The Ohio-class submarines were constructed from sections of hull, with each four-deck section being 42 ft (13 m) in diameter.
#Ohio class submarine ipad mod
Fire control for their Mark 48 torpedoes is carried out by Mark 118 Mod 2 system, while the Missile Fire Control (MFC) system is a Mark 98. These submarines are reported to be as quiet at their cruising speed of 20 knots (37 km/h 23 mph) or more than the previous Lafayette-class submarines were at 6 knots (11 km/h 6.9 mph), although exact information remains classified. The class's design allows the warship to operate for about fifteen years between major overhauls. Longitudinal cross-section diagram of Ohio-class submarines These hatches allow rapid transfer of supply pallets, equipment replacement modules, and machinery components, significantly reducing the time required for replenishment and maintenance of the submarines. To decrease the time in port for crew turnover and replenishment, three large logistics hatches have been installed to provide large-diameter resupply and repair access. Each of these submarines is provided with two complete crews, called the Blue crew and the Gold crew, with each crew serving typically on 70- to 90-day deterrent patrols. The Ohio-class submarines were designed specifically for extended war-deterrence patrols. Two classes of the Russian Navy's submarines have larger total displacements: the Soviet-designed Typhoon-class submarines have more than twice the total displacement, and the Russian Federation's Borei-class submarines have roughly 25 percent greater displacement, but the Ohio-class warships carry more missiles and warheads than either of the other designs: 24 Trident missiles per boat, versus only 16 missiles for the Borei class (20 for the Borei II) and 20 for the Typhoon-class. The Ohio-class submarines are the largest submarines ever built for the U.S. states, which until that point was a tradition reserved for battleships and cruisers. Although the Trident missiles have no pre-set targets when the submarines go on patrol, the warships, when required, are capable of quickly being assigned targets by using secure and constant radio communications links at sea, including very low frequency (VLF) systems.Īll the Ohio-class submarines, except for the USS Henry M. The exact number of warheads deployed in the oceans of the world varies in an unpredictable and classified manner, always at or below a maximum number set by various Strategic Arms Reduction Treaties. The 14 Trident II SSBNs together carry approximately fifty percent of the total US active inventory of strategic thermonuclear warheads. The Ohio class is named after the lead submarine of this class, USS Ohio. The Navy has 18 Ohio-class ballistic missile submarines (SSBN) and guided missile submarines (SSGN).
The Ohio class is a class of nuclear-powered submarines used by the United States Navy. General characteristics SSBN-734 and subsequent hulls upon construction, SSBN-730 to SSBN-733 since refuelingĢ4 × Trident II D5 SLBM with up to 12 MIRVed W76 or W88 (300–475 kt TNT) nuclear warheads each, range 6,500 nmi (12,000 km 7,500 mi)Ģ2 tubes, each with 7 Tomahawk cruise missiles, totaling 154 General characteristics SSBN-726 to SSBN-733 from construction to refuelingĢ4 × 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)
The USS Michigan (SSBN-727) at a drydock, in November 2002.ġ6,764 tonnes (16,499 long tons) surfaced ġ8,750 tonnes (18,450 long tons) submerged Ģ× geared turbines 60,000 shp (45 MW) Fairbanks Morse auxiliary diesel Ģ0 knots (37 km/h 23 mph) submerged (official) Ģ5 knots (46 km/h 29 mph) submerged (reported) īQQ-6 passive bow-mounted array (which includes BQS-13 fire control array) Ĥ × 21 in (53 cm) Mark 48 torpedo tubes (midships)
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