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USS Ohio undergoing conversion to a cruise missile submarine. The U.S. Navy's first cruise missile submarines were developed in the early 1950s to carry the SSM-N-8 Regulus missile. The first of these was a converted World War II era Gato-class submarine, USS Tunny, which was fitted with a hangar capable of carrying a pair of Regulus missiles.
USS Georgia (SSBN-729/SSGN-729), an Ohio-class cruise missile submarine, is the second vessel of the United States Navy to be named for the U.S. state of Georgia. Construction and commissioning [ edit ]
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, and are capable of carrying 24 Trident II missiles apiece.
The first sea-based missile deterrent forces were a small number of conventionally powered cruise missile submarines and surface ships fielded by the United States and the Soviet Union in the 1950s, deploying the Regulus I missile and the Soviet P-5 Pyatyorka (also known by its NATO reporting name SS-N-3 Shaddock), both land attack cruise missiles that could be launched from surfaced submarines.
USS Ohio (SSBN-726/SSGN-726), the lead boat of her class of nuclear-powered fleet ballistic missile submarines (SSBN), is the fourth vessel of the United States Navy to be named for the U.S. state of Ohio. She was commissioned with the hull designation of SSBN-726, and with her conversion to a guided missile submarine she was re-designated SSGN ...
USS Michigan (SSBN-727/SSGN-727) is an Ohio-class nuclear-powered guided missile submarine (SSGN), converted from a ballistic missile submarine (SSBN), that is part of the United States Navy. She is the third vessel to bear the name of the U.S. state of Michigan.
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.
As part of the modernization, submarines will have their 24 P-700 Granit anti-ship missiles replaced with up to 72 newer 3M-54 Kalibr or P-800 Oniks anti-ship cruise missiles. The upgrade requires no design changes to the hull as the new missiles will fit into the existing launchers outside the pressure hull.