Regulus missile submarines

Regulus missile submarines

USS Grayback, one of the five submarines that operated Regulus missiles Preview warning: Page using Template:Infobox ship image with unknown parameter "image_size"
Class overview
Name	USS Tunny USS Barbero Grayback-class USS Halibut
Operators	United States Navy
Succeeded by	41 for Freedom (strategic deterrent) Ohio-class (cruise missile)
Built	6 March 1953 to 4 January 1960
Planned	16
Completed	5
Active	0
Lost	0
Retired	5
Preserved	1
General characteristics
Length	311–350 ft (95–107 m) (depending on class)
Beam	27–29 feet (8.2–8.8 m)
Draft	17–28 feet (5.2–8.5 m)
Complement	5-9 officers, 54-88 enlisted
Armament	6-10 × 21-inch (533 mm) torpedo tubes 2-5 SSM-N-8 Regulus or 2-4 SSM-N-9 Regulus II (Grayback / Halibut classes)

The Regulus missile submarines were a group of submarines operated by the United States Navy (US Navy) capable of carrying the Regulus cruise missile. Between 1959 and 1964, a total of five boats were used to undertake the first submarine-based nuclear deterrent patrols by the United States. Regulus submarines were used for this task until 1964, when sufficient ballistic missile submarines carrying the Polaris ballistic missile became available.