Kobben-class submarine

	Kobben-class profile
	HNoMs Utstein, now a museum ship
Class overview
Builders	Nordseewerke GmbH
Operators	Royal Norwegian Navy; Royal Danish Navy; Polish Navy;
Succeeded by	Ula class
Subclasses	Tumleren class
Built	1963–1966
In commission	1964–2021
Completed	15
Active	0
Laid up	3
Preserved	5 (2 in Poland, 2 in Denmark, 1 in Norway)
General characteristics
Type	Coastal submarine
Displacement	435 t (428 long tons) surfaced; 485 t (477 long tons) submerged;
Length	47.2 m (154 ft 10 in)
Beam	4.7 m (15 ft 5 in)
Draft	3.8 m (12 ft 6 in)
Propulsion	Diesel-electric; 2 MTU 1,100 hp (820 kW) diesel engines; 1 1,700 hp (1,300 kW) electric motor;
Speed	10 knots (19 km/h; 12 mph) surfaced; 17 knots (31 km/h; 20 mph) submerged;
Range	4,200 nmi (7,800 km; 4,800 mi) at 8 knots (15 km/h; 9.2 mph); 228 nmi (422 km) at 4 knots (7.4 km/h; 4.6 mph);
Test depth	180 m (590 ft)
Complement	24
Armament	8 533 mm (21.0 in) torpedo tubes capable of carrying the following torpedo types:; T1 / T1 mod 1, Mk-37 Mod 1/2, TP-612, TP-613[citation needed];

The Kobben class (also known as Type 207) is a customized version of the German Type 205 submarine. Fifteen vessels of this class were built for use by the Royal Norwegian Navy in the 1960s. The class later saw service with Denmark and Poland. The boats have since been withdrawn from service in the Norwegian and Danish navies. The Polish Navy operated two Kobben-class submarines (Bielik, Sęp) until 2021.^[1]^[2]

History

Along with the rest of the Royal Norwegian Navy, the submarine fleet was to be modernized according to the Fleet plan of 1960. After the war, Norway needed a navy more suited for coastal operations rather than large, seagoing vessels. This made the choice of a new type of submarines rather slim, not many NATO submarines being suited for this type of operations. A German Type 201 submarine was lent to the Royal Norwegian Navy for evaluation and adaptation. The result was the Type 207, of which 15 vessels were delivered to Norway in the period 1964 – 67. All Kobben-class submarines were built by Rheinstahl Nordseewerke GmbH in Emden. Between 1985 – 93, six boats were lengthened by 2 m (6 ft 7 in) and modernized, most notably with new sonar equipment.

On 24 November 1972, the Kobben-class submarine HNoMS Sklinna of the Royal Norwegian Navy had "contact" with what they presumed was a Whiskey-class submarine, after 14 days of "hunt" in Sognefjord. Military documents released in 2009 confirm this episode.^[3]

During that period, four others were sold to the Royal Danish Navy (known there as the Tumleren class), three operational (modernized) and one for spare parts. HDMS Sælen served in the 2003 invasion of Iraq from May 2002 until June 2003.

In 2001, the Kobben class was completely phased out in Norwegian service, replaced by the newer Ula class. Five modernized vessels were given to the Polish Navy, four as operational units and one for spare parts.^[4] Before they were transferred, the Polish crews were trained and the boats were overhauled.

During 2004, all of the operational Danish boats (Tumleren, Sælen and Springeren) were decommissioned. They were mothballed as of 2005^[update], waiting to be scrapped or transferred to another nation.

Vessels

*Kobben* class — significant dates
Pennant	Name	Commissioned	Notes
S315	Kaura	1965	Transferred to Denmark in 1991 for spare parts
S316	Kinn	8 April 1964	Scuttled in Bjørnafjord in 1990
S317	Kya	15 June 1964	Transferred to Denmark in 1991 as HDMS Springeren (S324). Preserved as a museum ship in Langeland.
S318	Kobben	15 August 1964	Transferred to Poland in 2002 for spare parts and as of 17 December 2011 moved to Maritime Academy in Gdynia (Akademia Marynarki Wojennej) for crew training.^[5]
S319	Kunna	29 October 1964	Transferred to Poland in 2003 as ORP Kondor. Decommissioned as of 20 December 2017.^[6]
S300	Ula	1965	Renamed Kinn (S316) in 1987, scrapped in 1998. Co-operated in the Anglo Netherlands Norwegian Cooperation Program (ANNCP) program^[7] regarding research on stealth properties of submarines.
S301	Utsira	1965	Scrapped in 1998
S302	Utstein	1965	Transferred to the naval museum in Horten in 1998 as a museum ship
S303	Utvær	1965	Transferred to Denmark in 1989 as HDMS Tumleren (S322)
S304	Uthaug	1965	Transferred to Denmark in 1990 as HDMS Sælen (S323), now a museum ship in Copenhagen.
S305	Sklinna	1966	Reconditioned in 1989, scrapped in 2001
S306	Skolpen	1966	Transferred to Poland in 2002 as ORP Sęp. Retired on 14 December 2021
S307	Stadt	1966	Scrapped in 1989
S308	Stord	1967	Transferred to Poland in 2002 as ORP Sokół. Decommissioned in Poland in 2018 and being sent to Naval Museum, Gdynia.^[8]
S309	Svenner	1967	Transferred to Poland in 2003 as ORP Bielik. Retired on 14 December 2021^[9]