Vishnya-class intelligence ship
| SSV-535 Kareliya (foreground) and USS Texas in 1988 | |
| Class overview | |
|---|---|
| Builders | Stocznia Północna, Gdańsk, Poland | 
| Operators | |
| Preceded by | Balzam class | 
| Succeeded by | Yury Ivanov class | 
| In commission | 1985–present | 
| Planned | 7 | 
| Completed | 7 | 
| Active | 7 | 
| General characteristics | |
| Type | Intelligence collection ship | 
| Displacement | 3,470 tons full load | 
| Length | 91.5 m (300 ft 2 in) | 
| Beam | 14.6 m (47 ft 11 in) | 
| Draught | 4.5 m (14 ft 9 in) | 
| Propulsion | 2 shafts, 2x Zgoda Sulzer 12AV 25/30 diesel engines, 4,400 bhp (3,300 kW) | 
| Speed | 16 knots | 
| Complement | 146 (= 6 passengers) | 
| Sensors & processing systems | Radar: MR-212/201 (Palm Frond) Sonar: MG-349, MGP-303 | 
| Electronic warfare & decoys | Various intercept arrays and radio direction finding equipment | 
| Armament | 
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The Vishnya class (NATO reporting name) (also known as the Meridian class), Soviet designation Project 864, are a group of intelligence collection ships built for the Soviet Navy in the 1980s. The ships continue in service with the Russian Navy. The Russian Navy operates seven of these ships.