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NavSource Online: Service Ship Photo Archive

US Army Large Tug LT-2077
Mizar (RV-1 / YTM-759)

US Army Large Tug LT-2077 was transferred to the US Navy, named Mizar (RV-1)
Awards, Citations and Campaign Ribbons

National Defense Service Medal

US Army Large Tug
  • Laid down, date unknown, at National Steel and Shipbuilding Co., San Diego, CA.
  • Launched, date unknown
  • Delivered to the US Army in 1954
  • Acquired by the US Navy in 1962 and placed in service as Research Vessel Mizar (RV-1)
  • Redesignated Harbor District Tug, Medium YTM-759
  • Mizar was assigned to the Naval Ordinance Testing Station, Long Beach, CA.
  • Reclassified Miscellaneous Unclassified IX-505, name withdrawn
  • Placed out of service and struck from the Naval Register, date unknown
  • Final Disposition, disposed of, sold by Defense Reutilization and Marketing Service (DRMS) for reuse/conversion, 1 April 1979
  • Propulsion system converted to a twin screw configuration by Marine Power and Equipment of Seattle, WA in 1981
  • Sold to Clear Water Marine Towing of Pennsylvania in 2001, renamed Marine Explorer
  • Sold to Immels Marine, Inc. of St. Thomas, U.S.Virgin Islands in 2004, renamed Courageous
    Displacement 310 t.(fl)
    Length 107'
    Beam 27'
    Draft 12'
    Speed 12 kts.
    Complement 16
    Armament none
    As Built - diesel, single screw
    Commercial Service - two GM16V149Ti' diesel engines, twin screws 2,600BHP
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    Size Image Description Source
    Mizar (YTM-759)
    YTM-759 60k Mizar (YTM-759) underway, date and place unknown. Courtesy National Association of Fleet Tug Sailors - Contributed by Ed Fulcher
    Commercial Service
    YTM-759 51k Ex-Mizar (YTM-759) in commercial service, moored, date and place unknown. Courtesy Marcon International

    There is no DANFS history for Mizar (YTM-769) available at NavSource
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log

    Additional Resources and Web Sites of Interest
    National Association of Fleet Tug Sailors

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    This page is created and maintained by Gary P. Priolo
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    Last Updated 20 October 2006