USS ''Sam Rayburn'' (SSBN-635) was a
fleet ballistic missile submarine
A ballistic missile submarine is a submarine capable of deploying submarine-launched ballistic missiles (SLBMs) with nuclear warheads. These submarines became a major weapon system in the Cold War because of their nuclear deterrence capabi ...
named for
Sam Rayburn
Samuel Taliaferro Rayburn (January 6, 1882 – November 16, 1961) was an American politician who served as the 43rd speaker of the United States House of Representatives. He was a three-time House speaker, former House majority leader, two-time ...
(1882–1961),
Speaker of the United States House of Representatives
The speaker of the United States House of Representatives, commonly known as the speaker of the House or House speaker, is the Speaker (politics), presiding officer of the United States House of Representatives, the lower chamber of the United ...
(1940–1947, 1949–1953, and 1955–1961). ''Sam Rayburn'' was in commission 2 December 1964 to 31 July 1989 carrying the
Polaris
Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinisation of names, Latinized to ''Alpha Ursae Minoris'') and is commonly called the North Star or Pole Star. With an ...
missile and later the
Poseidon
Poseidon (; ) is one of the twelve Olympians in ancient Greek religion and mythology, presiding over the sea, storms, earthquakes and horses.Burkert 1985pp. 136–139 He was the protector of seafarers and the guardian of many Hellenic cit ...
missile. Following decommissioning, ex-''Sam Rayburn'' was converted into a moored training ship for use at the
Naval Nuclear Power Training Unit at
Goose Creek, South Carolina
Goose Creek is the most populous city in Berkeley County, South Carolina, Berkeley County in the U.S. state of South Carolina. The population was 45,946 at the 2020 United States Census, 2020 census, making it the List of municipalities in South ...
.
Construction and commissioning
The contract to build ''Sam Rayburn'' was awarded to
Newport News Shipbuilding and Dry Dock Company in
Newport News, Virginia
Newport News () is an Independent city (United States), independent city in southeastern Virginia, United States. At the 2020 United States census, 2020 census, the population was 186,247. Located in the Hampton Roads region, it is the List of c ...
on 20 July 1961 and her keel was laid down there on 3 December 1962. She was
launched on 20 December 1963, sponsored by Mrs. S. E. Bartley and Mrs. W. A. Thomas, and
commissioned on 2 December 1964, with
Captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...
Oliver H. Perry, Jr., in command of the Blue Crew and
Commander
Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...
William A. Williams III in command of the Gold Crew.
Service history
''Sam Rayburn'' conducted demonstration and
shakedown
Shakedown or Shake Down may refer to:
* Shakedown (continuum mechanics), a type of plastic deformation
* Shakedown (testing) or a shakedown cruise, a period of testing undergone by a ship, airplane or other craft before being declared operational ...
operations on the
Atlantic Missile Range
The Eastern Range (ER) is an American rocket range (Spaceport) that supports missile and rocket launches from the two major List of rocket launch sites, launch heads located at Cape Canaveral Space Force Station and the Kennedy Space Center ( ...
, first operated by her Blue Crew and then by her Gold Crew. She joined
Submarine Squadron 18
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
at
Charleston,
South Carolina
South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north and northeast, the Atlantic Ocean to the southeast, and Georgia (U.S. state), Georg ...
, before her first
Polaris ballistic missile deterrent patrol in the summer of 1965. In August 1965, she joined
Submarine Squadron 16 and made seven deterrent patrols out of
Rota,
Spain
Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
, before rejoining Submarine Squadron 18 at Charleston in December 1966. During 1967, ''Sam Rayburn'' completed her 8th through 11th deterrent patrols. During 1968, she completed her 12th through 14th deterrent patrols.
