About The Boat

 

~ LIBERATUM AMICITIAM RETINEBIS ET FIDEM  ~

~ You will preserve freedom, friendship, and faith.  ~

 

About the Boat:

USS JOHN ADAMS (SSBN 620) is the Navy's seventeenth nuclear powered fleet ballistic missile submarine and is named in honor of John Adams, the second President of the United States, and John Quincy Adams, the sixth President of the United States.

USS JOHN ADAMS began her career as she slid down the ways at Portsmouth, New Hampshire, at 1:10 pm on January 12, 1963. At 425 feet and 8000 tons, the JOHN ADAMS was the largest submarine launched from Portsmouth at the time. Mrs. James C.(Abigail Adams) Manny, the great-great-great granddaughter of John Quincy Adams, broke the traditional bottle of champagne on the submarine's stern, sending her bow first, into the icy Piscataqua River. On May 12, 1964, CDR Lando W. Zech, Jr. and CDR Paul J. Early assumed command of the Blue and Gold crews of the JOHN ADAMS and set the first watch as the ship was commissioned.

After a shakedown cruise, and test firing of her Polaris missiles off Cape Kennedy, Florida, USS JOHN ADAMS joined other Polaris missile subs on station. JOHN ADAMS then completed sixteen Polaris deterrent patrols while assigned to the Atlantic Fleet in operations based in Holy Loch, Scotland, and Rota, Spain.

In August 1968, she transited the Panama Canal on her way to Puget Sound Naval Shipyard in Bremerton, Washington, for overhaul and modernization. JOHN ADAMS completed overhaul in August 1969, and returned to sea as a unit of the Pacific Fleet.

It was during this time of service in the Pacific Fleet that the USS JOHN ADAMS was awarded a Meritorious Unit Commendation for her outstanding performance from December 1969 through October 1970.

Upon completion of her thirty-second patrol, JOHN ADAMS entered Portsmouth Naval Shipyard at Portsmouth, New Hampshire, for her second overhaul and conversion to the Poseidon missile system. During the overhaul period, JOHN ADAMS was presented with the 1975 COMSUBLANT Golden Anchor Award signifying the highest retention rate in the Atlantic Fleet Submarine Force. The ship completed her 26 month overhaul and conversion in April 1976, and returned to sea as a unit of the Atlantic Fleet.

After completing an additional forty-three patrols, from both her homeport in Charleston, South Carolina, and Holy Loch, Scotland, USS JOHN ADAMS transited the Panama Canal to again enter Puget Sound Naval Shipyard; this time in preparation for deactivation after a long and distinguished career.

During her last three years of service, the USS JOHN ADAMS has been awarded the 1986 Commander Submarine Force, U.S. Atlantic Fleet Silver Anchor Award for outstanding retention, been designated a COMSUBLANT Tactical Readiness Evaluation "Top Performer" for three consecutive years, and was awarded the 1987 Commander, Submarine Squadron FOURTEEN Battle Efficiency "E" and Engineering Red "E".

Fast, silent, and virtually immune to surprise attack, JOHN ADAMS has combined the endurance of nuclear power with the deterrent might of sixteen Poseidon Missiles for over twenty-four years of distinguished commissioned service. During her seventy-five strategic deterrent patrols, she has traveled over 975,000 miles, nearly 900,000 of these submerged, for a total of over fifteen years below the waves in defense of her nation.

 

Specifications:

 

  • USS JOHN ADAMS (SSBN 620) PatchKeel Laid: 19 MAY 61
  • Launched: 12 JAN 63
  • Commissioned: 12 MAY 64
  • Decommissioned: 24 MAR 89
  • Stricken: 12 FEB 96
  • Builder: Portsmouth Naval Shipyard, Kittery, Maine
  • Propulsion system: one S5W nuclear reactor
  • Screw: one
  • Length: 425 ft (130 meters)
  • Beam: 33 ft (10 meters)
  • Draft: 31 ft 6 in (9.6 meters)
  • Displacement, surfaced: approx. 7250 tons
  • Displacement, submerged: approx. 8250 tons 
  • Speed: Surfaced: in excess of 20 knots
  • Speed: Submerged: in excess of 25 knots
  • Armament: 16 x Polaris/Poseidon missles, four x 21 inch (533 mm) torpedo tubes
  • Crew: (2 crews) 13 Officers, 130 Enlisted

 

Sources: Dictionary of American Naval Fighting Ships, www.navysite.de

OPSEC Policy

The Cold War Boats Association prohibits the posting of Classified material on the the coldwarboats.org website.

Any documents, photographs, audio or video recordings, or artifacts that are currently considered Classified are not permitted, and will be removed.

Any information that could compromise the operational security of active duty personnel, commissioned ships, or their missions is not permitted, and will be removed.

Access to personally identifiable information (PII) of active-duty service members or information related to the crews of submarines currently in full or limited commission is restricted to administrators only.

Full details of the Cold War Boats Association's Security Policy can be found at: www.coldwarboats.org/security.

Questions and concerns should be directed to the Security Manager at security@coldwarboats.org.

Copyright Information

 
 
© 2026 Brad Williamson
and/or the
Cold War Boats Association
or respective image owners
 
All Rights Reserved
 
Permission is granted for not-for-profit reproduction
of text and images under the condition that
the coldwarboats.org watermark is retained,
all attribution as to owner and source is included,
and additionally, when republished electronically, a link to is provided.
 
 

Privacy Policy

The Cold War Boats Association is committed to protecting your personally identifiable information (PII). 

This information, your PII,  includes your email, your street address, your phone number(s), your personal records (such as a DD-214) and various other related information.

Your PII will never be shared, given, sold, or rented. It will not be accessible by others, except by administrators or moderators of the www.coldwarboats.org website as necessary in the performance of their duties.

Your use of the www.coldwarboats.org website is your acknowledgement that these limitations are understood.

Full details of the Cold War Boats Association's Privacy Policy can be found at: www.coldwarboats.org/privacy.

Questions and concerns should be directed to the Privacy Manager at privacy@coldwarboats.org.