Grayback-class submarine

Grayback preparing to launch a Regulus II missile, c. 1960
Grayback preparing to launch a Regulus II missile, c. 1960
Class overview
NameGrayback class
Operators United States Navy
Preceded byTang class
Built1954–1958
In commission1958–1964, 1969–1984
Completed2
Retired1
Preserved1
General characteristics
TypeSubmarine
TonnageSurfaced: 2,712 tonnes (2,670 tons) Submerged: 3,708 tonnes (3,650 tons)
Displacement2,768 long tons (2,812 t) full
Length317 ft 7 in (96.80 m)
Beam27 ft 2 in (8.28 m)
Draft19 ft (5.8 m)
Propulsion
Speed
  • 15 knots (28 km/h; 17 mph) surfaced,
  • 12 knots (22 km/h; 14 mph) submerged
Test depth700 ft (210 m)[2]
Complement84
Armament

The Grayback-class submarine was a class of two guided missile-carrying submarines of the United States Navy. They carried the Regulus I and Regulus II nuclear cruise missiles, deployed 1957–64, that were rapidly phased out by Polaris Submarine Launched Ballistic Missiles (SLBMs). They and USS Halibut were the sole submarines designed specifically to carry Regulus missiles, and the only submarines capable of carrying Regulus II. However, USS Tunny and USS Barbero were modified earlier to carry two Regulus I missiles per boat.

  1. ^ a b Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 291–292. ISBN 0-313-26202-0.
  2. ^ a b Friedman, Norman (1995). U.S. Submarines Through 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 176–192, 234, 244. ISBN 1-55750-263-3.