Scorpion Facts Sheet

• Russian Designator: Project 641
• NATO Designator: Foxtrot-Class
• Manufacturer's Number: B-427
• Built:1972
• Decommissioned: 1994
• Length: 299 feet, 6 inches
• Beam: 24 feet, 7 inches
• Draft: 20 feet
• Displacement: 1,952 tons (surfaced), 2,475 tons (submerged)
• Built: Sudomekh Shipyard, Leningrad
• Construction: 3/8 inch outer light hull comprising ballast tanks. 7/8 inch QT28 Nickel Steel pressure hull.
• Complement: 12 officers, 10 midshipmen, 56 seamen
• Maximum Diving Depth: 985 feet
• Speed: 16 knots (surfaced), 15 knots (submerged), 9 knots (snorkeling)
• Range: 20,000 miles (surfaced at 8 knots), 11,000 miles (snorkeling), 380 miles (submerged at 2 knots)
• Endurance: 3 - 5 days submerged
• Propulsion: 3 x Kolomna 2D42M diesel engines, 2,000 hp each, 3 x electric motors; 2 with 1,350 hp and 1 with 2,700 hp, 1 x auxiliary motor with 180 hp, 3 x propeller shafts, each with 6 bladed propellers
• Torpedoes: 22 maximum
• Radar: Surface search Snoop tray; I band
• Sonar: Herkules medium-frequency (active/passive), Feniks (passive search/attack)
• Electronic warfare: Stop Light, Radar Warning, Quad Loop Directional Finder