Sava-class submarine

Sava class

Sava in 1998
Class overview
Builders	Brodogradilište specijalnih objekata (BSO), Split, SR Croatia
Operators	SFR Yugoslav Navy FR Yugoslav Navy
Preceded by	Heroj class
Built	1975–1981
In commission	1978–2002
Completed	2
Retired	2
General characteristics
Type	Attack submarine
Displacement	Surfaced: 770 t (760 long tons) Submerged: 964 t (949 long tons)
Length	55.9 m (183 ft 5 in)
Propulsion	One shaft; diesel-electric 2 × MTU diesel engines 1 × Končar electric motor
Speed	Surfaced: 10 knots (19 km/h; 12 mph) Submerged: 16.5 knots (30.6 km/h; 19.0 mph)
Test depth	300 m (984 ft 3 in)
Complement	35
Armament	6 × 533 mm (21.0 in) torpedo tubes for: 10 torpedoes or 20 mines

The Sava class was a class of diesel-electric attack submarines built for the Yugoslav Navy during the late 1970s and early 1980s. Developed by the Brodarski Institute (BI) from Zagreb, the two strong class was built by the Brodogradilište specijalnih objekata (Special objects shipyard) in Split. They were intended as a replacement for the aging Sutjeska-class submarines. Compared to the earlier Heroj class, the Sava class was longer with more powerful armament that consisted of six torpedo tubes that could also be used for minelaying.

With the start of the Croatian War of Independence, both submarines were relocated to Boka Kotorska where they would be commissioned with the new FR Yugoslav Navy of, what would eventually become, Serbia and Montenegro. Both were decommissioned during the early 2000s.