Ethan Allen-class submarine: Difference between revisions
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|Builders=*[[General Dynamics Electric Boat]]<ref Name=FAS/> | |Builders=*[[General Dynamics Electric Boat]]<ref Name=FAS/> | ||
*[[Newport News Shipbuilding]]<ref Name=FAS>{{Cite web |url=https://fas.org/programs/ssp/man/uswpns/navy/submarines/ssbn608_ethanallen.html |title="SSBN-608 Ethan Allen-Class FBM Submarines" from the FAS |access-date=25 November 2015 |archive-date=13 March 2014 |archive-url=https://web.archive.org/web/20140313151605/http://www.fas.org/programs/ssp/man/uswpns/navy/submarines/ssbn608_ethanallen.html |url-status=dead }}</ref> | *[[Newport News Shipbuilding]]<ref Name=FAS>{{Cite web |url=https://fas.org/programs/ssp/man/uswpns/navy/submarines/ssbn608_ethanallen.html |title="SSBN-608 Ethan Allen-Class FBM Submarines" from the FAS |access-date=25 November 2015 |archive-date=13 March 2014 |archive-url=https://web.archive.org/web/20140313151605/http://www.fas.org/programs/ssp/man/uswpns/navy/submarines/ssbn608_ethanallen.html |url-status=dead }}</ref> | ||
|Operators= {{ | |Operators= {{navy|United States}} | ||
|Class before={{sclass|George Washington|submarine|4}} | |Class before={{sclass|George Washington|submarine|4}} | ||
|Class after= {{sclass|Lafayette|submarine|4}} | |Class after= {{sclass|Lafayette|submarine|4}} | ||
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==Design== | ==Design== | ||
Rather than being designed as {{sclass|Skipjack|submarine|0}} attack submarines with a missile compartment added, the ''Ethan Allen''s were the first submarines designed "from the keel up" as [[Ballistic missile submarine|Fleet Ballistic Missile (FBM)]] submarines carrying the [[UGM-27 Polaris|Polaris A-2 missile]]. They were functionally similar to the ''George Washington''s, but longer and more streamlined and with torpedo tubes reduced to four. In the early and mid-1970s, they were upgraded to Polaris A3s. Because their missile tubes could not be modified to carry the larger diameter [[UGM-73 Poseidon|Poseidon]] missile,<ref name="Polmar p22"> | Rather than being designed as {{sclass|Skipjack|submarine|0}} attack submarines with a missile compartment added, the ''Ethan Allen''s were the first submarines designed "from the keel up" as [[Ballistic missile submarine|Fleet Ballistic Missile (FBM)]] submarines carrying the [[UGM-27 Polaris|Polaris A-2 missile]] - the ''Ethan Allen''-class was the first to be designed under project [[Ship Characteristics Board|SCB 180]], and the ''George Washington''-class was a subsequent design (SCB 180A) made for a quickly implemented mobilization effort.<ref name="FriedmanSubs1" /> They were functionally similar to the ''George Washington''s, but longer and more streamlined and with torpedo tubes reduced to four. In the early and mid-1970s, they were upgraded to Polaris A3s. Because their missile tubes could not be modified to carry the larger diameter [[UGM-73 Poseidon|Poseidon]] missile,<ref name="Polmar p22"> | ||
{{Citation | {{Citation | ||
| last1=Polmar | | last1=Polmar | ||
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==External links== | ==External links== | ||
{{Commons category|Ethan Allen class submarines}} | {{Commons category|Ethan Allen class submarines}} | ||
* [http://www.navsource. | * [http://www.navsource.net/archives/08/06idx.htm NavSource SSBN photo gallery index] | ||
* [https://fas.org/nuke/guide/usa/slbm/ssbn-608.htm Federation of American Scientists] | * [https://fas.org/nuke/guide/usa/slbm/ssbn-608.htm Federation of American Scientists] | ||
Latest revision as of 18:46, 27 June 2025
Template:Short description Template:Use dmy dates Template:More citations needed
Template:Infobox ship imageTemplate:Infobox ship class overviewTemplate:Infobox ship characteristicsThe Ethan Allen class of fleet ballistic missile submarine was an evolutionary development from the Template:Sclass. The Ethan Allen, together with the George Washington, Template:Sclass, Template:Sclass, and Template:Sclass classes comprised the "41 for Freedom" that were the Navy's main contribution to the nuclear deterrent force through the late 1980s.
Design
Rather than being designed as Template:Sclass attack submarines with a missile compartment added, the Ethan Allens were the first submarines designed "from the keel up" as Fleet Ballistic Missile (FBM) submarines carrying the Polaris A-2 missile - the Ethan Allen-class was the first to be designed under project SCB 180, and the George Washington-class was a subsequent design (SCB 180A) made for a quickly implemented mobilization effort.[1] They were functionally similar to the George Washingtons, but longer and more streamlined and with torpedo tubes reduced to four. In the early and mid-1970s, they were upgraded to Polaris A3s. Because their missile tubes could not be modified to carry the larger diameter Poseidon missile,[2] they were not further upgraded.
Conversions
To comply with SALT II treaty limitations as the Template:Sclass ballistic missile submarines entered service, in the early 1980s the Ethan Allens were refitted and officially designated SSNs (fast attack submarines), but often referred to as a "slow approach". Their missile fire control systems were removed and the missile tubes were filled with concrete. Sam Houston and John Marshall were further converted to carry SEALs or other Special Operations Forces, accommodating 67 troops each with dry deck shelters to accommodate SEAL Delivery Vehicles or other equipment. The Ethan Allen-class submarines were decommissioned between 1983 and 1992.[3] All were disposed of through the nuclear Ship-Submarine Recycling Program 1992–1999.
Boats in class
Submarines of the Ethan Allen class:[4][3][5]
| Hull number | Name | Builder | Laid down | Launched | Commissioned | Decommissioned | Fate |
|---|---|---|---|---|---|---|---|
| SSBN-608 | Template:USS | General Dynamics Electric Boat | 14 September 1959 | 22 November 1960 | 8 August 1961 | 31 March 1983 | Disposed of through Ship-Submarine Recycling Program, 1999 |
| SSBN-609 | Template:USS | Newport News Shipbuilding and Drydock Co. | 28 December 1959 | 2 February 1961 | 6 March 1962 | 6 September 1991 | Disposed of through Ship-Submarine Recycling Program, 1992 |
| SSBN-610 | Template:USS | General Dynamics Electric Boat | 15 March 1960 | 15 June 1961 | 10 March 1962 | 1 December 1983 | Disposed of through Ship-Submarine Recycling Program, 1997 |
| SSBN-611 | Template:USS | Newport News Shipbuilding and Drydock Co. | 4 April 1960 | 15 July 1961 | 21 May 1962 | 22 July 1992 | Disposed of through Ship-Submarine Recycling Program, 1993 |
| SSBN-618 | Template:USS | 3 February 1961 | 24 February 1962 | 4 January 1963 | 24 January 1985 | Disposed of through Ship-Submarine Recycling Program, 1998 |
See also
References
- Public Domain This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.
External links
Template:Military navigation Template:US submarine classes after 1945
- ↑ Cite error: Invalid
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedFAS - ↑ California Center of Military History (dead link 2015-05-07) Template:Webarchive