- USS Seawolf (SSN-575)
USS "Seawolf" (SSN-575), a unique submarine, was the third ship of the
United States Navy to be named for the seawolf, a solitary fish with strong, prominent teeth and projecting tusks that give it a savage look, was the second nuclear submarine, and the only U.S. submarine built with a liquid metal cooled (sodium )nuclear reactor .Comparison to "Nautilus"
"Seawolf" was technologically more advanced than her predecessor, USS "Nautilus" (SSN-571). Carrying a superheated steam powerplant, rather than a traditional saturated steam plant, reduced the size of the machinery spaces nearly 40%. Her liquid-sodium cooled reactor was more efficient than a water-cooled one, and quieter, but posed several safety hazards for the ship and crew. The phrase "Blue Haze" was often associated with the boat, even though there was only one sodium coolant leak ever noted, and that was while she was fitting out in the yards.
Although fully armed, "Seawolf", like the first nuclear submarine, "Nautilus", was primarily an experimental vessel. "Seawolf" was originally thought of publicly as a 'hunter-killer' sub, but in fact was intended to be a one off test platform for the LMSR reactor and future sonar platforms. Her future uses, however, would include covert operations in foreign waters, the likes of which were never envisioned by Admiral Rickover.
Initial construction
"Seawolf"'s keel was laid down
7 September 1953 by theElectric Boat division ofGeneral Dynamics Corporation inGroton, Connecticut . She was launched on21 July 1955 sponsored by Mrs. W. Sterling Cole, and commissioned on30 March 1957 with Commander R. B. Laning in command. Like all of the original nuclear subs, the project manager at Electric Boat was the General Manager of the company, in this case, the ubiquitous Bill Jones. During the parallel construction of the first nuclear submarines, the Navy, the Atomic Energy Commission, its independent labs, and the shipyard all worked together to learn together.For the yard, the Power Plant Project manager was a separate function on these original nukes. Dennis B. Boykin III would lead EB's power plant installation, and return to the project two years later for the conversion. His counterpart at the Office of Naval Reactors, Gardner Brown, did the same.
Lieutenant James Earl "Jimmy" Carter, the only U.S. President to qualify in submarines, was to be her Engineering Officer, but had resigned his commission upon the death of his father in 1953.
1957–1959
"Seawolf" departed
New London, Connecticut , on2 April for hershakedown cruise offBermuda and returned on8 May . Between16 May and5 August , she made two voyages toKey West and participated in intensive training exercises. On3 September , she steamed across the North Atlantic to participate inNATO exercises. The submarine surfaced offNewport, Rhode Island , on25 September after cruising 6,331 nonstop miles. The next day,President of the United States Dwight D. Eisenhower embarked and was taken for a short cruise onboard her."Seawolf" cruised to the
Caribbean Sea for an exercise in November. In December, she began an availability period that lasted until6 February 1958 . She then participated in exercises along the east coast until early August."Seawolf" submerged on
7 August and did not surface again until6 October . During this period, she logged over 13,700 nautical miles (25,400 km). She received theNavy Unit Commendation for demonstrating the ability of the nuclear-powered submarine to remain independent of the earth's atmosphere for the period of a normal war patrol."Seawolf" returned to Electric Boat Company in
Groton, Connecticut , on12 December 1958 , for conversion of her power plant from aS2G sodium-cooledLMFR to aS2Wa PWR . She was out of commission until30 September 1960 . The Office of Naval Reactors had determined that the one-off superheated steam powerplant was too difficult to maintain, since the superheaters were rarely operational. Constructed of rolled steel (vice forged steel), the superheaters were usually unable to produce in sufficient quantity to operate the plant at full capacity.On
April 18 ,1959 , the Navy disposed of the radioactive S2G plant by sealing it in a 30 foot high stainless steel containment vessel, towing it out to sea on a barge, and then sinking the barge at a point about 120 miles due east of Maryland in 9,100 feet of water. Twenty-one years later, the Navy was unable to relocate the container, but said that the radioactive materials inside should decay before the containment vessel deteriorated. [ "The Boston Globe ", May 17, 1980 ] [ Facts on File 1980 Yearbook, p458; ] [ http://prop1.org/2000/accident/1989/8907a1.htm Greenpeace July/August 1989 ]1960–1966
"Seawolf" began a three-week period of independent operations on
25 October and returned to fleet operations in November and December. On9 January 1961 , "Seawolf" sailed toSan Juan, Puerto Rico , to participate in local operations. On25 January , she was ordered to locate and track the Portuguese passenger liner "Santa Maria" which had been seized by pirates two days earlier. The submarine made contact with the liner off the coast ofBrazil on1 February . After "Santa Maria" surrendered inRecife , the submarine returned to San Juan and continued east coast operations.On
7 July , "Seawolf" began a two-month oceanographic voyage which took her toPortsmouth, England , before returning her to New London on19 September 1961 .In
