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Minoregger KNM Vidar

Minoregger KNM Vidar was upgraded to command vessels because there is a need for command and support vessels for mining operations. At the same time, the vessel maintains the mining authority. Coastal shadows and NATO need command and support vessels for mining operations, especially MCMFORNORTH in NATO context. The upgrade has been carried out especially with regard to communication and logistics support, as well as accommodation facilities for additional personnel. The vessel can thus be regarded as a "multi-roll" vessel very suitable for the purpose.

By 2000 KNM Vidar was the only operational mining unit. As the mines are positioned in the water, they can be divided into bottom mines, anchored mines and moving mines. Mines can be detonated using remote control, direct contact with mining horns on the minecouple or associated antennas. There were also influence minerals. These usually react to ships 'acoustic noise in the water, vessels' magnetic fields or pressure changes one gets in the water when vessels pass over. These are usually equipped with ship counters so that one can escape a given number of vessels before it possibly detonates when the right values are achieved.

Modern influenza minerals are equipped with even more advanced sensors and influences. Common to all types of mines is that they are often equipped with "anti-removal mechanisms": These aim to complicate the tasks of miners and miners during desperation, explosion placement to blow mines or when mining wiper with sweeping equipment comes to sweep anchored mines.

Bottom mines also have form and coating that make detection with sonar more difficult. Miner does not work like most people think it's the gas bubbles and the pressure wave from explosion that will shake ships first and foremost so that all its systems and personnel get injuries, but ideally lift it in the middle so that the spine on the vessel breaks, the vessel breaks two. A direct hit will actually do less harm than a mine that blows 10-15 meters below.

The developments on the mine front has long been quiet, but in recent years efforts to find new mines and mechanisms have gone on. Also the traditional mining owner has become old fashioned; Today we find mines that can be loaded from submarines, planes (eg B-52) and helicopters. The future of the mining weapon is not known, but changes and modernizations will probably come over a decade.

The MK-6 mining system is an independent anchored mining system for use on surface vessels and / or submarines. Mines were produced in the United States before WWII and given to Norway as military aid in 1952/53. The mine has been modified several times, the most important in 1991 when a new fuse and reinforcement unit was built to improve safety before and during laying. MK-6 is an antenna mine that detonates after direct contact between the vessel or minesweep and the horns on the minecup, possibly the antennas of cups above and below the minecup.

The mining system uses the galvanic tension that occurs between copper and steel in salt water. The voltage goes into a fuse and arming device and connects the detonator with a battery. When the device gets enough galvanic voltage over a given period of time as a result of copper and iron contact, the mine will detonate. The MK-6 has 136 kg of TNT and will provide the best effect against a surface vessel of about 15 meters deep.

KNM Vidar carried up to 326 mines of this type. Several civilian vessels, Navy's supply vessels and gangway vessels also have the opportunity to lay these mines. Most vessels have the capacity and equipment to carry and load different amounts of bottom mines.

The work on upgrading 26-year-old KNM Vidar to become a command-line for the Norwegian Task Group (NoTG) started up just before Christmas 2002 and continued until 07 February 2003 under the auspices of FLO / SJØ, Ramsund department. Saturday, February 8th, crew went on board with the NoTG staff to enter the training activities in northern Norway in week seven and eight.

The KNM Vidar crew had recently worked on handing over the sister ship, formerly "Vale", to the Latvian navy, and has therefore not participated in much of the conversion. Geir Thorkildsen was the ship manager at KNM Vidar and looked forward to the multipurpose opportunities that the rebuilding entails. "It was very good that NoTG wanted to upgrade the vessel right now. It should be upgraded anyway, and it's always okay to get it done right away, he says. Norway will lead MCMFORCENORTH in 2004-2005 and KNM Vidar will then be a commando vessel. "This is one of several reasons why the vessel has been upgraded," says Thorkildsen. "But the whole remodeling is not completely finished; A new bus solution is under construction. In the autumn we will probably have a similar bridge as those coming on the new frigates..."

In 2003, the vessel was used as a command platform for the Norwegian Task Group (NoTG) during various exercises and as a school vessel for the Naval Administration for the Navy, a few weeks in the summer of 2003. The vessel sailed as a command / support vessel for MCMFORNORTH in 2004/2005. During this period, Norway will hold the position of VP for MCMFORNORTH for the second time, last in 1998/99. This position is planned for Norway every six years.

KNM Vidar was handed over to the Navy in 1977 as a mining authority. In that role, the vessel entered as an important part of the invasion defense. KNM Vidar was built in 1977 at the Mjellem & Karlsen shipyard in Bergen, as the first of a class of two miners. Both vessels were home base at Ramsund Orlogstasjon, at the inlet of Ofotfjorden in northern Norway. Until 1991, KNM Vidar and the sister ship KNM Vale (delivered to Latvia in 2003) were always loaded with mines ready for short notice.

Mining was, in combination with other defense measures, intended to constitute a significant obstacle to a possible invasion force. In addition, the vessel was a so-called auxiliary escort vessel, ie a vessel with escort service as a secondary task. The main task of that role was to protect the sea's supply lines against enemy submarines. To solve this task, the vessel was equipped with sonar, torpedo and syncheminer. For self-defense against aircraft or missile attacks, the vessel has two 40mm Bofors guns and Mistral air defense missiles.

After the end of the Cold War, it was decided to save the mines on land, ready to be taken on board again if the security policy situation indicated that.

Since then, the vessel received several tasks. From April 1998, KNM Vidar served a year as command and support vessel for a NATO squadron of mining dredges (mining and mining vessels). The strength of six to eight vessels was led by KNM Vidar. The support function consisted of being able to supply spare parts and fuel to the vessels in the sea or to the dock. Later, the vessel also served as a command vessel for the Norwegian Task Group (NoTG), composed of frigates, MTBs, submarines and mining divers. In addition, the vessel is suitable for performing tasks such as sovereignty, authority, presence and representation.

KNM Vidar is named after the god who was one of the sons of Odin in Norrøn mythology. Vidar went to be the infant. When Odin was killed by Fenrisulven, under Ragnarok, Vidar assaulted his father by killing Fenrisulven. Then it turned out that the poor man was the second strongest of the gods. There are certain parallels to the mining company KNM Vidar. The vessel does not look freaking out, but when it comes to a run, mines can stop any military operation.

In 2006 Vidar was sold to Lithuania and given the name Jotvingis. The Lithuanian Navy uses her as a command and support ship. Her sister ship HNoMS Vale was sold to Latvia in 2003.

NumberNameYearNotes
N52Vidar1977 2006 : sold to Lithuania
N53Vale19782003 : sold to Latvia

Length overall 64.8 meters
Length in KVL (Constructed waterline) 60.0 meters
Width in span 12.0 meters
Depth in KVL 4.0 meters
Depth from KVL to bottom edge sonar 4.6 meters Depth of
vessel height above the keel 25.6 meters
Distance from center 2.5 meter
Propeller diameter 2.1 meter
Displacement to KVL 1750 tonnes
Displacement light ship 1150
Speed At 4200HK - depth 4 meters: 14.8 knots

Minoregger KNM Vidar Minoregger KNM Vidar Minoregger KNM Vidar Minoregger KNM Vidar






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Page last modified: 28-11-2018 18:23:17 ZULU