Ohio-class submarine

The Ohio class is a class of nuclear-powered submarines of the United States Navy made up of 14 ballistic missile submarines and 4 cruise missile submarines. At 18,750 tons submerged they are the largest submarines ever built for the Navy and can carry 24 Trident II ballistic missiles. The 14 ballistic missile boats form part of the American nuclear deterrent triad and together carry about half of active American strategic warheads. Each boat has two complete crews, called Blue and Gold, that alternate patrols of 70 to 90 days. Hull sections were built at the General Dynamics Electric Boat facility at Quonset Point and assembled at Groton, Connecticut. Four of the oldest boats were converted to carry Tomahawk missiles, and the Columbia class is due to replace the class from 2031.