Type 206 submarine
Encyclopedia
The Type 206 is a class of diesel-electric submarines (U-boat
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...

s) developed by Howaldtswerke-Deutsche Werft (HDW). Its design is based on the preceding Type 205 submarine
Type 205 submarine
The Type 205 was a class of diesel-electric German hunter-killer U-boat submarines. They were single-hull vessels optimized for the use in the shallow Baltic Sea. The Type 205 is a direct evolution of the Type 201 class with lengthened hull, new machinery and sensors...

 class. These small and agile submarines were built during the Cold War
Cold War
The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

 to operate 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...

 and attack Warsaw Pact
Warsaw Pact
The Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance , or more commonly referred to as the Warsaw Pact, was a mutual defense treaty subscribed to by eight communist states in Eastern Europe...

 shipping if the war turned hot. The pressure hulls were built out of non-magnetic steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 to counter the threat of magnetic naval mine
Naval mine
A naval mine is a self-contained explosive device placed in water to destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, an enemy vessel...

s and make detection with MAD
Magnetic anomaly detector
A magnetic anomaly detector is an instrument used to detect minute variations in the Earth's magnetic field. The term refers specifically to magnetometers used by military forces to detect submarines ; the military MAD gear is a descendent of geomagnetic survey instruments used to search for...

 sensors more difficult. The low emission profile allowed the submarines in exercises to intrude even into well protected opposing forces such as carrier formations with their screen.

Programme

Ten Type 205
Type 205 submarine
The Type 205 was a class of diesel-electric German hunter-killer U-boat submarines. They were single-hull vessels optimized for the use in the shallow Baltic Sea. The Type 205 is a direct evolution of the Type 201 class with lengthened hull, new machinery and sensors...

 submarines were constructed between 1962 and 1968 with hulls constructed of a new non-magnetic steel. The early boats, however, suffered from cracking due to stress corrosion and an urgent programme was initiated to develop a new steel which overcame these problems, which received much publicity at the time. The new high-strength, non-magnetic, austenitic steel has greater elasticity and good dynamic strength, and has proved very satisfactory in service, thoroughly overcoming the doubts that were raised by those early problems, although it has never been selected by IKL's many export customers and thus remains unique to German Navy submarines. Subsequently, the Type 206 was designed by IKL in 1964-65 and a production order was placed on 7 June 1969 for eight from HDW in Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...

 and ten from Nordseewerke
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...

 in Emden
Emden
Emden is a city and seaport in the northwest of Germany, on the river Ems. It is the main city of the region of East Frisia; in 2006, the city had a total population of 51,692.-History:...

.

Of the 18 submarines built for the Bundesmarine (West German Navy), 12 were modernized in the early 1990s and were re-designated as Type 206A; the others have been decommissioned. The current German Navy
German Navy
The German Navy is the navy of Germany and is part of the unified Bundeswehr .The German Navy traces its roots back to the Imperial Fleet of the revolutionary era of 1848 – 52 and more directly to the Prussian Navy, which later evolved into the Northern German Federal Navy...

 is starting to decommission some 206A vessels, with more of the new Type 212 submarine
Type 212 submarine
The German Type 212 class, also Italian Todaro class, is a highly advanced design of non-nuclear submarine developed by Howaldtswerke-Deutsche Werft AG and Fincantieri S.p.a. for the German and Italian Navy. It features diesel propulsion and an additional air-independent propulsion system using...

s being commissioned. In June 2010 the Ministry of Defence announced that all six remaining vessels were to be retired from active service immediately and to be decommissioned by the end of 2010 to cut costs.

A slightly modified variant of the Type 206 (which includes the distinctive dome, or bulge, in the front of the boat), the Gal-class submarine
Gal class submarine
The Type 540 Gal Class submarine is a slightly modified variant of the German HDW Type 206 submarine class , modified for Israeli requirements. The Gal class submarines were built to Israeli specifications as the Vickers shipyards Type 540 at Barrow in Furness in the UK rather than Germany for...

 for the Israeli Navy was built to Israeli specifications as the Vickers
Vickers Shipbuilding and Engineering Ltd
In 1994 VSEL was subject to two takeover proposals, one from GEC and another from British Aerospace . VSEL was willing to participate in a merger with a larger company to reduce its exposure to cycles in warship production, particularly following the "Options for Change" defence review after the...

