Editing Gato-class submarine (section)

===Guided-missile submarine===
[[File:USS Tunny (SSG-282) Regulus launching sequence c1956.jpg|thumb|{{USS|Tunny|SSG-282|2}} fires a Regulus I missile]]
The [[Regulus missile|Regulus]] nuclear [[submarine-launched cruise missile|cruise missile]] program of the 1950s provided the U.S. Navy with its first strategic missile capability. {{USS|Tunny|SS-282|2}} was converted under SCB 28 in 1953 to house and fire this large surface-launched missile and was designated SSG ([[Cruise missile submarine|guided-missile submarine]]). She could carry two of the missiles in a cylindrical hangar on the aft deck. She made [[Regulus missile submarines|strategic deterrent patrols]] with Regulus until 1964, when the program was discontinued in favor of [[Polaris Missile|Polaris]].<ref name=DANFSTunny>{{harvnb|DANFS ''Tunny''}}</ref>