Benjamin Franklin class submarine

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Benjamin Franklin class ballistic missile submarine
Image:Ssbn640b.gif
Class Overview
Class Type	Ballistic Missile Submarine
Class Name	In honor of Benjamin Franklin
Preceded By	Chronologically: Sturgeon-class attack submarine By Type: James Madison-class ballistic missile submarine
Succeeded By	Chronologically: USS Narwhal USS Glenard P. Lipscomb Los Angeles-class attack submarine By Type Ohio-class ballistic missile submarine
Ships of the Class:	See the list below for the ships of the Benjamin Franklin class

The Benjamin Franklin class of submarine was an evolutionary development from the James Madison class of fleet ballistic missile submarine. Having quieter machinery and other improvements, they are considered a separate class. Together with the George Washington, the Ethan Allen, the Lafayette, and the James Madison classes, they comprised the "41 for Freedom."

The Franklin class submarines were built with the Polaris A-3, and later converted to carry the Poseidon C-3. During the late 1970s and early 1980s, select units were further modified to carry Trident-I (C-4) missiles.

In the early 1980s, to make room for the Ohio-class ballistic missile submarines within the limits set by SALT II, the missile tubes of Kamehameha and James K. Polk were disabled. Those boats were redesignated special operations attack submarines and given SSN hull classification symbols.

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