 Type 540 in the UK
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 rather than Germany for political reasons. Three such boats were built, the first being commissioned in 1976. When the Israeli navy received its new Dolphin-class submarine
Dolphin class submarine
The Type 800 Dolphin class is a diesel-electric submarine developed and constructed by Howaldtswerke-Deutsche Werft AG , Germany for the Israeli Navy. It is based on the export-only German 209 class submarines, but modified and reduced and is thus not seen as a member of the 209 family...

s (also built by HDW), the Gals were retired. As of 2006, one had been scrapped and two had been sent to HDW in an attempt to find a buyer for them. When no buyer was found, one of the submarines was returned to Israel for display in the Haifa
Haifa
Haifa is the largest city in northern Israel, and the third-largest city in the country, with a population of over 268,000. Another 300,000 people live in towns directly adjacent to the city including the cities of the Krayot, as well as, Tirat Carmel, Daliyat al-Karmel and Nesher...

 naval museum.

Modernisation

A major mid-life modernisation was conducted on twelve of these submarines, the boats concerned now being officially designated Type 206A. The work started in mid-1987 and completed in February 1992, being carried out by Nordseewerke, Emden; this upgrade includes:

The STN Atlas DBQS-21D sonar has been fitted, together with new periscopes, and a new weapon control system (LEWA). The ESM system has been replaced and GPS navigation installed. The rebuilt submarines are armed with new torpedoes (Seeaal), and the propulsion system has been comprehensively refurbished, and improvements have been made to the accommodation.

List of units

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

Name Call
sign
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...

Laid down Launched Commissioned Decommissioned Fate
S192 U13 DRDG April 19, 1973 September 23, 1997 scrapped
S193 U14 DRDH April 19, 1973 September 23, 1997 scrapped
S194 U15 DRDI June 1970 June 1972 July 17, 1974 December 14, 2010
S195 U16 DRDJ November 1970 August 1972 November 9, 1973 March 31, 2011
S196 U17 DRDK October 1970 October 1972 November 28, 1973 December 14, 2010
S197 U18 DRDL April 1971 October 1972 December 19, 1973 March 31, 2011
S198 U19 DRDM November 9, 1973 August 23, 1998 scrapped
S199 U20 DRDN May 24, 1974 September 26, 1996 scrapped
S170 U21 DRDO August 16, 1974 June 3, 1998 scrapped
S171 U22 DRDP November 1971 March 1973 July 26, 1974 December 18, 2008
S172 U23 DRDQ March 1972 May 1973 May 2, 1975 March 31, 2011
S173 U24 DRDR March 1972 June 1973 October 16, 1974 March 31, 2011
S174 U25 DRDS July 1971 May 1973 April 19, 1973 January 31, 2008
S175 U26 DRDT July 1972 November 1973 March 13, 1975 November 9, 2005 scrapped
S176 U27 DRDU October 16, 1974 June 13, 1996 scrapped
S177 U28 DRDV October 1972 January 1974 December 18, 1974 June 30, 2004 scrapped
S178 U29 DRDW January 1972 November 1973 November 27, 1974 December 31, 2006
S179 U30 DRDX December 1972 April 1974 March 13, 1975 January 31, 2007 scrapped


Notes:
  • After its decommissioning, U21 had an ever-changing history: First it should have been sold to Indonesia
    Indonesia
    Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

     as Cundamanik. After the deal failed it was about to be scrapped in Itzehoe
    Itzehoe
    Itzehoe is a town in the German state of Schleswig-Holstein.As the capital of the district Steinburg, Itzehoe is located on the Stör, a navigable tributary of the Elbe, 51 km northwest of Hamburg and 24 km north of Glückstadt...

    , but HDW managed to salvage it for the planned company's museum in Kiel. After that had to be given up, U21 was gifted to the city of Eckernförde
    Eckernförde
    Eckernförde is a German city in Schleswig-Holstein, Kreis Rendsburg-Eckernförde at the Baltic Sea near Kiel. The population is about 23,000.All German submarines are stationed in Eckernförde....

     and towed there. For a short time it had been a well accepted tourist attraction/technology museum, but because of local politics it was sold for scrap and broken up.
  • U13, U14, U19 and U20 were also to be sold to Indonesia
    Indonesia
    Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

    . Their names would have been Nagarongsang, Nagabanda, Bramastra and Alugoro.
  • The six surviving submarines are all upgraded Type 206A ones.


February/March 2010 the U26, U28 and U30 were towed by Polish tug Ikar to 's-Gravendeel, Netherlands to be scrapped.
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