USS Ethan Allen (SSBN-608)
USS Ethan Allen (SSBN-608)
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| History | |
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 United States
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| 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 |
| Commissioned: | 8 August 1961 |
| Decommissioned: | 31 March 1983 |
| Struck: | 2 April 1983 |
| Fate: | Recycling via the Ship and Submarine Recycling Program completed 30 July 1999 |
| General characteristics | |
| Class and type: | Ethan Allen class |
| Type: | Fleet Ballistic Missile (FBM) submarine (hull design SCB-180) |
| Displacement: |
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| Length: | 410 feet 4 inches (125.07 m) |
| Beam: | 33.1 feet (10.1 m) |
| Draft: | 27 feet 5 inches (8.36 m) |
| Propulsion: |
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| Speed: | 16 kn (18 mph; 30 km/h) (surfaced), 21 kn (24 mph; 39 km/h) (submerged) |
| Test depth: | 1,300 ft (400 m) |
| Complement: | 12 officers and 128 enlisted men (each of two crews, Blue and Gold) |
| Armament: | 16 Polaris ballistic missiles, 4 x 21 in (530 mm) torpedo tubes (bow), 12 torpedoes |
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 Mrs. Robert H. Hopkins, great-great-great-granddaughter of Ethan Allen. 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. (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), and was fitted with the Mark 2 Mod 3 Ships Inertial Navigation System (SINS). 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. The A-2s would be replaced with Polaris A-3s and their gas/steam ejection launch gear and Mark 80 fire control systems during 1965, while in the 1970s these would be replaced with Polaris A-3Ts. In addition, Ethan Allen was updated with Mark 37 and (later) Mark 48 torpedoes during her operational lifetime.
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