1963 , "Seawolf" participated in the search for the lost USS "Thresher" (SSN-593) and in various local and fleet operations until April1964 . On28 April , "Seawolf" stood out of New London en route to theMediterranean Sea and a three and one-half month deployment with the Sixth Fleet. During the period, she operated withaircraft carrier "Enterprise" (CVAN-65), guided missilecruiser "Long Beach" (CGN-9), and guided missilefrigate "Bainbridge" (DLGN-25) as a part of the world's first nuclear task force. More local East Coast exercises followed until5 May 1965 . On that date, the submarine entered thePortsmouth Naval Shipyard for refueling and an extensive overhaul bringing her up to theSUBSAFE standard put in place after the loss of "Thresher". This overhaul lasted until September1966 .1967–1973
"Seawolf" sailed from
Portsmouth, New Hampshire , on24 August 1967 forNew London, Connecticut , which was again her home port. The following month, she sailed to theCaribbean Sea for refresher training and weapons trials. She had to have a propeller replaced atCharleston, South Carolina , in early October and then conducted sea trials in theBahama Islands for the remainder of the month. The end of the year1967 found her back at her home port."Seawolf" was operating from that port when she grounded off the coast of
Maine on30 January 1968 . She was towed back toNew London, Connecticut , for repairs and did not put to sea again until20 March 1969 , when she began sea trials. The submarine was in theCaribbean Sea during June and July conducting underwater sound and weapons systems tests. "Seawolf" was deployed with the Sixth Fleet from29 September to21 December 1969 ."Seawolf" operated along the East Coast until
9 November 1970 when her home port was changed toVallejo, California , and she sailed for the West Coast. The submarine transited thePanama Canal on17 November and changed operational control to Submarine Force, Pacific Fleet. She entered drydock atMare Island Naval Shipyard on8 January 1971 for overhaul and conversion to a special project platform and remained there until21 June 1973 , when she moved up the coast to Bangor, Washington. "Seawolf" returned to Mare Island on4 September 1973 .The euphemistic 'special project platform' description is explained by carefully examining photos of the ships from before and after the yard period. The extended hull forward of the sail held intelligence gathering equipment that supported covert operations.
1974–1978
In 1974, "Seawolf" completed post-conversion testing and evaluation period and conducted her first Pacific Fleet deployment, operating independently for a period of three months. For her performance of duty, she was awarded a second
Navy Unit Commendation . In 1975, "Seawolf" came under the exclusive direction of Submarine Development Group One, and for outstanding performance in 1974–1975, was awarded a Battle Efficiency "E."In 1976, "Seawolf" received her second consecutive Battle Efficiency "E" and the Engineering "E" for Excellence. During her second Pacific Fleet deployment, she conducted independent submerged operations for three months and demonstrated superior endurance by remaining submerged for 87 consecutive days, a U.S. Navy record. She received her third
Navy Unit Commendation .In 1977, "Seawolf" received her third Battle Efficiency "E" and her second Engineering "E" for Excellence. During her third Pacific Fleet deployment, she conducted 79 consecutive days of independent submerged operations and received her fourth
Navy Unit Commendation and theNavy Expeditionary Medal . In1978 , "Seawolf" conducted her fourth Pacific Fleet deployment.Some of the above deployments are chronicled in the book "
Blind Man's Bluff " by Sherry Sontag, Christopher Drew & Annette Lawrence Drew. Published in 1998, the book details previously classified stories of espionage and Cold War activities of American submarines, and specifically details one of "Seawolf"'s missions into a Russian harbor.1981–1987
In August
1981 , "Seawolf" deployed on her fifth Pacific Fleet deployment. She returned to homeport in October1981 and received theNavy Expeditionary Medal . In1983 , "Seawolf" conducted her sixth Pacific Fleet deployment of 76 days and returned toMare Island Naval Shipyard in May1983 . She was awarded the Navy Expeditionary Medal, another Battle Efficiency "E," another Engineering "E," a Supply "E," and a Damage Control "DC." In1984 , "Seawolf" conducted a 93-day deployment to the Western Pacific, returned in July, and continued her high operating tempo with numerous local operations. She was awarded her third consecutive Supply "E," a Communications "C," and the Deck Seamanship Award.In April
1986 , "Seawolf" conducted her last Western Pacific deployment and returned to Mare Island in June of1986 to prepare for decommissioning. Decommissioned30 March 1987 , "Seawolf" was stricken from theNaval Vessel Register the following10 July . The former submarine began the Navy'sShip-Submarine Recycling Program on1 October 1996 and completed it on30 September 1997 .References
External links
* [http://www.history.navy.mil/danfs/s9/seawolf-ii.htm history.navy.mil: USS "Seawolf"]
* [http://hazegray.org/danfs/submar/ssn575.txt hazegray.org: USS "Seawolf"]
* [http://www.navsource.org/archives/08/08575.htm navsource.org: USS "Seawolf"]
* [http://www.submarinehistory.com/PresidentCarter.html bio of President James Earl "Jimmy" Carter, Jr.]
* [http://www.oralhistoryproject.com World War II Submarine Veterans History Project]
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