During 1969, ''Sam Rayburn'' operated continuously with Submarine Squadron 18 until commencing
overhaul
Overhaul may refer to:
* The process of overhauling, see
** Maintenance, repair, and overhaul
** Refueling and overhaul (eg. nuclear-powered ships)
** Time between overhauls
Time between overhauls (abbreviated as TBO or TBOH) is the manufactu ...
at
Portsmouth Naval Shipyard
The Portsmouth Naval Shipyard (PNS), often called the Portsmouth Navy Yard, is a United States Navy shipyard on Seavey's Island in Kittery, Maine, bordering Portsmouth, New Hampshire. The naval yard lies along the southern boundary of Maine on ...
at
Kittery,
Maine
Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...
, in December 1969. Upon completion of overhaul on 27 May 1971, she operated along the
United States East Coast
The East Coast of the United States, also known as the Eastern Seaboard, the Atlantic Coast, and the Atlantic Seaboard, is the region encompassing the coast, coastline where the Eastern United States meets the Atlantic Ocean; it has always pla ...
for the remainder of 1971 and into 1972.
In 1972, ''Sam Rayburn'' departed
Groton,
Connecticut
Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...
, and arrived at Charleston before departing Charleston on an extended period of special operations. In June 1974, she remained engaged in those special operations.
Deactivation, decommissioning, and disposal

On 10 June 1985, the U.S. Navy announced plans to dismantle a fleet ballistic missile submarine so as to remain within the
SALT II
The Strategic Arms Limitation Talks (SALT) were two rounds of bilateral conferences and corresponding international treaties involving the United States and the Soviet Union. The Cold War superpowers dealt with arms control in two rounds of ...
strategic arms limitation treaty ceiling on
MIRV
A multiple independently targetable reentry vehicle (MIRV) is an exoatmospheric ballistic missile payload containing several warheads, each capable of being aimed to hit a different target. The concept is almost invariably associated with i ...
ed ballistic missiles. ''Sam Rayburn'' was selected and was deactivated on 16 September 1985, with missile tubes filled with concrete and tube hatches removed. Her missile compartment was later dismantled and the two halves (bow and stern) of the ship were pulled together and welded in place for use as a training ship.
''Sam Rayburn'' was decommissioned on 31 July 1989 and reclassified a
moored training ship (MTS) with
hull number
A hull number is a serial identification number given to a boat or ship. For the military, a lower number implies an older vessel. For civilian use, the Hull Identification Number (HIN) is used to trace the boat's history. The precise usage varie ...
MTS-635.
Struck from the
Naval Vessel Register
The ''Naval Vessel Register'' (NVR) is the official inventory of ships and service craft in custody of or titled by the United States Navy. It contains information on ships and service craft that make up the official inventory of the Navy from t ...
on 31 July 1989,
she arrived at the Naval Nuclear Prototype Training Unit at
Goose Creek, South Carolina, in August 1989 after achieving initial criticality in her new role on 29 July 1989. Her modifications included special mooring arrangements, including Water Brake, a mechanism to absorb power generated by her main propulsion shaft. She operated as a moored training ship from 1989-2021. MTS-635 departed the Naval Nuclear Power Training Unit Charleston on 1 April 2021 via a tow vessel and escort, arriving at Norfolk Naval Shipyard in Portsmouth Virginia on 3 April 2021 to await defueling and eventual dismantling.
The Naval Nuclear Power Training Unit at Goose Creek, South Carolina will continue to train students with replacement converted training ships; the (SSN-701) and the .
''Sam Rayburn'' left Norfolk on April 2, 2025, bound for Bremerton, Washington for storage and eventual recycling.
[https://www.dvidshub.net/news/484778/nnsy-completes-inactivation-mts-sam-rayburn]
References
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External links
* – Includes maps, sketches, a list of ships of the Texas Navy, and a chronology. Also includes photographs of 20th-century U.S. Navy ships named after Texans or Texas locations, including photographs of ''Sam Rayburn''.
{{DEFAULTSORT:Sam Rayburn (SSBN-635)
Ships built in Newport News, Virginia
James Madison-class submarines
Cold War submarines of the United States
Nuclear submarines of the United States Navy
1963 ships