pact shipping if...

, the follow-on class, finally succeeded with non-magnetic steel hulls.

The Type 205 was in service with the Royal Danish Navy
Royal Danish Navy
The Royal Danish Navy is the sea-based branch of the Danish Defence force. The RDN is mainly responsible for maritime defence and maintaining the sovereignty of Danish, Greenlandic and Faroese territorial waters...

 until 2004, in which it was known as Narhvalen class. The Danish boats differed slightly from the German ones to meet special Danish demands.

List of boats

Submarines built for the Bundesmarine:
Pennant number
In the modern Royal Navy, and other navies of Europe and the Commonwealth, ships are identified by pennant numbers...

Name Call
Call sign
In broadcasting and radio communications, a call sign is a unique designation for a transmitting station. In North America they are used as names for broadcasting stations...

Launched Com-
S180 June 6, 1967 November 29, 1991 scrapped
S181 October 11, 1966 March 19, 1993 scrapped
S183 November 19, 1962 August 1, 1974 scrapped
S184 July 4, 1963 May 17, 1974 scrapped
S185 July 4, 1963 August 22, 1974 scrapped
S186 March 16, 1964 September 30, 1965 scrapped
S187 July 22, 1964 October 9, 1974 scrapped
S188 April 11, 1967 June 3, 1993 Museum ship, Technikmuseum Speyer
S189 November 28, 1967 February 16, 1993 Museum ship, Wilhelmshaven
Wilhelmshaven is a coastal town in Lower Saxony, Germany. It is situated on the western side of the Jade Bight, a bay of the North Sea.-History:...

S190 DRDF June 21, 1968 October 30, 2003 Museum ship, Burgstaaken, Fehmarn
Fehmarn is an island and - since 2003 - a town on this island in the Baltic Sea, off the eastern coast of Schleswig-Holstein, Germany, and ca. 18 kilometers south of the Danish island of Lolland...

S191 DRDE January 14, 1969 June 21, 2005
Submarines built for the Kongelige Dansk Marine
Royal Danish Navy
The Royal Danish Navy is the sea-based branch of the Danish Defence force. The RDN is mainly responsible for maritime defence and maintaining the sovereignty of Danish, Greenlandic and Faroese territorial waters...

S320 September 10, 1968 February 27, 1970 October 16, 2003 scrapped
S321 December 18, 1969 December 22, 1970 February 2, 2004 scrapped

These last two boats were built by the Howaldtswerke
Howaldtswerke-Deutsche Werft is a German shipbuilding company, headquartered in Kiel. In 2009 it was the largest shipyard in Germany and has more than 2,400 employees. It has been part of ThyssenKrupp Marine Systems owned by ThyssenKrupp, since 2005...

, in Denmark at The Naval Dockyard, Copenhagen
Copenhagen is the capital and largest city of Denmark, with an urban population of 1,199,224 and a metropolitan population of 1,930,260 . With the completion of the transnational Øresund Bridge in 2000, Copenhagen has become the centre of the increasingly integrating Øresund Region...


  • U-1 and U-2 were originally built as Type 201 submarines with pressure hulls made of non-magnetic steel, but were rebuilt as Type 205 with new pressure hulls out of normal steel after corrosion problems and small cracks were detected.
  • U-1 was given back to Nordseewerke
    Nordseewerke is a shipbuilding company located in Emden, Germany. The name Nordseewerke means "North Sea shipyard" in German. The shipyard employs some 1,400 people and is the second-largest plant in Emden, following Volkswagen...

     and was used to test an experimental closed-cycle diesel air-independent propulsion
    Air-independent propulsion
    Air-independent propulsion is a term that encompasses technologies which allow a submarine to operate without the need to surface or use a snorkel to access atmospheric oxygen. The term usually excludes the use of nuclear power, and describes augmenting or replacing the diesel-electric propulsion...

     system before being scrapped
  • U-11 was transformed to a Type 205A double-hulled boat (the outer hull filled with polystyrene
    Polystyrene ) also known as Thermocole, abbreviated following ISO Standard PS, is an aromatic polymer made from the monomer styrene, a liquid hydrocarbon that is manufactured from petroleum by the chemical industry...

    foam to make it unsinkable) and used as torpedo target
  • U-12 was used for sonar trials as Type 205B

External links

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