HMS Belos is a submarine rescue ship 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...

's 1st Submarine flotilla. She carries Sjöugglan, Argus, Mantis and URF. She is also capable of carrying the British LR5

LR5

The LR5 is a manned submersible which was used by the British Royal Navy until 2009 when it was leased to support the Royal Australian Navy. It is designed for retrieving sailors from stranded submarines and is capable of rescuing 16 at a time....

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History

Originally built as a diving platform to serve offshore oil platform

Oil platform

An oil platform, also referred to as an offshore platform or, somewhat incorrectly, oil rig, is a lаrge structure with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining and marketing...

s, she was bought and converted to a submarine rescue ship. HMS Belos is the largest ship (by displacement) in the Swedish Navy.