Like its predecessor Benjamin Franklin- and Lafayette-class subs, the Ohio-class SSBNs are part of the United States' nuclear-deterrent triad, along with U.S. At 24 Trident II missiles apiece, Ohio-class boats carry more missiles than either the Borei class (16, 20 by the Borei II) or the Typhoon class (20). They are the world's third-largest submarines, behind the Russian Navy's Soviet-designed 48,000-ton Typhoon class and 24,000-ton Borei class. Each displacing 18,750 tons submerged, the Ohio-class boats are the largest submarines ever built for the U.S. The Ohio class of nuclear-powered submarines includes the United States Navy's 14 ballistic missile submarines (SSBNs) and its four cruise missile submarines (SSGNs). General characteristics (SSGN conversion)Ģ2 tubes, each with 7 Tomahawk cruise missiles, totaling 154 General characteristics (SSBN-734 and subsequent hulls upon construction, SSBN-730 to SSBN-733 since refueling)Ģ0 × Trident II D5 SLBM with up to 12 MIRVed W76 or W88 (475 kt TNT) nuclear warheads each, range 6,100 nmi (11,300 km 7,000 mi) General characteristics (SSBN-726 to SSBN-733 from construction to refueling)Ģ0 × Trident I C4 SLBM with up to 8 MIRVed 100 kt TNT W76 nuclear warheads each, range 4,000 nmi (7,400 km 4,600 mi) BQQ-6 passive bow-mounted array (which includes BQS-13 fire control array) Ĥ × 21 inch (533 mm) Mark 48 torpedo tubes (Forward Compartment 4th level).25 knots (46 km/h 29 mph) submerged (reported).20 knots (37 km/h 23 mph) submerged (official).The armament also includes four 533mm torpedo tubes and four 650mm torpedo tubes.USS Ohio, during her commissioning ceremony in 1981. The submarine can be armed with up to 12 submarine-launched cruise missiles capable of carrying nuclear warheads up to a range of 3,000km. The propulsion system includes one seven-bladed propeller and one retractable electric propulsor for reduced speed cruising. Its main machinery includes one pressurized water nuclear reactor, one steam turbine, and two turbo generators rated at 2,000KW. The surface speed of the sub is 10kt, while the submerged speed is 35kt. It is 110m in length, has a beam of 13.6m, and draught of 9.7m. The submarine features a double hull composed of an inner pressure hull and an outer light hull. The first sub in the class, Akula, was commissioned into the Soviet Navy in 1984. It includes ten submarines, of which nine are in the Russian Navy’s service and one in the Indian Navy’ service. The Akula Class is a nuclear-powered attack submarine with a submerged displacement of 13,800t. The submarine is armed with 16 Trident II missiles and four 533mm torpedo tubes. Two turbo generators and two diesel alternators are also Water reactor supplied by Rolls-Royce, two 20.5MW turbines manufacturedīy GEC, two auxiliary retractable propulsion motors and one shaft pump Its main machinery includes one pressurised The Vanguard Class submarines are 149.9m-long and have a beam ofġ2.8m and a draught of 12m. All the submarines are based at HM Naval BaseĬlyde, which is located 40km west of Glasgow, in Scotland. The first sub in the class, HMS Vanguard, The class consists of four submarines, namely Vanguard, Victorious, The nuclear-powered ballistic missile submarine is in service with the UK’s Royal Navy. The Vanguard Class has a submerged displacement of 15,900t, making it the sixth biggest submarine in the world. The armoury also includes six multiple independently targetable re-entry vehicle warheads, six 533mm torpedo tubes and RPK-2 Viyuga cruise missiles.Ħ. The submarine carries 16 missiles and 45t Bulava submarine-launched ballistic missile (SLBM). The submerged endurance is dependent on the availability of food stores. It sails at a speed of 15kt on the surface and 29kt when submerged. Its power plant consists of an OK-650 nuclear reactor, one steam turbine, and one shaft and propeller. The 170m-long Borei Class has a 13.5m beam and a 10m draught. Two more Borei Class submarines named Vladimir Monomakh and Knyaz Vladimir joined Yury Dolgoruky by late-2014. It was designed by Rubin Design Bureau and constructed at a cost of $770m. The first Borei Class submarine, Yury Dolgoruky, was inducted into the Pacific Fleet of the Russian Navy in January 2013. With a submerged displacement of 24,000t, it is a nuclear-powered missile-carrying submarine serving the strategic naval forces of Russia. The Borei Class ranks as the world’s second-biggest submarine, along with Oscar II Class.
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