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). Each displacing 18,750 tons submerged, the Ohio-class boats are the largest submarines ever built for the U.S. Navy. They are also the third-largest submarines ever built, behind the Russian Navy's Soviet era 48,000-ton Typhoon class, the last of which was retired in 2023,[b][11] and 24,000-ton Borei class.[12] Capable of carrying 24 Trident II missiles apiece, the Ohio class are equipped with just as many missiles as, if not more than, either the Borei class (16) or the deactivated Typhoon class (20). Like their predecessors the Benjamin Franklin and Lafayette classes,[13] the Ohio-class SSBNs are part of the United States' nuclear-deterrent triad, along with U.S. Air Force strategic bombers and intercontinental ballistic missiles.[14] The 14 SSBNs together carry about half of U.S. active strategic thermonuclear warheads. Although the Trident missiles have no preset targets when the submarines go on patrol,[15]: 392 they can be given targets quickly, from the United States Strategic Command based in Nebraska,[16] using secure and constant radio communications links, including very low frequency systems. All the Ohio-class submarines, except for USS Henry M. Jackson, are named for U.S. states, which U.S. Navy tradition had previously reserved for battleships and later cruisers. The Ohio class is to be gradually replaced by the Columbia class beginning in 2031. Description The Ohio-class submarine was designed for extended strategic deterrent patrols. Each submarine is assigned two complete crews, called the Blue crew and the Gold crew, each typically serving 70-to-90-day deterrent patrols. 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. These hatches allow rapid transfer of supply pallets, equipment replacement modules, and machinery components, speeding up replenishment and maintenance of the submarines. Moreover, the "stealth" ability of the submarines was significantly improved over all previous ballistic-missile subs. Ohio was virtually undetectable in her sea trials in 1982, giving the U.S. Navy extremely advanced flexibility.[17] USS Michigan (SSBN-727) at a dry-dock in November 2002, before its conversion to an SSGN The class's design allows the boat to operate for about 15 years between major overhauls. These submarines are reported to be as quiet at their cruising speed of 20 knots (37 km/h; 23 mph) or more as the previous Lafayette-class submarines at 6 knots (11 km/h; 6.9 mph), although exact information remains classified.[18] Fire control for their Mark 48 torpedoes is carried out by Mark 118 Mod 2 system,[8] while the Missile Fire Control system is a Mark 98.[8] The Ohio-class submarines were constructed from sections of hull, with each four-deck section being 42 ft (13 m) in diameter.[6][8] The sections were produced at the General Dynamics Electric Boat facility, Quonset Point, Rhode Island, and then assembled at its shipyard at Groton, Connecticut.[6] The US Navy has a total of 18 Ohio-class submarines which consist of 14 ballistic missile submarines (SSBNs), and four cruise missile submarines (SSGNs). The SSBN submarines provide the sea-based leg of the U.S. nuclear triad. Each SSBN submarine is armed with up to 20 Trident II submarine-launched ballistic missiles (SLBM). Each SSGN is capable of carrying 154 Tomahawk cruise missiles, plus a complement of Harpoon missiles to be fired through their torpedo tubes. ILLEGAL KNOWLEDGE #theknowledge #theknowledgetv #illegalknowledge submarine,nuclear submarine,submarine documentary,submarines,inside the most expensive submarine,virginia class submarine,inside the submarine,inside the most powerful submarine,life on a submarine,life inside submarine,virginia-class submarine,us submarine,deadliest submarines in the world,inside submarine,deadliest submarine in the world,inside russia's $5 billion typhoon submarine,inside submarine kitchen,submarines in the pacific space science history facts mestry ILLEGAL KNOWLEDGE illegal knowledge mestry movies druve rathe khan global studys #illegalknowledge @illegalknowledge #theknowledge #theknowledgetv #army #nevy #airforce #politicalconflitcs HISTORY STUDY FACTS KNOWLEDGE EDUCATION LEARNING History by khan sir History knowledge in hindi History knowledge by khan sir History knowledge shortvideo History knowledge shorts History knowledge in english History channel documentry Fact about space Fact about India Facts about Earth Facts video shorts Facts music FactsFacts tech Factbhai Factshorts Facts knowledge hindi Facts knowledge english Facts knowledge led