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NavSource Online: Service Ship Photo Archive


International Radio Call Sign:
November - Juliet - Oscar - Xray
Awards, Citations and Campaign Ribbons

National Defense Service Medal (2)

YP- 654 Class Training Craft
  • Built by Stephen Bros., Stockton, CA (YN M-4)
  • Laid down, 15 March 1957
  • Launched, 08 August 1957
  • Delivered and placed in service, 26 June 1958
  • Served as trainig craft at US Naval Academy, Annapolis, MD, 1958 - unknown date
  • Served with Surface Warfare Officer's School Pacific at Coronado CA (unofficially named Freedom), 1988 - 1992
  • Placed out of service, date unknown
  • Struck from the Naval Register, date unknown
  • Transferred to other agency, 04 February 1994
  • Donated to Pittsburgh Voyager (now RiverQuest), a not for profit educational foundation, by USN Community Service Program, 1996
  • Transported to New Orleans aboard aboard USS Fort McHenry (LSD-43)
  • Refitted at Avondale Shipyard, New Orleans, LA
  • Departed for Pittsburgh via Tombigbee Waterway & Ohio River, May 1997
  • Documented as Discovery (ON 1031081), 1997
  • Retired in 2009 and sold
  • Registered to Chris Cox, Cambrdige, MD, as Arctic Loon, circa 2009
  • Final disposition, noted as yacht Sea Wolf at a Cambridge marina, 2022
    Displacement 66 tons (fl)
    Length 81'
    Beam 18'
    Draft 6'
    Speed 12 knots
    Armament none
    Complement 2 Officers, 8 Enlisted
    Range 1800 nm
    two 12V-71N Detroit Diesel engines
    two propellers, 437 SHP 437 shaft horsepower @ 2,100 RPM

    Click On Image
    For Full Size Image
    Size Image Description Contributed By
    224k YP-656, YP-658 and YP-657 underway in column formation near the US Naval Academy at Annapolis, MD. while conducting midshipman training, date unknown. Bill Stevens
    121k YP-657 underway, date and location unknown.
    US Navy photo
    Stan Svec
    Commercial Service
    12k Undated image of Discovery. Robert Hurst
    56k Ex-YP-657 as Discovery, date and location unknown. Dave Wright
    948k Panoramic view of Sea Wolf moored at Cambridge, MD, July 2022. Tim Smith
    687k Two views of Sea Wolf moored at Cambridge, MD, July 2022. Don Barker

    There is no DANFS history record for YP-657 available at Navsource
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log

    Additional Resources and Web Sites of Interest
    US Navy Fact File - Yard Patrol Craft - YP
    Back To The Navsource Photo Archives Main Page Back To The Service Craft Type Index Back To The Patrol Craft (YP) Photo Index
    Comments, Suggestions, E-mail Webmaster.
    This page was created by Gary P. Priolo and is maintained by David L. Wright
    All pages copyright NavSource Naval History
    Last Updated 05 August 2022