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HMS Sjöormen (Sor)
Encyclopedia
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HMS Sjöormen was the lead ship
in the Swedish
submarine class Sjöormen, project name A11.
The planning of the ships included a number of different AIP-solutions including nuclear propulsion, however the ships where finally completed with for the time extremely large batteries. The ship was a single hull submarine, with hull shape influenced by the american experimental submarine USS Albacore
. The hulls was covered with rubber tiles to reduce the acoustic signature (Anechoic tiles), at this time a pioneer technology. The Sjöormen-class was also the first in the world to use an cross-rudder. The submarine served in the Swedish navy
for almost 30 years and was then after upgrades sold to Singapore
in 1997 together with its four sister ships.
HMS Sjöormen was the lead ship
Lead ship
The lead ship or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable military ships and larger civilian craft.-Overview:...
in the Swedish
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
submarine class Sjöormen, project name A11.
The planning of the ships included a number of different AIP-solutions including nuclear propulsion, however the ships where finally completed with for the time extremely large batteries. The ship was a single hull submarine, with hull shape influenced by the american experimental submarine USS Albacore
USS Albacore
USS Albacore has been the name of more than one United States Navy ship, and may refer to:, a patrol vessel in commission from 1917 to 1919, s submarine commissioned in 1942 and sunk in 1944, a submarine in commission from 1953 to 1972...
. The hulls was covered with rubber tiles to reduce the acoustic signature (Anechoic tiles), at this time a pioneer technology. The Sjöormen-class was also the first in the world to use an cross-rudder. The submarine served in the Swedish navy
Swedish Navy
The Royal Swedish Navy is the naval branch of the Swedish Armed Forces. It is composed of surface and submarine naval units – the Fleet – as well as marine units, the so-called Amphibious Corps .In Swedish, vessels of the Swedish Navy are given the prefix "HMS," short for Hans/Hennes...
for almost 30 years and was then after upgrades sold to Singapore
Singapore
Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...
in 1997 together with its four sister ships.