High Quality Content by WIKIPEDIA articles! The SSM-N-8A Regulus was a ship and submarine launched, nuclear armed turbojet-powered cruise missile deployed by the United States Navy from 1955 to 1964. Its barrel-shaped fuselage resembled that of numerous fighter aircraft designs of the era, but without a cockpit. When the missile was ready for launch, it was fitted with two large booster rockets on the aft end of the fuselage.