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, Mk-37 Mod 1/2, Tp 61, Tp 612, Tp 613;

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 The boats have since been withdrawn from service in the Norwegian and Danish navies.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.

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