Oslo class frigates were a Royal Norwegian Navy frigate design, based on the US Navy Dealey class destroyer escorts. The forward hull was customized to suit Norwegian sea conditions better (higher freeboard) and several sub-systems were European built
In the late 1970's the class recevid new armament, most notably Penguin, RIM-7 Sea Sparrow and Mark 32 torpedo launchers.
During 1995 and 1996, after the Knm 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 were replaced with new Fridtjof Nansen-class frigate starting in mid-2006.
Ships of the class.
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).
Ships of the class
| Name | Pennant number | Launched | Commissioned | Decommissione | ||
|---|---|---|---|---|---|---|
| Oslo | F300 | January 17, 1964 | January 29, 1966 | Sank in 1994 | ||
| Bergen | F301 | August 23, 1965 | June 22, 1967 | August 3, 2005 | ||
| Trondheim | F302 | September 4, 1964 | June 2, 1966 | June 2006 | ||
| Stavanger | F303 | February 4, 1966 | December 8, 1967 | June, 1998 | ||
| Narvik | F304 | January 8, 1965 | November 30, 1966 | August 1, 2007 |
Knm Oslo
The lead ship, Oslo, ran aground at Marsteinen on January 24, 1994, and on January 25 she was taken under tow. She sank on the same day outside Steinneset in Austevoll county. One officer was killed in the accident.
Knm Stavanger
Stavanger was decommissioned in 1998. She was later used for target practice and sunk in 2001 by a single DM2A3 torpedo launched from the Ula-class submarine Utstein (S 302).
Knm Bergen
Bergen was decommissioned in August 2005.
Knm Trondheim
On March 17, 2006 at 20:10 CET, 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.
Knm Narvik
Narvik, the last active ship of the class, has been transferred to the Royal Norwegian Navy Museum in Horten.
Knm Bergen is seen here leaving Faslane
