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History | |
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Name | Belos |
Builder | Shipyard De Hoop, Netherlands Dutch |
Launched | 1985 |
Acquired | 1992 |
Identification |
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Notes | Previously Energy Supporter |
Badge | ![]() |
General characteristics | |
Displacement | 6150 tonnes [1] |
Length | 104.9 metres (344 ft) [1] |
Beam | 18.0 metres (59.1 ft) [1] |
Draft | 5.1 metres (17 ft) [1] |
Propulsion | Two Azimuth thrusters @ 1840 kw each |
Speed | 13 knots (24 km/h; 15 mph) [1] |
Complement |
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Notes | Five cranes with a lifting capacity of 5, 6, 10, 55 and 100 tonnes respectively |
HSwMS Belos (A214) is a submarine rescue ship in the Swedish Navy's 1st Submarine flotilla. She carries the Submarine Rescue Vehicle URF. She is also capable of carrying the NATO rescue system NSRS. HSwMS Belos is currently (2017) the largest ship by displacement in the Swedish Navy. [1] HMS Belos is traditionally the name of the Swedish Navy's submarine rescue vessel and she is the third ship with that name.
Originally built as a diving support vessel, Belos was launched in 1985 at the Dutch shipyard De Hoop [2] operated in the international offshore business named "Energy Supporter". In 1992, she was purchased for the Royal Swedish Navy, was renamed Belos (III), and has since been redesigned into an advanced diving and submarine rescue ship. Belos, with the submarine rescue vessel URF was the first submarine rescue system that could perform Transfer Under Pressure (TUP) from a disabled submarine, via the rescue vessel to a decompression chamber system for treatment to avoid decompression sickness.
Normally, the ship does not anchor but hovers at the distressed submarine using her Azimuth- and bow thrusters, and the Dynamic Positioning (DP) system. Onboard Belos, an extensive array of Remotely Operated Vehicles (ROV’s), oceanographic equipment, craneage, diving-, medical-, and decompression facilities are accessible. Different sonar systems attached to the hull and towed astern of the Belos can be used for searching distressed submarines or other objects at the seabed. The Belos along with the Submarine Rescue Vessel (SRV) URF compose the backbone of the Swedish Submarine Escape and Rescue System.
Belos can perform diving and underwater tasks using wet-bell and remotely operated underwater vehicles (ROVs). The ability to perform various types of underwater work is essential for submarine rescue operations. If the mating area to which the rescue vessel is to connect with the distressed submarine is covered by debris, fishing nets or other obstacles, these obstacles must be removed before mating the rescue vessel to the submarine. For smaller submarines or crewed submersibles, the rescue operation may be cutting free the vessel itself if it is snagged by e.g. nets or cables and unable to surface (see AS-28). The wet-bell is used for air-diving with two divers at a time to a maximum depth of 60 metres (200 ft). The divers are equipped with hot-water suits, TV cameras, and constant communication with the diving supervisor on board the Belos. A slide leads from the divers' exit point to the chamber to speed up the surface decompression process.
The underwater vehicles are all equipped with positioning systems, TV cameras, and sonar systems, allowing them to operate in conditions of poor visibility. The maximum diving depth is 1000 m and underwater work is performed by using hydraulic manipulators with a range of interchangeable tools.
The Belos has a large craneage capacity. For lifting, craneage with a capacity of 5, 6, 10 or 100 tons is available. In addition, an A-frame in the stern with a capacity of 55 tons is used for handling the submarine rescue vessel URF.
HSwMS Belos (III), recent improvements:
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The following index is provided as an overview of and topical guide to underwater diving: Links to articles and redirects to sections of articles which provide information on each topic are listed with a short description of the topic. When there is more than one article with information on a topic, the most relevant is usually listed, and it may be cross-linked to further information from the linked page or section.
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The following index is provided as an overview of and topical guide to underwater diving: