Riga-class frigate

	Finnish Riga class Hämeenmaa
Class overview
Name	Riga class
Operators	Soviet Navy; Bulgarian Navy; Volksmarine; Finnish Navy; Indonesian Navy; People's Liberation Army Navy;
Preceded by	Kola class
Succeeded by	Petya class; Krivak class;
Completed	69
General characteristics
Class and type	Frigate
Displacement	1,160 tons (standard); 1,416 tons (full load);
Length	91 m (299 ft)
Beam	10.2 m (33 ft)
Draught	3.16 m (10.4 ft)
Propulsion	2 × shaft steam turbines, 2 × boilers; 21,000 hp (16,000 kW)
Speed	28 knots (52 km/h; 32 mph)
Range	1,950 nmi (3,610 km; 2,240 mi) at 14 kn (26 km/h; 16 mph)
Complement	175
Armament	3 × 100 mm guns/56 (B-34) (3×1); 4 × 37 mm guns (2×2); 4 × 25 mm guns (2×2) - Some ships; MBU-600 anti-submarine rocket launchers (replaced by two RBU-2500); 2 or 3 × 533 mm torpedo tubes (1×2 or 1×3);

The Riga class was the NATO reporting name for class of frigates built for the Soviet Navy in the 1950s. The Soviet designation for these ships was Storozhevoi Korabl (escort ship) Project 50 Gornostay (Ermine stoat). The Riga class was analogous to World War II era destroyer escorts.

Class overview
Finnish Riga class Hämeenmaa
Name	Riga class
Operators	Soviet Navy Bulgarian Navy Volksmarine Finnish Navy Indonesian Navy People's Liberation Army Navy
Preceded by	Kola class
Succeeded by	Petya class Krivak class
Completed	69
General characteristics
Class and type	Frigate
Displacement	1,160 tons (standard) 1,416 tons (full load)
Length	91 m (299 ft)
Beam	10.2 m (33 ft)
Draught	3.16 m (10.4 ft)
Propulsion	2 × shaft steam turbines, 2 × boilers; 21,000 hp (16,000 kW)
Speed	28 knots (52 km/h; 32 mph)
Range	1,950 nmi (3,610 km; 2,240 mi) at 14 kn (26 km/h; 16 mph)
Complement	175
Armament	3 × 100 mm guns/56 (B-34) (3×1) 4 × 37 mm guns (2×2) 4 × 25 mm guns (2×2) - Some ships MBU-600 anti-submarine rocket launchers (replaced by two RBU-2500) 2 or 3 × 533 mm torpedo tubes (1×2 or 1×3)