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NavSource Online: Service Ship Photo Archive


ATA-234 was sold to Brazil and named Tritao (R1)
Sotoyomo Class Auxiliary Fleet Tug:
  • Laid down, 3 March 1945, by Gulfport Boiler & Welding Works, Port Arthur, TX.
  • Launched, 7 May 1945
  • Canceled by the War Shipping Administration in 1945
  • Completed in December 1945
  • Struck from the Naval Register, 12 March 1946
  • Transferred to the Maritime Commission for disposal
  • Sold, 26 March 1947, to Brazil, named Tritao (R1)
  • Redesignated (R21), date unknown
  • Final Disposition, fate unknown
    Displacement 835 t.(lt) 1,360 t.(fl)
    Length 143'
    Beam 33' 10"
    Draft 13' 2" (limiting)
    Speed 12 kts.
    one single 3"/50 dual purpose gun mount
    two single 20mm AA gun mounts
    Largest Boom Capacity 5 t.
    Officers 5
    Enlisted 40
    Fuel Capacity
    Diesel 1,200 Bbls
    two GM 12-278A Diesel-electric engines
    single Fairbanks-Morse Main Reduction Gears
    two 60Kw 120V. D.C. Ship's Service Generators
    single propeller, 1,200shp

    Click On Image
    For Full Size Image
    Size Image Description Contributed
    War Shipping Administration
    ATR-234 316k ATA-234 underway on builder's trials near Port Arthur, Texas, date unknown.
    Photos from Gulfport Boiler and Welding Works, Port Arthur, TX.
    Jim Swank
    Tritao (R-21)
    ATR-234 93k Ex-ATA-234 underway as the Brazilian Rescue Tug Tritao (R-21) in 1968, location unknown.
    Brazilian Navy photo.
    Robert Hurst

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    Last Updated 5 December 2014