Please report any broken links or trouble you might come across to the Webmaster. Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online: Service Ship Photo Archive


International Radio Call Sign:
November - Tango - Yankee - Hotel
Awards, Citations and Campaign Ribbons

Precedence of awards is from left to right
American Campaign Medal - World War II Victory Medal

Sotoyomo Class Auxiliary Fleet Tug:
  • Planned and authorized as Fleet Tug AT-173
  • Laid down, 7 November 1943, as Rescue Ocean Tug ATR-100 at Gulfport Shipbuilding, Port Arthur TX.
  • Reclassified Auxiliary Fleet Tug ATA-173, date unknown
  • Launched, 12 March 1944
  • Commissioned USS ATA-173, 12 April 1944, LTjg. W.H. Moore, USN in command
  • Decommissioned, date unknown
  • Struck from the Naval Register, date unknown
  • Merchant Service
  • Sold for merchant services, date unknown, to Lisbon Harbor Board, Lisbon, Portugal. renamed Dom Luiz
  • Resold in 1987, renamed Alpertucho, owner 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 4 t.
    Officers 5
    Enlisted 40
    Fuel Capacity
    Diesel 1,200 Bbls
    two GM 12-278A Diesel-electric engines
    single Fairbanks Morse Main Reduction Gear Ship's Service Generators
    one Diesel-drive 60Kw 120V D.C.
    one Diesel-drive 30Kw 120V D.C.
    single propeller, 1,200shp

    Click On Image
    For Full Size Image
    Size Image Description Contributed
    ATA-173 426k ATR-100 running acceptance trials at Port Arthur, TX,, early 1944. Note the name board mounted on the bridge deck shield aft of the bridge. “ATR-100” but no hull number on the bow. Note also the mounting of a 20mm gun on the bridge wing (with “monkey bars” which prevented a free swinging of the mount all the way aft and the mast yardarms. This photo was edited to eliminate the radar and the TBS antennas. Also of note is the elongated 01 deck house aft of the bridge deck which was common on Army LT’s and British lend lease BAT’s but not Navy ATA types. James Swank

    There is no history available for USS ATA-173 at NavSource
    Commanding Officers
    01LTjg. Moore, W.H., USN12 April 1944 - December 1944
    02LTjg. Bonner, James V. USNRDecember 1944 - May 1945
    03LTjg. Wyatt Jr., William L., USNRMay 1945 - December 1945
    04LTjg. Miller, Charles Mentor, USNDecember 1945 - ?
    Courtesy Wolfgang Hechler

    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
    Back To The Navsource Photo Archives Main Page Back To The Service Ship Photo Index Back To The Fleet Tug (AT) Photo Index Back To The Ocean Rescue Tug (ATR) Photo Index Back To The Auxiliary Fleet Tug (ATA) 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 15 May 2020