Editing Ohio-class submarine (section)

== 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.<ref>D. Douglas Dalgleish and Larry Schweikart, Trident. Carbondale, Illinois: Southern Illinois University Press. 1984.</ref>

[[File:USS Michigan (SSBN-727).jpg|thumb|left|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 {{convert|20|kn|lk=in}} or more as the previous {{sclass|Lafayette|submarine|1}}s at {{convert|6|kn}}, although exact information remains classified.<ref>{{Cite book|last=Lee|first=T. W.|url=https://books.google.com/books?id=-nrZqzQs3jMC&q=Ohio+class+submarine+noise&pg=PA343|title=Military Technologies of the World [2 volumes]|date=2008-12-30|publisher=ABC-CLIO|isbn=978-0-275-99536-2|page=344|language=en}}</ref> Fire control for their [[Mark 48 torpedo]]es is carried out by Mark 118 Mod 2 system,<ref name="Adcock_p41" /> while the Missile Fire Control system is a Mark 98.<ref name="Adcock_p41" />

The ''Ohio''-class submarines were constructed from sections of hull, with each four-deck section being {{convert|42|ft|abbr=on}} in diameter.<ref name="Adcock_p40" /><ref name="Adcock_p41" /> The sections were produced at the [[General Dynamics Electric Boat]] facility, [[Quonset Point]], [[Rhode Island]], and then assembled at its shipyard at [[Groton, Connecticut]].<ref name="Adcock_p40" />

The US Navy has a total of 18 ''Ohio''-class submarines which consist of 14 ballistic missile submarines (SSBNs), and four [[cruise missile submarine]]s (SSGNs). The SSBN submarines provide the sea-based leg of the U.S. [[nuclear triad]]. Each SSBN submarine is armed with up to 20 [[UGM-133 Trident II|Trident II]] [[submarine-launched ballistic missile]]s (SLBM). Each SSGN is capable of carrying 154 [[Tomahawk (missile family)|Tomahawk]] [[cruise missile]]s, plus a complement of [[Harpoon missile]]s to be fired through their [[torpedo tube]]s.