Sutjeska-class submarine

The Sutjeska class was a class of two diesel-electric submarines built for the Yugoslav Navy during the late 1950s and early 1960s. Built by the Uljanik Shipyard in Pula, the two boats were the first class of submarines to be built in Yugoslavia. Their service lives were mostly uneventful and they were retired in the 1980s.^[1]

Class overview
Builders	Uljanik Yard, Pula
Operators	Yugoslav Navy
Preceded by	Osvetnik-class submarine
Succeeded by	Heroj-class submarine
Built	1957–1962
In commission	1962–1987
Completed	2
Retired	2
Scrapped	2
General characteristics
Type	submarine
Displacement	700 tons standard 820 tons full load surfaced 945 tons submerged
Length	60 m (200 ft)
Beam	6.6 m (22 ft)
Draught	4.8 m (16 ft)
Propulsion	2-shaft diesel electric 2 × Sulzer diesels (1,800 hp (1,300 kW)) 2 × electric motors
Speed	14 knots (26 km/h; 16 mph) surfaced 9 knots (17 km/h; 10 mph) submerged
Complement	38
Armament	6 × 533 mm (21.0 in) torpedo tubes (4 bow, 2 stern)

Design

The design was done in Yugoslavia and was vaguely based on Italian Sirena-class submarine, some of which were built at 3. Maj shipyard (formerly known as Cantieri Navali Quarnero).^[1] They were already outdated by the time they entered service, however they provided valuable technical experience for future Yugoslav submarine projects.^[2] Soviet sensors (radar and sonar) were used. The ships had a refit in the 1970s with modernised sonar.

Boats

Name	Pennant number	Namesake	Builder	Laid down	Launched	Commissioned	Fate
Sutjeska	P-811	Battle of the Sutjeska	Uljanik Shipyard, Pula, SR Croatia, SFR Yugoslavia	1957	28 September 1958	16 September 1960	Deleted during the 1980s
Neretva	P-812	Battle of the Neretva		1957	1959	1962	Deleted during the 1980s