Oslo class frigate
Encyclopedia
The Oslo class frigate is a Royal Norwegian Navy
frigate
design, based on the US Navy
Dealey class
destroyer escort
s. The forward hull was customized to suit Norwegian sea conditions better (higher freeboard
) and several sub-systems were European built.
, Norway
between 1964 and 1966. The construction of the vessels was part of the Navy rebuilding program, approved by the Norwegian government in 1960. Half of the project expenses were funded by the United States
as a part of the Mutual Defense Assistance Program (MDAP)
(a program that ran from when it was passed by the Congress
in October 1949 until 1967–68).
and Mark 32 torpedo launchers
. Another modernization was carried out in the 1980s.
During 1995 and 1996, after HNoMS Oslo experienced an engine failure, and subsequently sank after sailing in heavy weather, the rest of the class was once again modernized. The hulls were strengthened, which in turn increased the displacement with 200 tonnes.
All of the Oslo class are now retired, with HNOMS Narvik preserved as a museum ship. The Oslo class were replaced by the Fridtjof Nansen class
frigates. This replacement started in mid-2006.
The lead ship, Oslo, ran aground at Marsteinen on January 24, 1994. One officer was killed in the accident. The next day, on January 25, she was taken under tow. She sank on the same day in Korsfjorden outside Steinneset in Austevoll
county.
launched from the Utstein (S 302).
Bergen was decommissioned in August 2005.
, the Trondheim ran aground outside of the Lines island in Sør-Trøndelag
. No personal injuries among the 121-man crew were reported. The incident was reported from the ship itself, and at 20:30 it came loose again. Water flooded two compartments (paint storage and forward pump room) of the ship. The compartments were sealed and three ships were sent to assist the frigate. The frigate was towed to port in Bergen by the coast guard vessel KV Tromsø.
in Horten
.
Royal Norwegian Navy
The Royal Norwegian Navy is the branch of the Norwegian Defence Force responsible for naval operations. , the RNoN consists of approximately 3,700 personnel and 70 vessels, including 5 heavy frigates, 6 submarines, 14 patrol boats, 4 minesweepers, 4 minehunters, 1 mine detection vessel, 4 support...
frigate
Frigate
A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...
design, based on the US Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Dealey class
Dealey class destroyer escort
The Dealey class destroyer escorts were the first post-World War II escort ships built for the United States Navy.Slightly faster and larger than the escort destroyers of the previous era, they were fitted with twin-mounted 3 inch guns, ASW rockets, a depth charge rack and 6 depth charge launchers...
destroyer escort
Destroyer escort
A destroyer escort is the classification for a smaller, lightly armed warship designed to be used to escort convoys of merchant marine ships, primarily of the United States Merchant Marine in World War II. It is employed primarily for anti-submarine warfare, but also provides some protection...
s. The forward hull was customized to suit Norwegian sea conditions better (higher freeboard
Freeboard (nautical)
In sailing and boating, freeboardmeans the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship...
) and several sub-systems were European built.
Construction
All ships were built at the Navy Main Yard in HortenHorten
is a town and municipality in Vestfold county, Norway—located along the Oslofjord. The administrative centre of the municipality is the town of Horten. The municipality also includes the villages of Borre, Åsgårdstrand, Skoppum, and Nykirke....
, Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
between 1964 and 1966. The construction of the vessels was part of the Navy rebuilding program, approved by the Norwegian government in 1960. Half of the project expenses were funded by the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
as a part of the Mutual Defense Assistance Program (MDAP)
Mutual Defense Assistance Act
The Mutual Defense Assistance Act was a United States Act of Congress signed by President Harry S. Truman on 6 October 1949. For US Foreign policy, it was the first U.S. military foreign aid legislation of the Cold War era, and initially to Europe...
(a program that ran from when it was passed by the Congress
United States Congress
The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....
in October 1949 until 1967–68).
