USS Ethan Allen (SSBN-608)

For other ships with the same name, see USS Ethan Allen.

USS Ethan Allen (SSBN-608)

USS Ethan Allen (SSBN-608)
History
United States
Namesake	Ethan Allen (1738–1789), a hero of the American Revolutionary War
Ordered	17 July 1958
Builder	General Dynamics Electric Boat
Laid down	14 September 1959
Launched	22 November 1960
Sponsored by	Mrs. Robert H. Hopkins
Commissioned	8 August 1961
Decommissioned	31 March 1983
Stricken	2 April 1983
Fate	Recycling via the Ship and Submarine Recycling Program completed 30 July 1999
General characteristics
Class and type	Ethan Allen-class Fleet Ballistic Missile (FBM) submarine (hull design SCB-180)[1]
Displacement	6,955 long tons (7,067 t) (surfaced) 7,880 long tons (8,010 t) (submerged)[2]
Length	410 feet 4 inches (125.07 m)
Beam	33.1 feet (10.1 m)
Draft	27 feet 5 inches (8.36 m)
Propulsion	S5W reactor two General Electric geared steam turbines 15,000 shp (11,000 kW)[2] one shaft
Speed	16 kn (18 mph; 30 km/h) (surfaced) 21 kn (24 mph; 39 km/h) (submerged)
Test depth	1,300 ft (396 m)
Complement	12 officers and 128 enlisted men (each of two crews, Blue and Gold)
Armament	16 Polaris ballistic missiles 4 x 21 in (533 mm) torpedo tubes (bow), 12 torpedoes[2]

Universal newsreel about USS Ethan Allen

USS Ethan Allen (SSBN-608), lead ship of her class, was the second ship of the United States Navy to be named for American Revolutionary War hero Ethan Allen.

Ethan Allen's keel was laid down by the Electric Boat Corporation of Groton, Connecticut. She was launched on 22 November 1960, sponsored by Margaret Hitchcock (Sims) Hopkins, great-great-great-granddaughter of Ethan Allen and wife of Robert H. Hopkins. The ship was commissioned on 8 August 1961, with Captain Paul L. Lacy, Jr., commanding Blue Crew and Commander W. W. Behrens, Jr., commanding the Gold Crew.

Ethan Allen (Navy hull design SCB 180) was the first submarine designed as a ballistic missile launch platform.^[2] (The earlier George Washington class were converted attack submarines.) She was constructed from HY80 steel (high yield, 80,000 psi (550,000 kPa) yield strength),^[2] and was fitted with the Mark 2 Mod 3 Ships Inertial Navigation System (SINS).^[2] At launch, she was outfitted with Polaris A-2 (UGM-27B) submarine-launched ballistic missiles (SLBMs) and Mark 16 Mod 6 torpedoes; the torpedo fire control system was the Mark 112 Mod 2.^[2] The A-2s would be replaced with Polaris A-3s and but maintained the high pressure air ejection launch gear throughout the rest of her career as a FBM. The fire control system was upgraded to the Mark 80 fire control systems during 1965,^[2] while in the 1970s these would be replaced with Polaris A-3Ts.^[2] In addition, Ethan Allen was updated with Mark 37 and (later) Mark 48 torpedoes during her operational lifetime.^[2]

On 6 May 1962, Ethan Allen, under Captain Lacy and with Admiral Levering Smith aboard, launched a nuclear-armed Polaris missile that detonated at 11,000 feet (3.4 km) over the South Pacific. That test (Frigate Bird), part of Operation Dominic, was the only complete operational test of an American strategic missile. The warhead was said to hit "right in the pickle barrel". USS Carbonero and USS Medregal participated in the test, about 30 miles from the impact point.

To make room for the new Ohio-class ballistic missile submarines within the limitations of SALT II, Ethan Allen's missile tubes (and those of other George Washington and Ethan Allen-class ballistic missile submarines) were disabled, and she was redesignated an attack submarine (hull number SSN-608) on 1 September 1980.

Ethan Allen was decommissioned on 31 March 1983 and stricken from the Naval Vessel Register on 2 April 1983. Her hulk was tied up in Bremerton, Washington, until entering the Nuclear Powered Ship-Submarine Recycling Program. Recycling was completed on 30 July 1999.^{[citation needed]}.

In Tom Clancy's novel The Hunt for Red October (published 1984), the USS Ethan Allen is blown up as a decoy in order to convince the Russian Navy that the Red October has been destroyed. (This plotline doesn't feature in the later film adaptation.)

Notes

1. Adcock, Al. (1993), U.S. Ballistic Missile Submarines, Carrolltown, Texas: Squadron Signal, pp. 17, 4 also credits mythical interwar Albacore and Trout classes
2. Adcock, Al. (1993), U.S. Ballistic Missile Submarines, Carrolltown, Texas: Squadron Signal, p. 17

 This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.