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NavSource Online: Service Ship Photo Archive

USNS Mission Santa Ynez (T-AOT-134)
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USNS Mission Santa Ynez (T-AO-134) (1949)
Mission Santa Ynez (AO-134) (1947 - 1949)

International Radio Call Sign:
November - Hotel - Quebec - Lima
NHQL
Awards, Citations and Campaign Ribbons


Precedence of awards is from top to bottom, left to right
Top Row - National Defense Service Medal (2)
Bottom Row - Korean Service Medal (1) - United Nations Service Medal - Republic of Korea War Service Medal (retroactive)


Mission Buenaventura Class Fleet Oiler:
  • Laid down, 9 September 1943, as a Maritime Commission type (T2-SE-A2) tanker hull under Maritime Commission contract (MC hull 1275) at Marinship Corp., Sausalito, CA.
  • Launched, 19 December 1943
  • Delivered to the Maritime Commission, 13 March 1944, for charter by the War Shipping Administration to Pacific Tanker Inc., for operation
  • Returned to the Maritime Commission, 28 March 1946, for lay up in the National Defense Reserve Fleet, James River, Lee Hall, VA.
  • Acquired by the Navy, 22 October 1947
  • Placed in service by the Naval Transportation Service (NTS) as Mission Santa Ynez (AO-134)
  • Control transferred to the Military Sea Transportation Service (MSTS) 1 October 1949, redesignated USNS Mission Santa Ynez (T-AO-134) chartered to Mathiasen Tanker Industries, Inc., for operations
  • During the Korean War USNS Mission Santa Ynez participated in the following campaign:

    Korean War Campaign
    Campaign and Dates
    UN Summer-Fall Offensive, 5 to 18 September 1951
  • Redesignated Oil Transporter AOT-134, date unknown
  • Placed out of service, date unknown
  • Struck from the Naval Register, 1 November 1990
  • Transferred to the Maritime Commission, 20 October 1992, for lay up in the National Defense Reserve Fleet, Suisun Bay, Benecia, CA.
  • Final Disposition, sold for scrapping, 15 January 2010, to ESCO Marine, Brownsville, TX.
  • USNS Mission Santa Ynez earned one battle star for Korean War service
    Specifications:
    Displacement 5,532 t.(lt) 21,880 t.(fl)
    Length 523' 6"
    Beam 68'
    Draft 30' 10"
    Speed 15.1 kts (trial)
    Complement
    52 CivMar
    17 US Navy Armed Guard
    Armament
    one single 5"/38 dual purpose gun mount
    four single 3"/50 dual purpose gun mounts
    four twin 40mm AA gun mounts
    four twin 20mm AA gun mounts
    Cargo Capacity 15,300DWT
    Oil 120,400 Bbls
    Gasoline 575,000 Gals
    Fuel Capacity NSFO 9,235 Bbls
    Propulsion
    one General Electric turbo-electric engine
    two Babcock and Wilcox D-type boilers, 600psi 825°

    Ship's Service Generators
    two turbo-drive 400Kw 450V A.C.
    two turbo-drive 85Kw 120V D.C.
    two turbo-drive 55Kw 120V D.C.
    one turbo-drive 50Kw 450V A.C.
    single propeller, 10,000shp

    Click On Image
    For Full Size Image
    Size Image Description Contributed
    By
    Mission Santa Ynez (War Shipping Administration)
    Mission Santa Ynez 169k Mission Santa Ynez under construction on Way # 1 at the Marinship Corp., Sausalito, CA., 50 days after keel laying.
    US Maritime Commission photo by Marinship courtesy Auke Visser's Famous T - Tankers Pages,
    Robert Hurst
    Mission Santa Ynez 194k Mission Santa Ynez under construction on Way # 1 at the Marinship Corp., Sausalito, CA., 78 days after keel laying.
    US Maritime Commission photo by Marinship courtesy Auke Visser's Famous T - Tankers Pages,
    Robert Hurst
    Mission Santa Ynez 49k Mission Santa Ynez under way, probably during builders trials in San Francisco Bay, circa February-March 1944.
    US Maritime Commission photo by Marinship courtesy Auke Visser's Famous T - Tankers Pages,
    Robert Hurst
    USNS Mission Santa Ynez (T-AO-134)
    Mission Santa Ynez 78k USNS Mission Santa Ynez (T-AO-134) at anchor, date and location unknown.
    US Navy photo from "MSTS Mariner" magazine
    Carl R. Friberg Jr.
    Mission Santa Ynez 215k USNS Mission Santa Ynez (T-AO-134) underway, date and location unknown. David Buell
    Mission Santa Ynez 272k Ex-USNS Mission Santa Ynez (T-AO-134) laidup in reserve in the National Defense Reserve Fleet, Suisun Bay, Benecia, CA., date unknown. US Maritime Administration
    Mission Santa Ynez 204k

    View the USNS Mission Santa Ynez (T-AO-134)
    Dictionary of American Naval Fighting Ships (DANFS)
    Crew Contact And Reunion Information
    Fleet Tankers Association
    U.S. Navy Memorial Foundation - Navy Log

    Additional Resources and Web Sites of Interest
    MARAD Vessel History Data Base
    Back To The Navsource Photo Archives Main Page Back To The Service Force Ship Type Index Back To The Fleet Oiler (AO) Photo Index
    Comments, Suggestions, E-mail Webmaster.
    This page is created and maintained by Gary P. Priolo
    All pages copyright NavSource Naval History
    Last Updated 10 July 2015