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NavSource Online: Service Ship Photo Archive

Monob One (YAG-61)
Monob One (IX-309)

  • Laid down by Zenith Dredge Co., Duluth, MN (YN 10), 01 December 1942
  • Launched, 03 April 1943
  • Placed in service as Water Barge, self-propelled YW-87, 11 November 1943
  • Allocated to the to 1st Naval District, serving at Casco Bay, ME during World War II
  • Converted to a Miscellaneous Unclassified Auxiliary, named and designated Monob One (IX-309) in 1969
  • Redesignated Yard Miscellaneous Auxiliary (YAG-61), 1 July 1970
  • Served as sound trials vessel, based initially at David W. Taylor Research Center, Port Everglades, FL
  • Later stationed at Naval Ships Research and Development Center, Carderock, MD, Acoustic Trials Detachment to support the ballistic missile submarine silencing program
  • Placed out of service, date unknown
  • Struck from the Naval Register, 2 August 1996
  • Sold to Mexico under terms of the Security Assistance Program, 2 August 1996
  • Renamed ARM Rio Suchiate (BI-05)
  • In service as survey ship Buque investigacion as of 2015
    YW Specifications:
    Displacement 440 t.(lt), 1390 t.(fl)
    Length 174'
    Beam 33'
    Draft 13' (max.)
    Speed unknown
    Complement 1 officer 20 enlisted
    Armament two single 20mm AA gun mounts
    Propulsion Diesel, single screw, 560shp

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    Monob One (YAG-61)
    Monob One 372k The acoustic research vessel Monob One (YAG-61) moored at Port Everglades, FL. The stern of the acoustic ocean surveillance ship USNS Indomitable (T-AGOS-7) is on the right, 3 July 1993.
    A US Navy photos by OS2 John Bouvia, from the American Forces Information Service Defense Visual Information Center.
    David Wright
    Monob One 1779k
    Monob One (IX-309)
    Monob One 21k Monob One (IX-309) at anchor, date and location unknown.
    US Navy photo.
    Gunter Krebs
    ARM Rio Suchiate (BI-05)
    Rio Suchiate 74k Monob One (YAG-61) in Mexican service as ARM Rio Suchiate, date and location unknown.
    Dave Wright

    There is no DANFS History for Monob One (IX-309) at the US Naval Historical Center
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log<
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    This page is created and maintained by Gary P. Priolo
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    Last Updated 5 June 2015