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There are three major types of submarines in the United States Navy: ballistic missile submarines, attack submarines, and cruise missile submarines. All submarines currently in the U.S. Navy are nuclear-powered. Ballistic missile submarines have a single strategic mission of carrying nuclear submarine-launched ballistic missiles.
Virginia. -class submarine. Only limited by food and maintenance requirements. The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States Navy. The class is designed for a broad spectrum of open-ocean and littoral missions, including anti-submarine ...
A nuclear submarine is a submarine powered by a nuclear reactor, but not necessarily nuclear-armed. Nuclear submarines have considerable performance advantages over "conventional" (typically diesel-electric) submarines. Nuclear propulsion, being completely independent of air, frees the submarine from the need to surface frequently, as is ...
First nuclear submarine; hull design enlarged from fleet boat Seawolf: 1 7 December 1953 30 March 1957 Unique submarine; liquid metal cooled S2G reactor (replaced with a pressurized-water reactor in 1959) Skate: 4 USS Skate (SSN-578) 21 July 1955 USS Seadragon (SSN-584) 5 December 1959 Skipjack: 6 USS Skipjack (SSN-585) 29 May 1956
Fact File: Attack Submarines - SSN. United States Navy. "Fact File: Fleet Ballistic Missile Submarines - SSBN". United States Navy. "Submarine Service: Operations and Support". Royal Navy. "SSBN-726 Ohio-Class FBM Submarines". Federation of American Scientists.
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).
The upcoming Columbia-class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) nuclear -powered ballistic missile submarines of the United States Navy are designed to replace the Ohio class. [7] Construction of the first vessel began on 1 October 2020. [8] She is scheduled to enter service in 2031.
The Los Angeles class of submarines are nuclear-powered fast attack submarines ( SSN) in service with the United States Navy. Also known as the 688 class (pronounced "six-eighty-eight") after the hull number of lead vessel USS Los Angeles (SSN-688), 62 were built from 1972 to 1996, the latter 23 to an improved 688i standard.