Sava-class river monitor

Yugoslav Vardar in 1933
Class overview
Name	Sava
Builders	Stabilimento Tecnico Triestino, Linz
Operators	Austro-Hungarian Navy  Danube Guard  Royal Romanian Navy  Royal Yugoslav Navy  Soviet Navy
Preceded by	Enns class
Succeeded by	Mo. XI class
Built	1914–1915
In service	1915–1946?
Completed	2
Lost	1
Retired	1
General characteristics
Type	River monitor
Displacement	580 tonnes (570 long tons)
Length	62 m (203 ft 5 in)
Beam	10.3 m (33 ft 10 in)
Draught	1.3 m (4 ft 3 in)
Installed power	1,750 ihp (1,300 kW) 2 Yarrow boilers
Propulsion	2 vertical triple-expansion steam engines
Speed	13.5 knots (25.0 km/h; 15.5 mph)
Range	750 nautical miles (Sava, Romanian service, World War II)
Complement	91 officers and enlisted men
Armament	1 × twin 120 mm (4.7 in) L/45 guns 1 × twin 120 mm (4.7 in) L/10 howitzers 1 × twin 66 mm (2.6 in) L/26 guns 2 × single 47 mm (1.9 in) L/44 guns 7 × machine guns (6 in Romanian service) 1 x 610 mm depth charge thrower (in Romanian service)
Armour	Belt and bulkheads: 40 mm (1.6 in) Deck: 25 mm (0.98 in) Conning tower, gun turrets and cupolas: 50 mm (2.0 in)

The Sava-class river monitors were built for the Austro-Hungarian Navy during the mid-1910s. The two ships of the class were assigned to the Danube Flotilla and participated in World War I. The ships survived the war and were transferred to Romania and the newly created Kingdom of Serbs, Croats and Slovenes (later Yugoslavia) as reparations.