Modernization
In the late 1970s, the class received new armament, most notably Penguin, RIM-7 Sea SparrowRIM-7 Sea Sparrow
RIM-7 Sea Sparrow is a US ship-borne short-range anti-aircraft and anti-missile weapon system, primarily intended for defense against anti-ship missiles...
and Mark 32 torpedo launchers
Mark 32 Surface Vessel Torpedo Tubes
The Mark 32 Surface Vessel Torpedo Tubes system is a torpedo launching system designed for the United States Navy. The Mark 32 has been the standard anti-submarine torpedo launching system aboard United States Navy surface vessels since its introduction in 1960, and in use aboard the warships of...
. Another modernization was carried out in the 1980s.
During 1995 and 1996, after HNoMS Oslo experienced an engine failure, and subsequently sank after sailing in heavy weather, the rest of the class was once again modernized. The hulls were strengthened, which in turn increased the displacement with 200 tonnes.
All of the Oslo class are now retired, with HNOMS Narvik preserved as a museum ship. The Oslo class were replaced by the Fridtjof Nansen class
Fridtjof Nansen class frigate
The Fridtjof Nansen-class frigates are the main surface combatant units of the Royal Norwegian Navy. The ships are named after famous Norwegian explorers, with the lead ship of the class bearing the name of Fridtjof Nansen, the Norwegian scientist, explorer and humanitarian.Five ships were ordered...
frigates. This replacement started in mid-2006.
Ships
Five frigates of this class were built. All of them were modernized during the period 1987–1990. They bear the prefix KNM (Kongelig Norske Marine, meaning Royal Norwegian Navy) in Norwegian and HNoMS (His Norwegian Majesty's Ship) in English.| Name | Pennant number |
Launched | Commissioned | Decommissioned |
|---|---|---|---|---|
| F300 | January 17, 1964 | January 29, 1966 | Sank in 1994 | |
| F301 | August 23, 1965 | June 22, 1967 | August 3, 2005 | |
| F302 | September 4, 1964 | June 2, 1966 | June 2006 | |
| F303 | February 4, 1966 | December 8, 1967 | June, 1998 | |
| F304 | January 8, 1965 | November 30, 1966 | August 1, 2007 |
Oslo
Austevoll
Austevoll is a municipality and an archipelago in the district of Midthordland in the county of Hordaland in Western Norway, Norway. Austevoll was separated from Sund on 1 January 1886....
county.
Stavanger
Stavanger was decommissioned in 1998. She was later used for target practice and sunk in 2001 by a single DM2A3 torpedoTorpedo
The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...
launched from the Utstein (S 302).
Bergen
Trondheim
On March 17, 2006 at 20:10 CETCentral European Time
Central European Time , used in most parts of the European Union, is a standard time that is 1 hour ahead of Coordinated Universal Time . The time offset from UTC can be written as +01:00...
, the Trondheim ran aground outside of the Lines island in Sør-Trøndelag
Sør-Trøndelag
- References :...
. No personal injuries among the 121-man crew were reported. The incident was reported from the ship itself, and at 20:30 it came loose again. Water flooded two compartments (paint storage and forward pump room) of the ship. The compartments were sealed and three ships were sent to assist the frigate. The frigate was towed to port in Bergen by the coast guard vessel KV Tromsø.
Narvik
Narvik, the last active ship of the class, has been transferred to the Royal Norwegian Navy MuseumRoyal Norwegian Navy Museum
The Royal Norwegian Navy Museum is a museum documenting the history of the Royal Norwegian Navy. It is located at the former main naval base of Karljohansvern in Horten. The museum was founded by C.F. Klinck on 24 August 1853...
in Horten
Horten
is a town and municipality in Vestfold county, Norway—located along the Oslofjord. The administrative centre of the municipality is the town of Horten. The municipality also includes the villages of Borre, Åsgårdstrand, Skoppum, and Nykirke....
.
See also
- Fridtjof Nansen-class frigateFridtjof Nansen class frigateThe Fridtjof Nansen-class frigates are the main surface combatant units of the Royal Norwegian Navy. The ships are named after famous Norwegian explorers, with the lead ship of the class bearing the name of Fridtjof Nansen, the Norwegian scientist, explorer and humanitarian.Five ships were ordered...
- List of Royal Norwegian Navy ships